v8.6.0 · open source on GitHub

One open platform for every construction app

Start with 161 built-in modules, then build or install your own. From estimating to BIM to the field, with an SDK, hooks and a marketplace so the platform becomes exactly the software your business runs on.

Up and running in one command

pip install openconstructionerp

docker run -p 8080:8080 ghcr.io/datadrivenconstruction/openconstructionerp

Download the desktop app Free - no Python, no Docker, nothing to set up Or try the live demo in your browser

macOS Linux Support the project Star it on GitHub

AGPL-3.0 Self-hosted 2 GB RAM

Open Construction ERP

Projectsportfolio Portfolio
& teams BOQassemblies Live
totals Schedules4D gantt Gantt
& BOQ CRMpipeline Leads
& deals Takeoffauto AI suggests
you confirm CAD / BIMDWG · IFC DWG · IFC
RVT · DGN Costs120k items 120k items
vector search Validationcompliance Traffic-light
report Tendersbid packs Compare
bids Carbon5D LCA Embodied
CO₂ Variationschange orders Scope & cost
changes Contractsawards One
audit trail Inventorymaterials Stock
& orders SafetyHSE Incidents
& toolbox Documentsrevisions Revisions
& diffs Site tasksdaily Snags
& photos Daily logsite diary Diary
& weather Equipmentfleet Fleet
& plant QualityQA · QC Defects
& audits Cashflowinvoices Invoicing
& budgets Reportingexports PDF · GAEB
JSON · API UsersRBAC · SSO RBAC
& SSO Customplug-in Your moduleadd your own BuildSDK · API

161 built-in modules

Projectsportfolio BOQassemblies Schedules4D gantt Takeoffauto CAD / BIMDWG · IFC Costs120k items Validationcompliance Tendersbid packs Contractsawards Inventorymaterials SafetyHSE Documentsrevisions Site tasksdaily Equipmentfleet QualityQA · QC Cashflowinvoices Reportingexports Procurementorders Timesheetshours Deliverieslogistics

connect your stack

Fits the tools you already run.

The platform sits at the open centre of your software, not on top of it. Data flows in and out through open formats, a documented API and webhooks, so your estimate, your model and your finance system stay in step - and nothing you put in is ever trapped.

OpenConstructionERP the open core of your stack

Accounting and ERP

Push priced bills, cost breakdowns and progress claims out as structured Excel, CSV or JSON, or wire them straight through the REST API, so the numbers land in your finance system without re-keying.

BIM and CAD authoring

Bring models and drawings in through open exchange formats - IFC for BIM, DWG and DGN for CAD - converted to one canonical model, and send review issues back out as BCF.

Document and cloud storage

Connect your document store over the REST API and webhooks, or keep a folder in sync, so drawings, contracts and reports have a single source of truth.

BI and reporting

Feed dashboards and data warehouses from the documented REST API and clean table exports in Excel, CSV, JSON and Parquet, the analytical column format, so the figures stay live instead of pasted.

Project scheduling

Activity lists, durations and dependencies move both ways as CSV and structured XML, keeping the estimate and the programme on one shared set of tasks.

Automation and webhooks

Subscribe to events with webhooks and drive the REST API from low-code automation flows built with n8n, our own workflow tooling, to connect anything to anything.

No lock-in, by design.

Every figure is exportable, the formats are open, and the same documented API that runs the app is open to you. Your data stays yours - you can always take it with you.

GAEB XMLIFCBCFDIN 276NRMMasterFormatBC3 / FIEBDC-3Excel / CSVJSONParquetREST APIWebhooksSDK

Read the integration and API docs

Product names, logos and brands are the property of their respective owners and are shown only to indicate data-exchange compatibility. Their use does not imply any partnership, affiliation or endorsement.

Guided playbooks

127 playbooks. Open one and follow it.

Beyond the modules, the platform ships a library of concrete, end-to-end playbooks - real construction workflows you open and follow step by step, with what to do and why at every stage.

127 playbooks across 8 disciplines

Explore all playbooks

Planning & controlsSet up a project and hand it overTake a job from the very first setup right through to handover. Create it, pr…520 minOpen

Estimating & costingPrice a building from a PDFStart from a flat PDF drawing and finish with a priced, validated estimate re…515 minOpen

BIM & takeoffGet 6D carbon from a BIM modelTurn a converted BIM model into an embodied carbon footprint. Auto-enrich rea…512 minOpen

Tendering & procurementRun a tender from a BOQTake a priced bill of quantities out to market: package it, invite the subcon…512 minOpen

Site & fieldRun the site dayClose the day out properly: record the diary, book the labour and plant hours…49 minOpen

BIM & takeoffCoordinate and resolve model clashesRun a clash coordination round: federate the discipline models, detect the cl…512 minOpen

Quality & safetyInspect work and close a non-conformanceInspect the work against its acceptance criteria, raise a non-conformance the…310 minOpen

Site & fieldAnswer an RFITurn a question from the working face into a tracked request, drive it to the…39 minOpen

Commercial & contractsTurn a change into a paid variationCapture a scope change while it is fresh, price it as a contract variation on…311 minOpen

Handover & lifecycleHand over and close outFinish the job cleanly: work the punch list to zero, confirm every inspection…514 minOpen

Explore all playbooks

Download

Get the real desktop app, free.

A native build of OpenConstructionERP for Windows, macOS and Linux. No Python, no pip, no Docker, no database to set up: one file, run it, and the full platform is on your machine. It stays free, it stays open source, and your data never leaves your disk.

Detecting your platform…

No Python, pip, Docker or DB
Data stays local
First launch ~60s, then fast
Open source, AGPL-3.0

Windows

Detected

Windows 10/11 - 64-bit installer

Download the installer
Run it and accept the prompt
First launch takes about a minute, then the app opens

Download

Reading latest release…

macOS

Detected

macOS 12+ - Apple Silicon

Download the .dmg
Drag the app to Applications
Open it from Applications

Download

Reading latest release…

Linux

Detected

AppImage, deb and rpm

It picks the right package (deb, rpm or AppImage)
Launch OpenConstructionERP from your app menu

curl -fsSL https://openconstructionerp.com/install.sh | sh

Reading latest release…

pip · Docker

One command and you are running

Install, then run

pip install openconstructionerp

One line, app plus database

docker compose up

PyPI · Docker Hub

What you actually get

The whole platform, not a trial

Everything is in the download: estimating and the bill of quantities, quantity takeoff from drawings, the schedule, documents and RFIs, quality and safety, and the CAD and BIM import. Cost catalogues for 48 economies and 27 interface languages come with it. Nothing is locked behind a paid tier and nobody counts your seats.

It runs on your own machine

There is no account to create and no cloud in the middle. The app starts its own database beside itself, so drawings, prices and projects stay in a folder you choose on your own disk, and the whole thing keeps working with the network switched off.

Nothing to maintain

The database, the server and the interface ship as one program. Updating means running the next installer over the top, and removing it leaves nothing behind except the data folder, which you keep or delete as you like.

System requirements: 64-bit Windows 10 or 11, macOS 12 or newer on Apple Silicon, or a current Linux. Around 2 GB of disk and 4 GB of memory is enough to work in comfortably.
The first minute: The first launch unpacks the database and takes about a minute, later starts take seconds. The app opens in your browser on your own machine with a demo project already loaded, so you can read a complete estimate before importing anything of your own.

One command and you are running

Install via pip or Docker

Already have Python or Docker? Pick a line, paste it, and the full ERP is up. No build step, no extra database to set up, your data stays on your machine.

Python packageInstall, then run

pip install openconstructionerp

openconstructionerp

Needs Python 3.12+. Installs, then opens at http://localhost:8080.

Full stackOne line, app plus database

docker compose -f docker-compose.quickstart.yml up

docker run -d -p 8080:8080 -v oe_data:/data ghcr.io/datadrivenconstruction/openconstructionerp:latest

Bundles PostgreSQL and the app. Open http://localhost:8080 when it boots.

View all builds and checksums on GitHub

02 · watch it run

See it work. In one take.

A short walkthrough of the whole pipeline - drawing in, tender out. No voiceover, no narration, just the product doing what it does.

03 · by the numbers

What you get when you install it.

What ships in the box on the current release. Cost data, CAD formats, modules and licensing, with the headline figures in one place.

cost database

ready-to-use cost items across trades and assemblies.

updated monthly

CAD formats

native CAD ingest, DWG, RVT, IFC, DGN, DXF and GLB into one canonical format.

DWG · RVT · IFC · DGN · DXF · GLB

modules

plug-in modules covering the full site workflow, projects, BOQ, takeoff, tenders and more.

add & remove like packages

licensing

open-source core under AGPL-3.0. No vendor lock-in. Your data stays yours.

AGPL-3.0 + Commercial

Built for your trade

One platform, shaped to how you build.

Pick the kind of company you run and the platform switches on exactly the modules that role needs, already wired together in one shared database. Hover or tap a profile to watch its module honeycomb light up, grouped by discipline and linked as a single connected system.

Every profile keeps the always-on platform core: projects, the cost database, resource catalog, assemblies, dashboards and admin. Profiles never lock anything away, they simply lead with the modules that matter most for the work, and you can add or drop any module later.

09 · open cost data

Nine cost bases. Every position built from resources.

A price you can defend starts one level deeper than a rate. Behind every work item sits its recipe - the labour hours, the materials and the machine time it really takes. That is what ships here: national cost bases from official sources, each work item broken down into its resources, ready to re-price for your market.

9national cost bases · 9 countries

111,134priced works described across all bases

1.28M+priced lines in total · works and their labour, material, machine

48market editions · local currency + language

TurkeyBirimFiyat · national unit prices

12,361 works

TRYfull resource

China · BeijingGB/T 50500 · municipal norms

11,312 works

CNYfull resource

Russia · CWICRGESN / ENiR / FER resource norms

55,719 works

RUBfull resource48 markets

BrazilSINAPI · analytical compositions

9,723 works

BRLfull resource

Spain · AndaluciaBCCA · FIEBDC-3 (BC3)

6,453 works

EURfull resource

Italy · ToscanaPrezzario regionale 2026

5,836 works

EURfull resource

VietnamDinh muc · TT 12/2021/TT-BXD

4,299 works

VNDresource norms

IndonesiaAHSP · Permen PUPR

2,784 works

IDRresource norms

GreeceGGDE · ATOE analytical tariffs

2,647 works

EURfull resource

Worked examples from the bases above

Pick a national base - the same four works, each built from its own resources and article codes.

Every base has its own line items and article codes. Priced bases are shown in euro for a like-for-like comparison; the coefficient bases show resource quantities from the national norm. Every description stays in the language you picked.

Engineers, construction firms and consultancies exploring OpenConstructionERP

A snapshot of the construction, engineering and infrastructure teams that signed up to try OpenConstructionERP or have worked with DataDrivenConstruction's open tools - across Europe, North America, MENA, APAC and Oceania.

PDMS

Brevart

Tekhne

ATMIID

Optimum Technology

Erbud

AtkinsRéalis

Mace Group

Swietelsky

Teichert

Elevait

MAD Engineers

Construccions 360 Plus

PDMS

Brevart

Tekhne

ATMIID

Optimum Technology

Erbud

AtkinsRéalis

Mace Group

Swietelsky

Teichert

Elevait

MAD Engineers

Construccions 360 Plus

LMH

ILO

Niven Builders

DK Construction

Consolis

Colas

Max Bögl

Colas Rail

Unispace

Arkad

Basil Read

C&C Consulting

LMH

ILO

Niven Builders

DK Construction

Consolis

Colas

Max Bögl

Colas Rail

Unispace

Arkad

Basil Read

C&C Consulting

Tegrity Contractors

PW Pole Barns

Digitarh

Overzicht

CSTB

Midea

Forida

Yutopias

Matrits

Virtuza

Tegrity Contractors

PW Pole Barns

Digitarh

Overzicht

CSTB

Midea

Forida

Yutopias

Matrits

Virtuza

Sodexo

Lodha Group

IC İçtaş

L&Q

Rhomberg Sersa Rail Group

The Beck Group

Woolpert

Stecol

Tucrail

Sodexo

Lodha Group

IC İçtaş

L&Q

Rhomberg Sersa Rail Group

The Beck Group

Woolpert

Stecol

Tucrail

01 · open source

The repo, in the open.

AGPL-3.0 on GitHub. Issues and the roadmap live there; if you want to see what's coming next or what broke last week, it's all on the commit log.

GitHub · datadrivenconstruction

Star the repo, shape the roadmap.

Every issue, PR and roadmap item is public on GitHub. Open an issue, comment on what matters, or send a PR. Contributions of any size are welcome.

AGPL-3.0open-source

Open the repo

Documentation

Getting started, module SDK, API reference and deployment guides.

Issues & roadmap

Every bug, feature request and roadmap item is tracked publicly.

Chat on Telegram

Questions, ideas and show-and-tell. Hop in for things that aren’t quite an issue yet.

Contributors

See them on GitHub →

People who've already starred the repo.

See them on GitHub →

Recently shipped

Full changelog on GitHub

v8.6.0 A data-driven estimating methodology engine, a full vector DWG and DXF takeoff, and construction machinery costed separately from installed equipment. 2026-06-18
v7.3.0 Schedule-quality validation pack with seven checks, in-app guidance across the platform (confidence badges, plain-language errors, glossary), and BIM grouping and search fixed in 26 languages. 2026-06-08
v7.2.0 Windows desktop install no longer hangs on a Turkish regional format, the AI Estimate Builder stops showing a fake price for an unpriced match, and the BIM filter panel is translated in all 26 languages. 2026-06-08
v7.1.0 A real desktop first launch with a provisioned local workspace, a conversational AI Estimate Builder with three named matching passes, and clash clusters tracked as one work item. 2026-06-07
v7.0.1 Desktop hotfix: the Windows app no longer exits silently after launch, reuses a running backend only when version and health match, and bundles the WebView2 runtime so first install needs no download. 2026-06-06
v7.0.0 AI Estimate Builder that walks any starting point to a priced bill, a useful module information card on every page, and a real collaboration hub with live comments, viewpoints and presence. 2026-06-06
v6.10.0 Field time and attendance with a payroll lifecycle, a cross-module project-controls dashboard, compliance enforced at contract gates, and AIA G702 and G703 payment applications. 2026-06-05

Trust · standards & assurance

Marks we can honestly stand behind.

No borrowed seals. Every mark here is either a plain fact about the software or a public badge you can check yourself: open standards we read and write, an OSI-approved licence you can read line by line, and your data on your own server.

Open source, AGPL-3.0 An OSI-approved licence. The whole platform is public on GitHub. Read every line, fork it, run it, keep it.

Self-hosted, your data stays yours Runs on your server. Projects, drawings and cost data live in your database. Nothing leaves your infrastructure.

No telemetry by default Nothing is phoned home, no tracking. Hosted AI is opt-in per workspace, and you can point it at your own models.

Open standards, read and written GAEB XML, DIN 276, NRM, MasterFormat, ISO 15686-5 and BCF. Native import and export, so there is no lock-in.

GDPR-ready by design Self-hosting keeps personal data on your own infrastructure, with data export and deletion built in. You stay the data controller.

27 languages built in The interface and the cost data ship in 27 languages. Adding another is a single JSON file, no rebuild.

What is not here, on purpose. Certifications that need a paid third-party audit (a certified EU GDPR seal, GoBD per IDW PS 880, ISO 27001) are not shown. We will only ever display a certificate once it is genuinely earned.

Live preview · no sign-up, no demo call

Skip the sales call. See it work.

No six-figure licence to read back your own data.

+50more features Tendering, reports, validation, collab, multi-tenant …

BOQ editor - build bills of quantities, priced rows

Cost database - 120,000 priced positions, instant semantic search

BIM to BOQ - link IFC and RVT model quantities directly to estimate positions

DWG to BOQ - CAD layers pushed into positions

PDF takeoff - click-to-measure on PDF drawings, straight to BOQ

Bulk-link CAD groups - select many elements, push quantities into BOQ at once

AI Estimate - snap a photo or upload a doc, get a first-pass priced estimate

01 BOQ editor Build bills of quantities, priced rows

04 · how it stacks up

How it compares to what you're using now.

A straight side-by-side. Commercial suites lead on a few things, mostly integrations paid for over a decade. On everything else, OpenConstructionERP already matches or beats them, at zero licence cost.

Capability	OpenConstructionERP	Enterprise estimating suite	Heavy civil bid tool	Legacy construction ERP
Open-source core (AGPL-3.0)	✓	✕	✕	✕
Self-host on your infra	✓	~	✕	~
AI takeoff from PDF / photo	✓	~	✕	✕
Multi-CAD ingest (DWG / RVT / IFC / DGN / DXF / GLB)	✓	✓	✕	✕
120,000+ cost items out of the box	✓	~	✓	~
Real-time multiplayer (CRDT)	✓	✕	✕	✕
27 languages in core i18n	✓	~	✕	~
Modular plugin architecture	✓	✕	✕	✕
Typical cost / seat / yr	€ 0 · self-host	€ 10-15k	€ 6-12k	€ 3-8k
Implementation / onboarding	€ 0 · docs + community	€ 20-80k	€ 15-40k	€ 30-150k
Contract term	None · cancel anytime	1-3 yr lock-in	1-3 yr lock-in	3-5 yr lock-in

✓ fully supported · ~ partial or via plugin · ✗ not supported

One platform to build on

Start with the whole ERP. Then build the rest yourself.

OpenConstructionERP is an open platform, not a closed product you have to fit into. You get 161 working modules on day one, and the same building blocks the core is made of, so you can extend it, connect it and turn it into exactly the software your business runs on.

161 modules to start

Estimating, BIM, takeoff, scheduling, finance and field ops are already built in and wired into one shared database. Switch on what you need and ignore the rest.

Your own modules

Scaffold a new module in one command with the SDK and CLI, drop it into your install and it loads in seconds. No fork, no rebuild, no waiting on anyone.

Hooks and an event bus

Reach past the surface. Subscribe to events and attach hooks to change how the core behaves, so your own logic runs right alongside ours.

A shared marketplace

Publish a module for your team or the community, and install what others have built. Regional cost data, connectors and rule sets, a click away.

In-app templates

Begin from ready-made building blocks inside the app, shape them to your workflow and reuse them across every project. Never start from a blank page.

One open platform, AGPL-3.0 and yours to build on, so the software your business runs on is finally your own.

modular by design

Add a module. Remove one.
No rebuild.

Every feature is a self-contained package. Drop it in, pull it out - the running install picks it up in seconds, zero downtime.

☰ BOQ oe-boq

◈ CAD / BIM oe-cad

✶ Takeoff oe-takeoff

◐ Reporting oe-reports

✓ Validation oe-validate

⎋ Tenders oe-tender

€ Costs DB oe-costs

⎘ Documents oe-docs

⌖ Regional prices oe-regional

+ your module
goes here

05 · developer experience

It's a module system, not a monolith.

Every feature is a Python package with a manifest. You can add one to a running install without rebuilding anything. The APIs are typed; the OpenAPI spec is generated, not hand-maintained.

Module SDK, scaffold one with make module-new
Typed REST API, auto-generated OpenAPI spec
Hooks & event bus, extend without forking

from openestimate import Client, Project

client = Client(url="https://api.yourco.com")

# Create a project and import CAD
project = client.projects.create(
    name="Logistics Hub - Jebel Ali",
    currency="EUR",
)

cad = project.cad.upload("./plans.ifc")
takeoff = cad.takeoff(ruleset="boq_quality")

# AI matches costs, you confirm
for pos in takeoff.positions:
    if pos.confidence > 0.85:
        pos.accept()

print(project.totals.grand)
# → Decimal('4_283_921.50')

# Create project
$ curl -X POST https://api.yourco.com/v1/projects \
    -H "Authorization: Bearer $TOKEN" \
    -H "Content-Type: application/json" \
    -d '{"name": "Logistics Hub", "currency": "EUR"}'

# → HTTP 201 Created
#   Location: /v1/projects/5fa4-...

# Upload CAD and run takeoff
$ curl -X POST .../projects/5fa4/cad \
    -F "file=@plans.ifc" \
    -F "ruleset=boq_quality"

# → { "positions": 248, "confidence_avg": 0.91 }

# modules/my_module/manifest.py
from openestimate.sdk import ModuleManifest

manifest = ModuleManifest(
    name="oe_regional_prices",
    version="1.0.0",
    display_name="Regional Prices",
    depends=["oe_costs"],
    hooks={
        "cost.match.pre": "adjust_for_region",
    },
)

# Drop this folder in modules/, restart.
# Marketplace auto-discovers on next boot.

The stack.

Deliberately boring choices. All open-source.

Backend

Python 3.12 FastAPI Uvicorn Pydantic SQLAlchemy Alembic PostgreSQL pandas pyarrow

Frontend

React TypeScript Vite TanStack Query AG Grid Three.js PDF.js MapLibre i18next

Ingest

ezdxf trimesh PyMuPDF openpyxl defusedxml cad2data

Formats

IFC RVT DWG DGN PDF Excel GAEB XML JSON Parquet

what teams do with it

One platform, the whole job.

These are the jobs teams run on OpenConstructionERP every day, from the first rough estimate to handover on site. Each one is a few clicks from the next, on one shared set of data.

Price the job

Build a bill of quantities on 120,000+ priced items across 9 cost bases, with assemblies and live totals as you work.

Estimating and BOQ

Measure the drawings

Take off areas, lengths and counts straight from PDFs and models, with AI suggestions you confirm, and feed them into the estimate.

Quantity takeoff

Turn models into numbers

Read quantities from BIM for 5D cost and 6D carbon, keep them linked to the model, and skip the manual re-keying.

BIM to cost and carbon

Run the tender

Package the scope, invite subcontractors and compare bids side by side, with the price spread and coverage flagged for you.

Tendering and bids

Plan and track

Schedule the works, then follow progress, earned value and change as it happens, with the plan tied back to the estimate.

Planning and controls

Run the site

Keep the daily diary, inspections, RFIs, checklists and site photos in one place, captured from the field on any device.

Site and field ops

This is only a slice. The same platform also handles the rest of the job.

Cost data and benchmarks Validation and compliance Drawings and documents Contracts and change Procurement and inventory Safety and quality Reporting and exports Client portal Analytics and dashboards

161 modules, one shared database. See them all

06 · product tour

Drawing to tender, end to end.

Seven steps from first-run to finished tender. Follow them in order or jump ahead. Each one plays a short capture from the running app.

01 · onboarding

Role-based onboarding - pick your seat type, pick language and region, starter DB loads

Create a new project - name, location, team, documents

Start the estimate - open a BOQ, add sections fast with the keyboard-first editor

Add positions - search 120,000+ priced rows from the cost database

Resources & assemblies - pivot materials, labour and equipment per position

Link the BIM model - bulk-link a group of elements into BOQ positions

Link CAD - DWG layer panel, pick entities, push lengths and areas into positions

Validate - project dashboard with validation status across BOQ sections

Tasks & follow-ups - tasks linked to BIM elements and BOQ positions

Complete estimate - totals rolled up, ready to export as GAEB, Excel, PDF or JSON

Onboarding

First run. Pick language, region and currency, the app comes with a starter cost database (55,000+ priced positions) already loaded. Zero setup, no seed-data dance.

Language
Region
Currency
Starter DB

07 · open research lineage

Built on DataDrivenConstruction.

OpenConstructionERP grows out of a decade of open construction‑tech research. The cost database, CAD parsers and ML models it depends on were built and refined inside the same open lab, and ship as part of the same ecosystem.

A note from the founder

For the past ten years I’ve worked on resource management for construction projects. Along the way I got curious about how the industry’s tools came to be - from the first attempts at design automation to today’s ERP platforms - and that turned into a couple of longer pieces (“The Lobbyists’ Wars and the Development of BIM” and “The History of the BIM Map”). It’s hard to see where things are heading without a sense of how we got here.

I’ve written a fair amount on these topics over the years, and some of it found a wide readership. Alongside the writing, I’ve consulted for construction and consulting firms, developers, and software vendors on how they handle project data - treating it as the basis for decisions rather than a byproduct of them. That work let me see the industry from both sides: the people who build the tools, and the people who use them every day. A lot of those observations ended up in my book Data-Driven Construction, now available in 16 languages (datadrivenconstruction.io/books).

Two other problems kept me busy. One was helping non-developers get into proprietary file formats that were never meant to be opened. The other was finding a cleaner way to describe construction work through a resource model. Both produced free tools: the DDC CAD/BIM converters (Revit, IFC, DWG, DGN → structured data) on GitHub, and CWICR, a multilingual database of construction works and resources - over 55,000 items in 11 languages, published as OpenConstructionEstimate-DDC-CWICR.

All of it was groundwork for something I’d wanted to build for a long time: an open, modular ERP for construction. The latest generation of tooling finally made it practical to pull the methodology, data models, and earlier implementations together into one platform. It’s now public and open source.

In my experience the best ideas tend to come out of conversation - and out of disagreement. If the questions around construction’s move toward “Uberization,” and toward more transparent cost and time estimation, are interesting to you, I’d be glad to have you in that discussion.

Artem Boiko

founder, datadrivenconstruction.io

Engineers, contractors and consultancies - clients and users of DataDrivenConstruction

A snapshot of the construction, engineering and infrastructure teams that have explored the OpenConstructionERP demo and worked with DataDrivenConstruction's open tools, datasets and workshops, across Europe, North America, MENA, APAC and Australasia.

AECOM

Drees & Sommer

VINCI Energies

Lindner

Artelia

bechtle

Merck

RBS wave

AECOM

Drees & Sommer

VINCI Energies

Lindner

Artelia

bechtle

Merck

RBS wave

Shapemaker

Scholze-Thost

VRAME

AXIA Energia

AFRY

Hofschröer

TDF

Renaissance Construction

Shapemaker

Scholze-Thost

VRAME

AXIA Energia

AFRY

Hofschröer

TDF

Renaissance Construction

Hyundai AutoEver

Sintagma

Trafikverket

TMM Group

Dar Al Riyadh

pbs Ingenieure

ZPP

SCON GmbH

Hyundai AutoEver

Sintagma

Trafikverket

TMM Group

Dar Al Riyadh

pbs Ingenieure

ZPP

SCON GmbH

Most civil design files are basically data prisons. Loads of useful info, alignments, surfaces, quantities, just sitting there, locked inside formats that were never meant to play nice with anything outside their original software. I’ve wasted way too much time trying to answer simple questions like ‘how many manholes are in this job?’ or ‘what’s the volume by phase?’, only to find out the data’s buried five layers deep in a DWG or DGN. Data Driven Construction fixes that. Their converters crack open these closed formats and give you structured data you can actually use, in Power BI, in Excel, or even in an LLM prompt if you’re doing something fancy. It’s not flashy, but it’s insanely useful. If you’re trying to move beyond screenshots and PDFs and actually use your design data, this is the kind of tool that makes it possible. It’s the difference between guessing and knowing. And honestly, it’s saved me more than a few Saturday mornings.

Chris Andrew

AECOM · Digital Transformation Technical Lead & Associate Director

Be part of the movement with DataDrivenConstruction! Let’s make true freedom in data formats a reality and catalyze a new era of productivity and innovation in construction. The real and necessary journey from closed to “open” formats has not even started: True freedom in data formats, free from proprietary ties and accessible to all, is what we need to unlock innovation and collaboration across the construction industry, particularly benefiting the 99% of construction, i.e. SMEs and unchaining the sector for accelerated growth.

Prof. Dr.-Ing. Michael Bühler

Co-Owner, GemeinWerk Ventures

08 · pricing

Simple, transparent pricing.

Two paths. Run it yourself for free under AGPL-3.0, or talk to us when you need hosted support, a commercial license for the converters, or anything else that shouldn’t live in the open-source license.

Self-hosted

Free · AGPL-3.0

The full open-source platform. Run it on your infra, no strings attached.

All 120,000+ cost items
Multi-CAD ingest (DWG / RVT / IFC / DGN / DXF / GLB)
BOQ editor + validation pipeline
All 161 modules out of the box
Community support on GitHub
AGPL-3.0 license

Install free

For commercial use

Hosted & licensed

Get in touch

When you need managed hosting, commercial licensing for the converters, or anything that doesn’t fit under AGPL, tell us what you need and we’ll scope it.

Managed cloud hosting, we run it for you
Commercial license for CAD converters & cost DB
Private deployments (on-prem, air-gapped, VPC)
SSO, RBAC, SLA & priority support
Custom validation rule sets & integrations
Direct line for onboarding and roadmap requests

Universities

Free for universities - everything, not just the app.

Learning, teaching or doing research? You get the whole thing for free: the full platform, the cad2data converters and the regional cost data. Build your coursework, a thesis, even your own student startup on it.

Platform + converters + cost data Verify with your academic email Student startups count too

Get everything, free

Also free for non-profits and open-source maintainers.

You ship - you keep

Custom-built. Self-hosted forever.

Doesn't fit a tier? We design a stack tailored to your operations and hand it over with full source. Your hardware. Your data. Your rules.

FIVE LAYERS / ALL YOURS

AGPL-3.0

YOU OWN ALL OF THIS

SCALE 1:1

1read top ↓ bottom

2every layer = on your hardware

3data never leaves the dashed boundary

AGPL-3.0

your data, your laws

Your boundary - never leaves your control

L5 · TEAM

Your team

engineers, not just users · trained

5 / 5

yours

L4 · MODULES

Your modules custom

BOQ · BIM · Tasks · custom reports

built

yours

L3 · CORE

ERP core

GitHub · AGPL-3.0 · audit any line

v1.8

yours

L2 · DATABASE

PostgreSQL

pg_dump → your S3 · daily · your keys

16+

yours

L1 · HARDWARE

Your hardware

Hetzner · AWS · on-prem · air-gapped

online

yours

no vendor lock-in · no SaaS gateway

works under the world's data laws

GDPREU · UK CCPA / CPRAUS · CA LGPDBrazil PIPEDACanada PDPASingapore · Thailand APPIJapan POPIASouth Africa NIS2EU

Build 01

Custom build

FROM 4 WEEKS

Discovery → workshop → modules picked → built → deployed on your hardware. Source delivered.

4-12 weeks total
AGPL or commercial license
30 days post-launch support

Train 02

Workshops

1-3 DAYS · ON-SITE OR REMOTE

Hands-on sessions: estimating, BIM-to-BOQ, AI takeoff, GAEB pipelines. Recorded for your team library.

Up to 12 participants
Tailored agenda + exercises
Slides + recordings yours

Advise 03

Consulting

BY THE DAY · OR RETAINER

Standards mapping, cost-DB strategy, pipeline architecture, code review.

Async review optional
Outcome doc + recommendations
Roll over into a build anytime

Public workshops shown below. Many major enterprise engagements remain under NDA.

ETH Zürich FOC

Drees & Sommer

Lindner Group

OTWB

ShapeMaker

Under NDA

Digitales Bauen

Bauindustrie Bayern & TUM

BIM Cluster BW

BIM DAY GENF

Herbert Gruppe

Under NDA

Awesome workshop, Artem! Preparations are in full swing! I’m already looking forward to the hackathon in the new year! 💪🏻

Andreas Tomaschewski

Drees & Sommer · Head of Digital Transformation

What happens when you not only organize construction processes, but also analyse them intelligently? This was the topic of our workshop with Artem Boiko on “Data-Driven Construction”. The focus was on the question of how we can make better use of existing data - to make construction projects more efficient, more transparent and less error-prone. Using specific application examples, Artem showed how structured construction data can help to maintain an overview, identify supplements at an early stage and improve communication between planning and execution. Particularly exciting: how digital tools and models can already be used today to automate processes. Data-driven construction is no longer a topic for the future - we are right in the middle of it. The workshop showed how great the potential is if we work together and really make data work for us.

Stefan Traxinger

Lindner Group · Head of Department, BIM Professional

Artem Boiko delivered an outstanding presentation to the entire Shapemaker team, providing deep insights into data migration from engineering software and related topics. His expertise and clear communication made complex concepts easy to grasp, equipping our team with practical knowledge we can apply immediately. Highly recommend his services for anyone seeking clarity and actionable strategies in this space!

Evan Ramenskiy

Shapemaker · CRO & Co-founder

Ich fande DataDrivenConstruction Workshop sehr interessant. Meiner Meinung nach konnten alle folgen. Man merkt auch anhand deiner Folien wieviel Zeit, Ausdauer und Mühe du hineingesteckt hast. Auch die Live Präsentationen waren super. Das einzige was ich bemängeln würde, wäre die Anzahl der Folien, dadurch kamen zu viele slides zustande. Aber das ist meckern auf dem höchsten Niveau. Rundum war es der beste Workshop bei dem ich war. Außerdem bist du auch eine sehr angenehme Person.

Kai Schmitt

Dimexcon · Softwareingenieur für BIM Automatisierung

Die DataDrivenConstruction Schulung fand ich insgesamt wirklich spannend und sehr bereichernd. Besonders gut gefallen haben mir: der „historische“ Hintergrund zu den verschiedenen CAD-Softwares (das war spannend zu hören und hatte etwas von Investigativjournalismus); der interessante Ansatz zur Automatisierung über DataFrames; deine eigenen praxisnahen Beispiele zur Prozessautomatisierung im Bauwesen; und der Einblick in aktuelle Trends wie Claude Code und OpenClaw, du hast das Thema mit Leben gefüllt. Einziger Nachteil: Es war wirklich viel Input in nur zwei Tagen. Gleichzeitig hast du sehr gut aufgezeigt, wie wir uns selbst weiter orientieren können, zum Beispiel über das strukturierte Aufzeichnen unserer Prozesse im Miro-Board. Vielen Dank nochmal für die Schulung und den Austausch.

Philip Becker

Herbert Gruppe · Teamleiter Vorfertigung

It was a fantastic workshop with exciting content that we, and I personally, learned a lot from. Thank you for taking so much time for us. We look forward to trying out what we learned as soon as possible and incorporating it into our projects! #bleedingedge

Lukas Fuchs

D&S · BIM Manager

Tell us what you’re after. Every message gets a real reply.

I work on this project solo, so I prioritize teams that are ready to allocate real resources to a pilot, budget, timeline, a sponsor. Send the brief and I’ll get back to you within a few days.

What can we help with?*

Custom build Workshops Consulting Commercial license Partnership Other

Full name*

Work email*

Company*

Team size

Tell us about your setup or need

Reply within 1 business day · info@datadrivenconstruction.io

09 · questions

Frequently asked.

Is the core really free and open-source?

Yes. The core is AGPL-3.0 on GitHub. You can self-host forever, audit every line, fork it, or run it in production. We also offer a commercial license for enterprises that can’t use AGPL.

What hardware do I need to run it?

The core runs on a 2 GB VPS. One PostgreSQL instance is all you need for a small team. AI features (takeoff, vector search) are optional. Features degrade gracefully when AI services aren’t available.

How do I import from my existing system?

Native GAEB XML (X83 / X84 / X89), Excel and CSV import are built in. Connectors for proprietary systems ship as modules, the marketplace already has a handful, including workflow integration via n8n. Custom migrations are available via Enterprise support.

Do I need AI services to use the product?

No. The BOQ editor, validation pipeline, CAD ingest and cost database all work without AI. AI takeoff and semantic search are optional enhancements. You can bring your own model or use the hosted CV/LLM services via Pro.

Who’s behind this?

Built by Artem Boiko (solo founder of DataDrivenConstruction) with help from open-source contributors. Same person is the author of CWICR (the 55,000-item cost database shipped here) and cad2data, with 10+ years of construction-tech engineering behind both. We ship our own tools on it.

Can I contribute a module?

Absolutely. The SDK ships with a cookiecutter template, scaffold a module in one command, drop it in the marketplace when it’s ready. Good candidates: regional cost databases, ERP connectors, custom validation rule sets.

Where is my data stored? Does anything leave my server?

On your infrastructure. Projects, drawings and cost data live in your PostgreSQL and your object storage. Nothing is phoned home, no telemetry by default. If you enable hosted AI services, only the payload you send is processed; it’s opt-in per workspace and you can point the client at self-hosted models instead.

What CAD and BIM formats are supported?

DWG, DGN, RVT, IFC, DXF and GLB ingest through the cad2data pipeline into a canonical format, one schema to query, classify and cost against. PDF drawings go through the takeoff pipeline (vector extraction + OCR). New formats land as modules, not core rewrites.

How does the commercial license work?

AGPL-3.0 is fine for most internal and service use. If you embed the product in a closed SaaS, ship it inside a proprietary application, or need an explicit waiver for procurement, talk to us. Commercial terms cover that, plus priority support and enterprise SLA. No per-seat metering, no forced cloud.

Can I migrate away later?

Yes, and we mean it. Everything you put in comes back out, GAEB XML, Excel, CSV, JSON, Parquet, or a direct PostgreSQL dump. The schema is documented, the source is open; no proprietary file formats, no escrow games, no hostage data.

How often do you ship updates?

Minor releases roughly every 2-3 weeks, patch releases as needed. Changelog lives on GitHub, every tagged version has a Docker image, and migrations are reversible. You decide when to upgrade. Self-hosted means nobody forces a deploy window on you.

Which languages and regions are supported?

27 languages ship in the core i18n. Cost database labels, validation rule sets and classification trees are per-region modules, pick the ones you need, add your own. No hard-coded currency, no hard-coded date format.

Partner Program · Founding cohort

Open core. Paid on top.

OpenConstructionERP is AGPL-3.0 and free - clone, deploy, run. The commercial layer above is where partners earn: implementation, training, support, and regional / commercial licences.

80^%

Open core - free, AGPL-3.0.

Every module below ships in the public repo. Clone, run, fork. No licence fees, no per-seat metering, no expiry.

free forever

01 · plan

Estimate

scope, cost, time

◫

Projects

portfolio

☰

BOQ

assemblies

€

Costs

120k items

◷

Schedules

4D gantt

∿

Risk

⎈

Resources

crews · roles

02 · design

BIM & CAD

model in, data out

✶

Takeoff

AI auto

◈

CAD / BIM

DWG · IFC

⌗

Drawings

⊘

BCF / Issues

model defects

✓

Validation

compliance

⌬

Clash detect

model checks

03 · procure

Tender

bids, suppliers

⎋

Tenders

bid packs

⌖

Procurement

POs · approvals

⌘

Subcontractors

scopes · subs

⊠

Vendors

supplier DB

Contracts

awards

04 · execute

Site

progress, labour

⚙

Site tasks

daily

⊟

Daily log

site journal

◉

Photos

site capture

⊙

Time tracking

labour hours

▣

Inventory

materials

⛭

Equipment

fleet

05 · control

Quality & comms

checks, RFIs, safety

⦿

Quality

QA · QC

☑

Punch list

snags · defects

⊕

Safety

HSE

RFIs

requests

⊿

Submittals

approvals

06 · money

Finance

payments, change

⎔

Cashflow

forecast

↺

Change orders

variations

Payments

progress claims

⊞

Budgets

vs actuals

07 · close

Reporting

handover, KPIs

⎘

Documents

revisions

◐

Reporting

exports

▦

Dashboards

KPIs

✿

Handover

warranty

built-in modules

workflow phases

120k

cost-DB items

€0

licence fees, ever

100%

on GitHub

20^%

Partner-paid layer - where the margin lives.

Services and commercial SKUs sold by partners on top of the open core. Partners keep 25-100% depending on the line.

partners earn here

Implementation 100%

Discovery, configuration, data migration, go-live. DDC never quotes this work.

Training 100%

Workshops, certifications, custom curricula. Branded by you, billed by you.

Support & SLA 100%

Production support, incident response, monitoring. Your team, your retainer.

Commercial licences 25-65%

OCERP commercial licence, CWICR cost DB and cad2data converters (DWG · RVT · IFC · DGN). Resold by partners at tier rate.

Custom modules 100%

Bespoke modules built per client - BIM connector, country cost matrix, ERP bridge. Your team, your timeline.

Become a partner Read full program

120k+ cost items · 161 modules · Open-source ERP for construction

How the core modules work

Not just a list of features. See what each one actually does.

A set of the flagship modules, each shown as a short loop of its core workflow - the same idea you act out the first time you open it.

BOQ editor

Type a position, quantity x rate fills in, the total rolls up live.

PDF / CAD takeoff

Trace a wall on the drawing, the measured length drops into a position.

BIM to BOQ

Select model elements, their quantities flow straight into priced lines.

Cost database

Search 120,000+ priced positions across 9 cost bases, the matched rate lands on your line.

Schedule (4D)

Tasks roll out as Gantt bars; the critical path threads through them.

AI estimate

Drop a photo or PDF; a scoped, priced first-pass estimate comes back.

Construction control

Inspections clear the hold point, then the handover is signed off.

Documents and transmittals

Issue a controlled revision; each recipient is tracked until acknowledged.

Procurement

One RFQ reaches vendors; the lowest quote is awarded a purchase order.

Safety

Clear the permit-to-work checklist, then pin an observation on the site plan.

Field and daily diary

Capture weather, crew and progress on site; it syncs into the project log.

Point cloud to BIM

Sweep the scanned points; clean model surfaces resolve from the cloud.

Schedule risk

Thousands of simulated runs build an S-curve; read the P50 and P80 dates.

Portfolio

Several projects roll up into one live set of cross-project KPIs.

Change intelligence

Open changes rank by urgency; the most urgent routes to whoever owes the next move.

Earned value

Planned, earned and actual cost track together; the variance reads off at the data date.

Stop fighting your tools.
Start building.

Download the free desktop app, or install from source. Run on your laptop, VPS, or the cloud of your choice. Self-host forever, or let us do it.

Download the app Windows, macOS, Linux - free and open source Apple Linux

Or install from source

pip install openconstructionerp

docker run -p 8080:8080 ghcr.io/datadrivenconstruction/openconstructionerp

One command and the full ERP is running. PostgreSQL is built in, nothing else to set up. See the install docs.

No credit card required Self-host on your infra AGPL-3.0 forever

Practice atlas · the deeper view

Where to look after the homepage.

Four reference pages built on what OCERP actually ships in v8.6.0 - code‑level audited, no marketing fiction. Take the assessment to find your starting point, then go deeper into practices, industries and standards.

Free · 8 minutes · no sign‑up

Start with the maturity assessment.

11 questions across 5 dimensions - estimating, BIM/CAD, cost data, validation, openness. Get a per‑dimension score and three prioritised next steps before you pick a practice. Print or save as PDF.

                ▸ Sample result: Established · 27 / 44 · 61% maturity
              

Start the assessment ▸ Returns a per‑dimension chart + 3 prioritised next steps

▸ P‑01 .. P‑05

Practice areas

5 disciplines with platform vs partner column per practice. What ships in v8.6.0, what's still partner work.

161 modules BIM · Cost · Takeoff Validate · Tender

▸ S‑01 .. S‑05

Industry sectors

5 sectors with real pains mapped to what platform does today + honest gap. Residential through Heavy & Energy.

Per‑sector fit Honest gaps

▸ Code‑audit

Standards reference

Every standard with a registered reader, writer or validator in v8.6.0. 46 rules · 5 packs. Roadmap items called out separately.

IFC · GAEB · BCF DIN · NRM · CSI

One open platform for every construction app

161 built-in modules

Fits the tools you already run.

Accounting and ERP

BIM and CAD authoring

Document and cloud storage

BI and reporting

Project scheduling

Automation and webhooks

127 playbooks. Open one and follow it.

Get the real desktop app, free.

What you actually get

The whole platform, not a trial

It runs on your own machine

Nothing to maintain

Install via pip or Docker

See it work. In one take.

What you get when you install it.

One platform, shaped to how you build.

Nine cost bases. Every position built from resources.

Pick a national base - the same four works, each built from its own resources and article codes.

The repo, in the open.

Star the repo, shape the roadmap.

Contributors

People who've already starred the repo.

Marks we can honestly stand behind.

Skip the sales call. See it work.

How it compares to what you're using now.

Start with the whole ERP. Then build the rest yourself.

161 modules to start

Your own modules

Hooks and an event bus

A shared marketplace

In-app templates

Add a module. Remove one. No rebuild.

It's a module system, not a monolith.

The stack.

One platform, the whole job.

Price the job

Measure the drawings

Turn models into numbers

Run the tender

Plan and track

Run the site

Drawing to tender, end to end.

Onboarding

Built on DataDrivenConstruction.

Simple, transparent pricing.

Free for universities - everything, not just the app.

Custom-built. Self-hosted forever.

Custom build

Workshops

Consulting

Tell us what you’re after. Every message gets a real reply.

Frequently asked.

Get product updates straight in your inbox.

Open core. Paid on top.

Open core - free, AGPL-3.0.

Partner-paid layer - where the margin lives.

Not just a list of features. See what each one actually does.

BOQ editor

PDF / CAD takeoff

BIM to BOQ

Cost database

Schedule (4D)

AI estimate

Construction control

Documents and transmittals

Procurement

Safety

Field and daily diary

Point cloud to BIM

Schedule risk

Portfolio

Change intelligence

Earned value

Stop fighting your tools. Start building.

Where to look after the homepage.

Start with the maturity assessment.

Practice areas

Add a module. Remove one.
No rebuild.

Stop fighting your tools.
Start building.