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Presupuestación y costes

Presentar los quadros de la NBR 12721 para una incorporação

Mida las áreas que define el estándar, construya el custo global para el padrão del edificio, sitúelo frente al CUB publicado, elabore los quadros, lleve el coste a cada unidad por su fração ideal, y ensamble el memorial para el registro.

6 pasos20 minPromotor / clienteConsultoría de costes / QSEstudio de proyectos / ingeniería

Cómo funciona, paso a paso

6 pasos a lo largo de la plataforma - qué hacer en cada uno y por qué importa.

1

Measure the areas the way the standard defines them

Cubicación

Take off the private, the common and the total real area of every unit, then convert them into the equivalent area of construction the way NBR 12721 prescribes, so that covered and uncovered work are weighted rather than added. Keep both sets of figures, because the quadros ask for both.

Por que: Every figure downstream is a rate multiplied by one of these areas, so an area computed the ordinary way rather than the way NBR 12721 defines it is wrong in the same direction on every unit and in the registered document. Corrections after registration are a rectification at the registry office, not an edit.

EntradaApproved architectural drawingsUnit schedule of the buildingResultadoReal areas per unitEquivalent area of construction
2

Build the custo global for the padrao you are building

Base de datos de costes

Price the building at the standard of finish it is actually specified to, keeping the structure, the finishes and the services apart, and separate what the standard treats as the building from what it treats as land, licences and marketing. Read out the cost per square metre of equivalent area.

Por que: The rate per square metre is the figure everyone compares, and it only means anything when the numerator and the denominator were built to the same rules. Costs that do not belong to the construction inflate the rate and make the building look expensive against every published reference, which is a conversation with a bank rather than with an estimator.

EntradaSpecification and standard of finishEquivalent area of constructionResultadoCusto global of the buildingCost rate per square metre
3

Place the rate against the published CUB

Índice de precios

Load the CUB published for the state and the building type that matches yours, put your rate beside it, and write down what the difference is made of: the items the CUB expressly leaves out, such as foundations, lifts and external works, and the specification choices that are genuinely yours.

Por que: The CUB is computed under NBR 12721 for a standard project and deliberately excludes several real costs, so a building priced honestly is expected to sit above it. What has to exist is the sentence saying by how much and why. Without it, the same gap reads to a buyer or an auditor as a padded cost rather than as foundations.

EntradaCost rate per square metrePublished CUB for the stateResultadoDifference against the CUBReason recorded for the gap
4

Produce the quadros in the form the standard prescribes

Informes

Generate the numbered quadros NBR 12721 lays out, from the areas of each unit through to the cost of construction and its distribution, and check that the same total appears identically in every quadro that carries it. Keep the reference month of the cost on every sheet.

Por que: The quadros are read by a registrar who checks them against each other rather than against the building, so an internal disagreement between two sheets stops the filing even when both figures are individually defensible. Generated from one source they agree by construction, which is the only reliable way to make a set of twelve tables consistent.

EntradaCusto global of the buildingReal areas per unitResultadoQuadros report in the prescribed formTotals agreeing across quadros
5

Carry the cost onto each unit by its fracao ideal

Desarrollo inmobiliario

Distribute the construction cost across the units in proportion to the fracao ideal recorded for each one, and hold that distribution beside the sale prices so the margin on a small unit can be read separately from the margin on a penthouse.

Por que: A development sold at one price per square metre across every unit is usually selling the ground floor at a loss and does not know it, because the cost per square metre is not flat once parking, terraces and common areas are allocated. The filed distribution is the only version of that arithmetic both the buyer and the developer are looking at.

EntradaQuadros report in the prescribed formFracao ideal per unitResultadoCost carried onto each unitBasis for the sale price
6

Assemble the memorial de incorporacao for registration

Documentos

Bring the quadros together with the title, the approved drawings, the licences and the technical responsibility notes into the set that goes to the registry office, and keep the filed version untouched afterwards as its own record.

Por que: Lei 4.591 of 1964 makes registration of the memorial the condition of selling units that are not built, so this set is what allows the sales to start, and every buyer contracts against the version that was filed. A working copy that keeps evolving in the same folder is how a later dispute finds two memorials, and only one of them is the one anybody agreed to.

EntradaQuadros report in the prescribed formTitle, licences and drawingsResultadoMemorial assembled for filingFiled version kept as issued
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El mercado para el que está escrito este caso

Brasil

Todo en este caso sigue la forma en que la obra se mide, se valora y se paga en este mercado. Los documentos, el desglose de costes y las reglas de pago son los que se usan allí, no una versión genérica.

Normas que sigue

  • Lei 14.133
  • SINAPI
  • ABNT NBR 12721

No tienes que configurar nada de eso a mano. La primera vez que abres la plataforma te pregunta en qué mercado trabajas. Elige este y ajusta el idioma de la interfaz, carga la base de costes correspondiente, registra la clasificación de costes y añade un proyecto de ejemplo que puedes abrir enseguida.

Las comprobaciones de este mercado también vienen con la plataforma. Actívalas una vez y un presupuesto al que le falte algo que el mercado espera queda señalado mientras trabajas en él, no después de presentar la oferta.

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