Gross volume (BRI)
Have your building volume calculated professionally.
Precise volume calculation to DIN 277 — the basis for financing, valuation, planning and documentation.
- To DIN 277
- Incl. GFA & gross usable area
- Calculated per level
- €50 net per level
Cubature and BRI calculation
When area alone is not enough
For many valuation questions the living area is not sufficient — what matters is the volume. Gross volume (BRI) to DIN 277 describes the enclosed space of a building in cubic metres and is therefore a central reference figure in the asset value method, for insured sums and in cost planning. Accordingly, banks, surveyors, insurers, architects and property developers request it regularly. mkmfloor determines the gross volume as well as the gross floor area and gross usable area per level — based on the same survey as your other documents.
When you need a volume calculation
- Financing
- Property valuation
- Insurance
- Documenting the existing building
- Property development
- Conversion or extension
- Buying or selling larger properties
How it works
- 1
1. Capture
Your property is captured by app scan or an on-site survey.
- 2
2. Evaluation
We evaluate the geometry per level — floor areas and heights.
- 3
3. Calculation
Determination of gross volume, gross floor area and gross usable area to DIN 277.
- 4
4. Delivery
You receive the breakdown as a PDF, on request with surveyor confirmation.
What is included
- Calculation to DIN 277
- Gross volume (BRI) in cubic metres
- Gross floor area (GFA) per level
- Gross usable area per level
- Digital evaluation based on the survey
- Traceable breakdown for each floor
- Output as a PDF
- Optional: surveyor confirmation
What does the BRI calculation cost?
We charge €50 net plus VAT per level for the calculation of gross volume, gross floor area and gross usable area. Set the number of levels in the price calculator and see the price instantly.
View the sample document (PDF) →
Calculate my building volumeFrequently asked questions
What is gross volume (BRI)?
Gross volume is the enclosed volume of a building in cubic metres, measured at its outer boundary surfaces. It is determined in accordance with DIN 277 and therefore describes the size of a building as a volume rather than an area.
What is the BRI calculation needed for?
Typically for valuations and expert reports using the asset value method, as well as a reference figure for insurance and cost planning.
How does it differ from a living space calculation?
A living space calculation under the German WoFlV determines the chargeable living area in square metres. The BRI calculation under DIN 277 determines the volume of the building in cubic metres — two different reference figures for different purposes.
Are the gross floor area and gross usable area included?
Yes. Together with the gross volume, we also calculate the gross floor area (GFA) and the gross usable area per level.
How is the BRI calculation charged?
Per level, at €50 net plus VAT. Unlike most other items, only the number of floors counts here — not the number of residential units.
Ready to get started?
Calculate your price now or contact us for individual advice.