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Calculation tool

How many m² you get
as a landowner.

If you give your land for construction, how much built area do you get in return? Enter three numbers and get the answer instantly.

Inputs

Land areayour plot
m²
Building coefficient2.5×
times
How many times more floor area may be built than the land area. It is set by the municipality's regulatory plan — if you don't know it, ask the municipality or contact us.
Your share (owner)28%
%
The part of the built area that belongs to you under the agreement. The rest belongs to the builder.
Price per m² (optional)for an estimate
€ / m²
Leave 0 if you don't want a monetary estimate.
You get
350m²
built area — approximately 4 apartments of 75 m²
OWNER 28%
BUILDER 72%
Land area500 m²
Total permitted for construction1.250 m²
Owner's share350 m²
Builder's share900 m²
This calculation is indicative and based on the gross building area. Final figures depend on the regulatory plan, building conditions, the net saleable area and the specific terms of the contract.

How the calculation works

01

Land × coefficient

The plot area is multiplied by the building coefficient. This gives the total floor area that may be built on that land.

02

Split by percentage

The total is split between you and the builder according to the percentage agreed in the contract. Enter the percentage you are interested in and see the result instantly.

03

Result in apartments

The area you get is converted into an approximate number of apartments, assuming an average apartment of 75 m².

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