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Living Space Calculator

Calculate the countable living space of your apartment according to the German Living Space Ordinance. With proportional factors for balconies, terraces, and sloped ceilings.

Countable Living Space

48.75 m²

Total Area

51 m²

Wohnzimmer
20 m²
Schlafzimmer
14 m²
Kueche
7.5 m²
Bad
5 m²
Balkon
2.25 m²
= Total countable
48.75 m²

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What Is the Living Space Ordinance?

The German Living Space Ordinance (WoFlV) has regulated the calculation of living space since 2004. It defines which rooms and proportional areas count toward living space. Accurate calculation is essential for rental agreements, utility cost statements, and compliance with rent control regulations. Both landlords and tenants should regularly verify the living space.

Understanding Counting Factors

Not all areas count fully toward living space. Rooms with sloped ceilings are counted proportionally based on headroom: areas below one meter do not count at all, those between one and two meters count at half. Balconies and terraces are typically counted at 25 percent, up to 50 percent for premium quality. Unheated conservatories are counted at 50 percent.

Living Space and Tenancy Law

Living space forms the basis for rent calculation. If the actual living space deviates by more than 10 percent from the area stated in the lease, the tenant may proportionally reduce the rent. Utility costs are also frequently allocated based on living space. Under rent control regulations, rent is assessed per square meter of living space.

Tips for Accurate Measurement

Measure each room at the interior walls at floor level. Niches and bay windows deeper than 13 centimeters count toward living space. Door openings and window sills are not included. For sloped ceilings, measure at multiple heights. When in doubt, a certified surveyor can determine the living space according to the WoFlV with binding authority.

Frequently Asked Questions

Living space includes all rooms within the apartment that are suitable for habitation. This encompasses living rooms, bedrooms, kitchens, bathrooms, hallways, and storage rooms. Balconies, terraces, and loggias are counted proportionally depending on the regulation. Cellars, attics, and garages typically do not count as living space.
Under the German Living Space Ordinance (WoFlV), balconies, loggias, roof gardens, and terraces are typically counted at 25 percent. For high-quality finishes or favorable locations, the factor can be increased to 50 percent. Unheated conservatories count at 50 percent.
Floor area is the total surface within the exterior walls. Living space is smaller because wall surfaces, chimneys, pillars, and areas under sloped ceilings with low headroom are deducted. Rooms below one meter in height are excluded entirely, those between one and two meters count at half.
Living space is the basis for rent calculation, utility cost allocation, and rent control regulations. An incorrectly stated living space can lead to rent reductions or back payments. If the deviation exceeds 10 percent, the tenant may proportionally reduce the rent.

All calculations are for general informational purposes only. Not financial, tax, or legal advice. No guarantee of accuracy. Use at your own risk. Full disclaimer