What is a habitable area?

A habitable area is a term from Dutch building regulations (verblijfsgebied). The Besluit bouwwerken leefomgeving (Bbl) defines it as a use area, or part of one, intended for people to stay in. In practice it is the part of a home or building where you live, sleep, cook or work, and where the strictest requirements for ceiling height, daylight and ventilation apply. Spaces such as the bathroom, toilet, hallway and stairs are generally not habitable area. A habitable area contains one or more habitable rooms. The Bbl has applied since 1 January 2024 and replaced the Bouwbesluit 2012. Other countries use their own definitions, so the figures below apply to the Netherlands only.

Requirements for a new home in the Netherlands

Share: at least 55% of the usable floor area must be habitable area (article 4.163).
Total area: at least 18 m² of non-shared habitable area, or 15 m² for a student home (table 4.162).
Dimensions: each habitable area is at least 5 m² and 1.8 m wide (article 4.164).
Height: at least 2.6 m above the floor, or 2.2 m in a mobile home (woonwagen).
Daylight: an equivalent daylight area, determined under NEN 2057, of at least 10% of the floor area (article 4.147).
Ventilation: at least 0.9 dm³/s per m², with a minimum of 7 dm³/s (article 4.122).

Existing homes and alterations

For existing buildings (chapter 3 of the Bbl) the minimums are lower: at least 10 m² of non-shared habitable area and a height of 2.1 m. Alterations have their own rules in chapter 5; for example, the height of a habitable area may be 2.1 m instead of 2.6 m (article 5.17).

Minimum height above the floor of a habitable area under the Dutch Besluit bouwwerken leefomgeving (Bbl), in force since 1 January 2024. Applies to the Netherlands only. Existing buildings: chapter 3 of the Bbl. Alterations: chapter 5, where the height may be 2.1 m instead of 2.6 m (article 5.17). Parts under a sloping roof that are lower than the required height cannot count as habitable area, even if you can walk there.

Application

The habitable area decides whether a design passes the building regulations check. On the drawings you mark which spaces are habitable area and show that floor area, daylight and ventilation meet the rules for each one. Note that parts under a sloping roof that are lower than the required height cannot count as habitable area, even if you can walk there.

Tips

Converting a loft? Parts that are too low do not become habitable area. A dormer can make the difference.
Not the same as a verblijfsobject: that is a term from the Dutch building and address register (BAG).
In doubt? Read the current text on wetten.overheid.nl or ask the municipality for a pre-application meeting.

Related terms

Habitable room
Use area
Usable floor area
Use function
Daylight factor
Non-habitable room

Want to learn more about construction terms? Visit our knowledge base at fredsdiyplans.com.