Transitional projects: check the older-rule eligibility note.
The requirement
For new-rule projects, BFS 2024:8 sets a room-height test with no fixed metre value. Older-rule projects may still use the transition route linked above. The current code only asks that the height be “sufficient” for health and for the room’s use.
No fixed ceiling height. The rule sits in BFS 2024:8 (Hygien, hälsa och miljö samt hushållning med vatten och avfall), Kap 5 §1. It says room height must be “sufficient”. It must not harm people’s health. It must suit what the room is used for. You weigh the floor area, the number of people, how long they stay, what they do, and how sensitive they are. No mm or m figure appears anywhere in the text.
This change was made on purpose. The old BBR fixed a minimum of 2.40 m. That number was not cut down or renamed. It was removed. The older figure may still apply to an eligible transitional project.
No minimum room area either. BFS 2024:11 (Bostäders lämplighet för sitt ändamål) sets no fixed m² figure. Not for bedrooms, not for any room type. The test is fit, not size. Four things must work together and be “reasonable”. They are the home’s size, who it is meant for, its fittings, and its need for rooms you can close off. Check the project and local rules too.
The hard numbers: light and ventilation
The new rules also set daylight and airflow checks.
Natural light. BFS 2024:8, Kap 4 §1 asks for a daylight factor of at least 1.0%. You must hit it over at least half of the combined assessed floor area of every “vistelserum” in the home as a whole. A vistelserum is a living space: a room for sleep or rest, togetherness, cooking or meals. A toilet or storeroom does not count. The method changed in 2025. It used to be a per-room test, taken roughly at a mid-room point. Now it is a whole-dwelling total.
Ventilation. BFS 2024:8, Kap 3 §5 sets:
| Ventilation type | Figure |
|---|---|
| Outdoor-air flow, whole dwelling | ≥ 0.35 l/s per m² floor area |
| Outdoor-air flow, per room | ≥ 4.0 l/s per person |
One more rule here has no number. You must be able to boost the airflow for a short time, for cooking fumes and the like, “if not unnecessary”. No fixed boost figure is given.
Related
- Part of the Swedish building regulations hub. It covers why 1 July 2025 changed so much of what is fixed, and what survived.
- Building the stairs, and need the headroom figure? See Swedish stair & guard rules. Headroom is a separate figure again. It is still fixed at 2.00 m.
Sources
- BFS 2024:8 — Boverkets föreskrifter om hygien, hälsa och miljö samt hushållning med vatten och avfall, Kap 5 §1 (room height, no fixed minimum), Kap 4 §1 (daylight factor) and Kap 3 §5 (ventilation minima). Read it at boverket.se.
- BFS 2024:11 — Boverkets föreskrifter om bostäders lämplighet för sitt ändamål, Kap 1 §1, Kap 2 §§1, 7–8 (dwelling sizing — proportionality test, no fixed room area). Read it at boverket.se.
Read this first. These figures reflect BFS 2024:8 and BFS 2024:11, both in force since 1 July 2025 — and, since the one-year transition window for old BBR expired 1 July 2026, the basis for new cases outside the transitional provisions. Check eligibility before using the old BBR room-height rules. These regulations contain binding duties. Always confirm the current, in-force text on boverket.se before you rely on any figure here.
Related building rules
More Sweden rules
Rooms in other countries
- Minimum Ceiling Heights (NCC 2025)
- US Minimum Ceiling Heights (IRC R305)
- NZ Ceiling Heights: Building Code and Housing Rules
- Does the UK Have a Minimum Ceiling Height?
- Canada Minimum Ceiling Heights (NBC 9.5)
- Does Ireland Have a Minimum Ceiling Height?
- France's Minimum Ceiling Height: the 2.20 m Décence Rule
- Minimum Room Height by Bundesland: Germany Land by Land
- Does Spain Have a National Minimum Room Height?
- Does Indonesia Have a Minimum Ceiling Height?
- Japan's Minimum Ceiling Height: 2.1 m, Fixed
- Delhi Room and Stair Rules Under UBBL 2016
- Norwegian Room Height, Light & Ventilation Rules (TEK17)