Family-reunification housing: the minimum floor area
Choose your town’s zone and the number of people: the calculator gives the living area required and the gap with your home.
Checked by Radif Partners · Editorial policy · Method
Minimum floor area required
44 m²
Your home is large enough
| Minimum floor area for the household | 44 m² |
| Your home’s floor area | 45 m² |
| Housing | large enough |
| Margin | €84 |
| Stamps for 3 family member(s) | €450 |
| No answer means refusal on | 13 April 2027 |
Family benefits, RSA, ASPA, ASS, ATA and AER do not count. Each month uses the minimum wage in force on the 1st: an application covering months of 2025 has a lower threshold than today’s minimum wage. The mayor also checks the home is fit to live in.
Calculation and sourcesThe home that will house your family must be "normal" for a comparable family in the same region, fit to live in and equipped, and reach a minimum living area that depends on the town’s zone. For a couple or two people, the requirement is 22 m² in zones A bis and A, 24 m² in zones B1 and B2 and 28 m² in zone C. Add 10 m² for each extra person up to eight people, then 5 m² for each person beyond. A family of five in a zone A town therefore needs at least 52 m², a family of seven in zone C 78 m², a single parent with two children in zone B 34 m². The mayor checks these conditions and authorised officers may visit the home. If you have not moved in yet, a housing-availability certificate (form cerfa no. 11437) describes the planned home.
The floor-area rule
The official family-reunification page sets the total living area by geographical zone, using the zoning of the order of 1 August 2014. The base figure is for two people; each additional person adds 10 m² up to eight, then 5 m². The calculator applies this scale to the household you enter and compares it with your home’s area. The underlying rules are in CESEDA (immigration code), articles L434-1 to L434-12 and articles R434-1 onwards.
| People | Zones A bis and A | Zones B1 and B2 | Zone C |
|---|---|---|---|
| 2 | 22 m² | 24 m² | 28 m² |
| 3 | 32 m² | 34 m² | 38 m² |
| 4 | 42 m² | 44 m² | 48 m² |
| 5 | 52 m² | 54 m² | 58 m² |
| 6 | 62 m² | 64 m² | 68 m² |
| 7 | 72 m² | 74 m² | 78 m² |
| 8 | 82 m² | 84 m² | 88 m² |
| 9 | 87 m² | 89 m² | 93 m² |
| 10 | 92 m² | 94 m² | 98 m² |
Beyond eight people the scale slows down: a family of ten in zone A needs 92 m². The figure is the living area (surface habitable) stated in the lease or deed of sale, not the floor space of outbuildings or annexes.
Fitness for living and proof
The home must also be decent within the meaning of the decree of 30 January 2002 on decent housing. Depending on your situation, the file includes the lease and latest rent receipt, the title deed, or a statement from the person housing you giving the length of stay allowed. Proof of address less than three months old is always required. Income is examined at the same time: see the income calculator.