Loi Carrez floor area survey in Bordeaux

When is a loi Carrez survey compulsory?

The loi Carrez applies when you sell a unit in a copropriété (shared-ownership building or estate): a flat, a house within a copropriété, or other premises. The private floor area must be stated in the preliminary contract and in the final deed.

The measurement commits the seller directly. Using a certified, insured professional protects you if the buyer challenges the figure.

What we measure and what we exclude

The Carrez area is the floor area of enclosed, covered rooms, after deducting walls, partitions, steps and stairwells, ducts, and door and window recesses. Any part with a ceiling height below 1.80 m is not counted.

Units or parts of units under 8 m², cellars, garages and parking spaces are also excluded. The report gives the area room by room and lists the excluded areas, which is useful for your listing.

Validity and the cost of an error

A loi Carrez survey has no expiry date. It remains valid as long as no works change the floor area: a partition added or removed, a loft converted, a mezzanine built. After works, it must be redone.

If the actual area is more than 5% smaller than the figure in the deed, the buyer can obtain a price reduction in proportion to the shortfall. The buyer has one year from signing the final deed to act. An accurate survey removes that risk.

Shared-ownership buildings in Bordeaux and the metropolitan area

Bordeaux stone buildings hold surprises: sloping ceilings, mezzanines, attic rooms, thick walls and deep window recesses. In Chartrons, Caudéran or La Bastide, older flats split into several units need precise ceiling height readings.

Newer developments in Mérignac, Pessac, Talence or Bègles raise other questions: loggias, terraces, parking spaces. In the Médoc and Lacanau, second homes in shared ownership often have mezzanines where only part of the floor reaches 1.80 m.

Timescales, quotes and why choose CBDI

The price depends on the size and layout of the unit. We send you a free quote within 24 hours. If you are selling, we take the measurement during the same visit as your other compulsory property surveys.

CBDI is based at 26 avenue de Bellefort in Mérignac. Qualixpert-certified surveyors, professional insurance, visits within 24 to 48 hours in Bordeaux, the metropolitan area, the Médoc, the Arcachon Bay, the Graves and the Libournais. Reports within 48 hours. Phone: +33 6 98 13 41 53.