Housing
| House, standard | 1,440 – 1,960 €/m² of floor area |
|---|---|
| House, high-end or architect-designed | 2,060 – 3,600 €/m² |
| Apartments, standard development | 1,650 – 2,270 €/m² |
| Apartments, social housing | 1,540 – 2,060 €/m² |
| Apartments, high-end Paris | 2,880 – 4,630 €/m² |
| Heavy residential refurbishment | 1,240 – 2,570 €/m² according to initial condition |
Commercial
| Offices, standard open plan | 1,540 – 2,060 €/m² of floor area |
|---|---|
| Offices, certified | 1,850 – 2,570 €/m² |
| Retail, bare shell | 820 – 1,440 €/m² |
| Budget hotel, excluding decoration | 1,650 – 2,270 €/m² |
| Four- or five-star hotel | 2,570 – 5,150 €/m² |
Public facilities
| Primary or secondary school | 1,750 – 2,470 €/m² of floor area |
|---|---|
| Sports hall | 1,240 – 1,850 €/m² |
| Library or media centre | 2,060 – 3,090 €/m² |
| Care home | 2,570 – 3,600 €/m² |
| Indoor pool, excluding the tank | 3,090 – 5,150 €/m² |
Industry and logistics
| Simple logistics warehouse | 410 – 720 €/m² of floor area |
|---|---|
| Standard industrial building | 620 – 1,030 €/m² |
| Mixed offices and workshop | 930 – 1,440 €/m² |
| Clean room or pharmaceutical | 5,150 – 15,450 €/m² according to the constraints |
The correcting factors to apply
Geographic correction
| Inner Paris | + 25 to 40 % |
|---|---|
| Inner Paris region | + 15 to 25 % |
| Major cities: Lyon, Bordeaux, Nantes | + 5 to 15 % |
| Provincial, the national reference | Base, 0 % |
| Remote rural areas | + 5 to 15 %, through logistics and travel costs |
| Overseas territories | + 30 to 80 % according to the island and local materials |
Correction for the level of specification
| Economical | − 15 to − 25 % against standard |
|---|---|
| Standard | Base, 0 % |
| High-end | + 20 to + 50 % |
| Very high-end or prestige | + 50 to + 150 % or more |
What the cost per square metre does not include
To move from a works cost to a total cost, add:
- Design fees, architect, engineers, coordinator, economist: 10 to 16 % of the works
- Technical control and health and safety coordination: 1 to 2 % of the works
- Structural warranty insurance: 1 to 3 % of the works
- Development taxes and contributions to roads and services
- The cost of the land and the acquisition fees
- Finance costs, chiefly interest during construction
ℹ A rule of thumb: to move from a works cost to a total cost, multiply the works cost by a coefficient of 1.35 to 1.60 according to the type of operation, higher in property development with land acquisition, lower where the client builds directly on land already owned.
Related articles: How to estimate the cost of a project · Expenditure items on a construction site
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Reference basis of the figures
These bands are orders of magnitude for framing, and their reference market is the Paris region. They serve to place a budget at the earliest stages and to compare building types with one another. They replace neither a tender exercise nor an estimate prepared on drawings, and they are not a record of prices actually charged.
The bands on this page are stated in January 2026 values. They were updated from January 2024 values using the BT01 all-trades index published monthly by INSEE on its 2010 base: 130.8 in January 2024, 134.7 in January 2026, a rise of about 3 %.
To bring them forward, apply the usual revision formula: updated value = page value × (BT01 for the month in question / 134.7). The index has kept rising since: it stood at 138,3 in June 2026, the last value published when this page was checked, that is 2,7 % above the reference base.
BT01 measures contractors' input costs, wages and social charges, materials, plant and energy, not the prices actually tendered. The two series diverge as soon as margins move: over 2024 the BT01 rose by 0.9 % while the construction cost observed by the SDES survey rose by 2.1 %. These bands remain orders of magnitude, to be set against an estimate specific to the project.
The bands are indicative for France and can vary significantly. Consult a construction economist for an estimate adapted to your project.
Sources: the BT construction cost indices published monthly by INSEE on its 2010 base, used to update the figures · construction cost statistics from SDES, the statistical service of the ministry responsible for construction · regulatory texts published in the Journal officiel and consolidated on Légifrance for the requirements cited.