The BT01 2024 index is France’s national construction index (all trades).
It measures changes in the cost of factors of production in the building industry and is the official reference for updating and revising construction contract prices.
The Index was created by a decree published in the Official Journal on December 20, 2014 (base 100 = 2010 average) and is published monthly by INSEE. It thus succeeds the Index of Building and Public Works (bases 1974 and 1975), which has been discontinued.
Contents
BT01 index values history in 2024
| Period | Date of publication (or forecast) in the official journal | Index value | Variation in % / previous month | Variation in % over 12 consecutive months |
| January 2024 | 03/22/2024 | 130.8 | +0.15% | +1.87% |
| February 2024 | 04/17/2024 | 131,0 | +0.15% | +1.00% |
| March 2024 | 05/16/2024 | 130.9 | -0.08% | +0.23% |
| April 2024 | 06/18/2024 | 131.0 | +0.08% | +0.38% |
| May 2024 | 07/16/2024 | 131.3 | +0.23% | +3.88% |
| June 2024 | 08/14/2024 | 131.2 | -0.08% | +0.69% |
| July 2024 | 09/14/2024 | 131.2 | No change | +1.16% |
| August 2024 | 10/16/2024 | 131.7 | +0.38% | +0.84% |
| September 2024 | Publication around November 18, 2024 | 131.2 | -0.38% | +0.77% |
| October 2024 | Publication around December 18, 2024 | UNK | N/A | N/A |
| November 2024 | Publication around January 18, 2024 | UNK | N/A | N/A |
| December 2024 | Publication around February 18, 2024 | UNK | N/A | N/A |
The values in this table will be updated as the index is published in 2024. For previous years, please consult our page on the history of the BT01 index.
Use of the BT01 2024 index:
Rule:
The price of the service of the contract of services will be revised at each expiry of the agreement according to a formula that integrates the evolution of the BT01 Index.
Formula:
[New price] = [old price] X [Known reference index BT01] / [Reference index BT01]
Be careful not to confuse the BT01 Index with the Construction Index or the Rent Reference Index, which are used respectively to revise rents for private individuals and leases for professionals.
BT01 Index History
All the values of the BT01 index since 2006:
History of the BT01 building index — All trades – Base 2010:
Frequently Asked Questions about the BT01 Index
We’re interested in your opinion on BT01 index evolution:
Tell us in the comments. THANKS.
