BT01 Index for January 2023 was published officially

The BT01 Index for January 2023 was published in the official journal on 03/16/2023.

The value of the BT01 Index for January 2023 is 128.4 to 121.4 in January 2022, an annual increase of 5.77% over 12 rolling months. The January index increased by 1,26% from the previous month (126.8 in December 2022).

BT01 index variation table for January 2023

 Index BT01
January 2023
Index BT01
December 2022
Index BT01
January 2022
Value of BT01 index128.4126.8121,4
Variation in % compared to the base Up 1.26%Up 5.77%
Values and % change in the BT01 index for January 2023

Official source: Insee.

Official BT01 Index
Publication of the January 2023 index

Our index evolution table for 2023 has been updated here: BT01 Index 2023.

The BT01 Index (base 100 in 2010) measures changes in the cost of factors of production in the building industry (salaries and expenses, cost of materials, energy, etc.). It is the official reference for updating and revising construction contract prices.

The Index is published each month by INSEE with a 3-month delay. It thus succeeded the Index of the building and public works (1974 and 1975), which was stopped. Most companies in various construction trades (electricity, painting, masonry, etc.) are concerned with the BT01 Index.

Download the values of all BT indexes for January 2023:

Official publication of other BT and TP indices for January 2023

Frequently asked questions about the BT01 index for January 2023

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