Index in the Building industry - BT01 - All trades works - January 1974 = 100 - Stopped series

Time series
Date of last update : 2014-12-16

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Series heading Identifier Start date End date Periodicity Last update Select
Index in the Building industry - BT01 - All trades works - January 1974 = 100 - Stopped series 000008631 1974-01 2014-09 Monthly 2014-12-16
Building index - BT01 - All trades works (not to be used when a more appropriate index exists) - Base 2010 001710986 2014-10 2016-08 Monthly 2016-11-15

Information about the corresponding series

Following the ongoing renovation of branches, the series 8631 has been stopped and can be extended by the new series 1710986, with the connecting coefficient 8.3802. In order to extend the former series beyond September 2014, please multiply the new series' indices by the connecting coefficient.

Identifier 000008631

From :    To :   
Year Month Value
2014 September 881.6
2014 August 882.9
2014 July 881.3
2014 June 880.7
2014 May 880.8
2014 April 881.4
2014 March 881.0
2014 February 882.0
2014 January 883.5
2013 December 882.4
2013 November 880.5
2013 October 881.5
2013 September 881.2
2013 August 880.9
2013 July 880.6
2013 June 880.5
2013 May 880.5
2013 April 882.0
2013 March 884.5
2013 February 885.4
2013 January 884.6
2012 December 877.4
2012 November 874.4
2012 October 876.6
2012 September 875.3
2012 August 877.2
2012 July 875.1
2012 June 874.0
2012 May 874.8
2012 April 877.2
2012 March 875.3
2012 February 873.9
2012 January 871.9
2011 December 863.6
2011 November 862.7
2011 October 860.2
2011 September 858.3
2011 August 858.9
2011 July 858.0
2011 June 855.6
2011 May 854.4
2011 April 854.7
2011 March 853.1
2011 February 851.0
2011 January 845.8
2010 December 834.6
2010 November 830.6
2010 October 829.7
2010 September 828.3
2010 August 827.2
2010 July 827.8
2010 June 825.6
2010 May 826.1
2010 April 822.5
2010 March 814.3
2010 February 809.7
2010 January 807.2
2009 December 804.3
2009 November 803.6
2009 October 804.7
2009 September 803.0
2009 August 802.2
2009 July 800.9
2009 June 802.6
2009 May 800.3
2009 April 797.8
2009 March 796.4
2009 February 803.6
2009 January 802.9
2008 December 797.7
2008 November 799.7
2008 October 805.1
2008 September 811.7
2008 August 815.0
2008 July 815.5
2008 June 805.1
2008 May 799.5
2008 April 792.5
2008 March 787.0
2008 February 780.6
2008 January 776.8
2007 December 767.2
2007 November 765.6
2007 October 763.2
2007 September 761.2
2007 August 762.3
2007 July 760.6
2007 June 758.2
2007 May 755.9
2007 April 754.2
2007 March 749.4
2007 February 747.0
2007 January 740.5
2006 December 733.3
2006 November 734.5
2006 October 734.8
2006 September 732.7
2006 August 731.9
2006 July 728.5
2006 June 723.0
2006 May 721.6
2006 April 717.3
2006 March 713.7
2006 February 709.8
2006 January 707.2
2005 December 697.0
2005 November 696.3
2005 October 695.6
2005 September 691.5
2005 August 686.7
2005 July 683.7
2005 June 683.4
2005 May 681.5
2005 April 682.7
2005 March 683.5
2005 February 682.4
2005 January 684.2
2004 December 679.5
2004 November 680.7
2004 October 682.7
2004 September 678.9
2004 August 678.7
2004 July 675.0
2004 June 674.6
2004 May 674.6
2004 April 671.2
2004 March 664.8
2004 February 653.1
2004 January 646.8
2003 December 640.3
2003 November 640.0
2003 October 639.1
2003 September 636.7
2003 August 635.9
2003 July 634.8
2003 June 634.0
2003 May 633.4
2003 April 634.0
2003 March 633.7
2003 February 628.5
2003 January 625.6
2002 December 621.5
2002 November 619.6
2002 October 620.2
2002 September 619.2
2002 August 619.0
2002 July 616.9
2002 June 612.6
2002 May 612.1
2002 April 611.9
2002 March 608.7
2002 February 605.6
2002 January 604.6
2001 December 600.2
2001 November 599.5
2001 October 598.9
2001 September 598.8
2001 August 597.7
2001 July 597.9
2001 June 596.1
2001 May 594.4
2001 April 593.4
2001 March 589.4
2001 February 588.3
2001 January 587.2
2000 December 584.5
2000 November 584.3
2000 October 584.0
2000 September 583.5
2000 August 580.7
2000 July 579.7
2000 June 579.1
2000 May 577.8
2000 April 576.7
2000 March 576.1
2000 February 573.2
2000 January 570.6
1999 December 566.3
1999 November 564.3
1999 October 564.7
1999 September 563.1
1999 August 562.5
1999 July 561.5
1999 June 558.0
1999 May 557.6
1999 April 556.7
1999 March 552.9
1999 February 551.7
1999 January 550.9
1998 December 548.8
1998 November 548.3
1998 October 549.4
1998 September 549.5
1998 August 550.5
1998 July 551.8
1998 June 552.6
1998 May 553.0
1998 April 553.3
1998 March 553.7
1998 February 552.4
1998 January 551.3
1997 December 549.9
1997 November 549.7
1997 October 548.8
1997 September 548.1
1997 August 547.4
1997 July 546.7
1997 June 544.9
1997 May 543.3
1997 April 540.8
1997 March 539.7
1997 February 539.4
1997 January 538.3
1996 December 538.6
1996 November 537.6
1996 October 537.3
1996 September 536.4
1996 August 534.4
1996 July 533.9
1996 June 533.7
1996 May 533.2
1996 April 532.9
1996 March 531.9
1996 February 531.7
1996 January 531.2
1995 December 529.7
1995 November 529.1
1995 October 529.8
1995 September 529.5
1995 August 529.5
1995 July 529.4
1995 June 529.7
1995 May 529.8
1995 April 529.7
1995 March 528.8
1995 February 527.8
1995 January 525.6
1994 December 520.0
1994 November 519.1
1994 October 518.3
1994 September 515.8
1994 August 513.9
1994 July 511.8
1994 June 512.6
1994 May 512.6
1994 April 511.1
1994 March 509.6
1994 February 507.7
1994 January 506.4
1993 December 502.2
1993 November 501.4
1993 October 499.6
1993 September 500.8
1993 August 500.1
1993 July 499.2
1993 June 498.0
1993 May 498.1
1993 April 497.3
1993 March 495.4
1993 February 492.5
1993 January 488.6
1992 December 484.7
1992 November 483.8
1992 October 483.4
1992 September 482.9
1992 August 483.2
1992 July 482.9
1992 June 481.8
1992 May 480.4
1992 April 479.1
1992 March 477.6
1992 February 476.8
1992 January 475.0
1991 December 473.8
1991 November 473.3
1991 October 471.6
1991 September 471.1
1991 August 470.9
1991 July 469.5
1991 June 469.5
1991 May 467.1
1991 April 466.6
1991 March 465.4
1991 February 464.5
1991 January 463.8
1990 December 462.3
1990 November 462.4
1990 October 463.5
1990 September 461.9
1990 August 460.7
1990 July 460.4
1990 June 460.0
1990 May 458.8
1990 April 457.8
1990 March 457.1
1990 February 455.1
1990 January 452.5
1989 December 449.5
1989 November 448.8
1989 October 448.3
1989 September 447.1
1989 August 446.0
1989 July 445.9
1989 June 445.1
1989 May 442.6
1989 April 441.7
1989 March 441.4
1989 February 439.1
1989 January 440.6
1988 December 438.9
1988 November 437.5
1988 October 436.0
1988 September 433.2
1988 August 430.4
1988 July 429.0
1988 June 426.8
1988 May 424.5
1988 April 423.3
1988 March 421.7
1988 February 419.4
1988 January 419.5
1987 December 419.0
1987 November 417.9
1987 October 416.7
1987 September 415.7
1987 August 414.4
1987 July 413.9
1987 June 411.5
1987 May 410.5
1987 April 409.9
1987 March 408.6
1987 February 407.8
1987 January 405.8
1986 December 403.9
1986 November 402.2
1986 October 402.5
1986 September 401.7
1986 August 400.9
1986 July 403.0
1986 June 401.5
1986 May 400.2
1986 April 400.0
1986 March 400.2
1986 February 398.8
1986 January 400.1
1985 December 400.0
1985 November 397.5
1985 October 396.7
1985 September 395.2
1985 August 394.2
1985 July 393.9
1985 June 392.0
1985 May 390.5
1985 April 388.9
1985 March 389.0
1985 February 386.4
1985 January 383.6
1984 December 378.5
1984 November 375.6
1984 October 373.7
1984 September 372.1
1984 August 369.8
1984 July 369.0
1984 June 366.0
1984 May 363.7
1984 April 362.1
1984 March 360.4
1984 February 357.9
1984 January 355.4
1983 December 352.3
1983 November 349.4
1983 October 347.3
1983 September 344.9
1983 August 342.6
1983 July 341.7
1983 June 338.6
1983 May 335.2
1983 April 333.7
1983 March 330.5
1983 February 327.0
1983 January 324.6
1982 December 321.2
1982 November 314.7
1982 October 310.4
1982 September 310.2
1982 August 309.7
1982 July 309.8
1982 June 309.5
1982 May 308.0
1982 April 306.2
1982 March 303.4
1982 February 300.3
1982 January 294.1
1981 December 287.0
1981 November 283.2
1981 October 280.2
1981 September 274.4
1981 August 270.3
1981 July 268.4
1981 June 264.4
1981 May 261.2
1981 April 259.0
1981 March 256.9
1981 February 254.4
1981 January 251.8
1980 December 248.5
1980 November 245.2
1980 October 243.2
1980 September 240.9
1980 August 237.7
1980 July 237.4
1980 June 234.6
1980 May 232.2
1980 April 229.7
1980 March 227.4
1980 February 224.2
1980 January 220.1
1979 December 216.3
1979 November 213.0
1979 October 210.9
1979 September 207.5
1979 August 204.1
1979 July 203.0
1979 June 200.6
1979 May 197.1
1979 April 195.2
1979 March 191.3
1979 February 189.6
1979 January 187.4
1978 December 185.3
1978 November 183.8
1978 October 182.3
1978 September 180.9
1978 August 178.4
1978 July 177.4
1978 June 174.6
1978 May 172.7
1978 April 171.3
1978 March 169.0
1978 February 167.3
1978 January 166.0
1977 December 163.3
1977 November 162.2
1977 October 162.0
1977 September 160.5
1977 August 159.2
1977 July 159.1
1977 June 157.9
1977 May 156.7
1977 April 155.6
1977 March 153.6
1977 February 152.6
1977 January 151.1
1976 December 150.7
1976 November 149.8
1976 October 148.8
1976 September 147.3
1976 August 145.0
1976 July 143.9
1976 June 142.4
1976 May 139.7
1976 April 138.2
1976 March 134.1
1976 February 131.6
1976 January 130.1
1975 December 127.8
1975 November 127.3
1975 October 126.0
1975 September 125.1
1975 August 124.2
1975 July 124.1
1975 June 123.4
1975 May 122.4
1975 April 121.4
1975 March 121.0
1975 February 121.4
1975 January 121.1
1974 December 119.8
1974 November 119.2
1974 October 118.3
1974 September 117.6
1974 August 115.8
1974 July 115.6
1974 June 114.2
1974 May 112.3
1974 April 109.3
1974 March 106.3
1974 February 103.3
1974 January 100.0

last values

File format

In SDMX-ML format (user guide available here)

Following the ongoing renovation of branches, the series 8631 has been stopped and can be extended by the new series 1710986, with the connecting coefficient 8.3802. In order to extend the former series beyond September 2014, please multiply the new series' indices by the connecting coefficient.

Characteristics

  • Correction : Non-adjusted (raw)
  • Reference period : 1974-01
  • Periodicity : Monthly
  • Geographical area : Whole France (Metropolitan France + French Overseas Departments)

Introduction

The building (BT) and civil engineering (TP) indices provide the cost of different activities in the construction sector, and are used mainly for contract indexing. The “all-trades” indices BT01, BT50 and TP01 are also used for statistical purposes. Until January 2014, when the October 2013 indices came out, these series of indices were published and calculated by the department of economy, evaluation, and integration of sustainable development in the Ministry of Ecology, Sustainable Development and Energy. Decree no. 2014-114 of 7 February 2014 concerning the national index in the building industry - all trades - and the circular of 21 February from the Ministry of the Economy and Finances NOR EFIS 1404646 C transferred this responsibility to INSEE. From February 2014, with the production of the November 2013 indices, the general methodology, weightings and the 1974 (BT) or 1975 (TP) reference for these indices have been retained, but the all basic indices now correspond to indices produced from public statistics for evolving calculations.

Goals

These indices can be used:

  • By businesses and local authorities for contract indexing.

    Businesses and local authorities can use these official indices for construction work bids, by selecting the activity that is closest to the subject of their bid. These “indices” consist of parametric formulae representing changes in costs for different inputs, as recommended in the guide Le prix dans les marchés publics (“Prices in public procurement”) published by the legal department of the Ministry of Economy and Finances in April 2013 (version 1.1). However, other better adapted parametric formulae are also permissible, such as using the “miscellaneous costs” and “transport” headings published under “various indices in the construction industry”;

  • By national accountants to deflate production in the construction sector from the structural statistics from businesses and thus break down the figures into change in activity in volume (quantity, quality, effect of structure) and pure price change (“volume-price breakdown”). The “all-trades” indices, BT01, BT50 and TP01 complement the price index for the production of new housing for residential use (derived from the cost-of-construction index, which is in fact a price index) and the maintenance and improvements work price index;
  • By economists to assess and analyse business tendencies.

    The BT01 index is particularly useful as an advance indicator for the reference price in the construction sector. Under two of its headings it provides data for the French response to the European regulation on short-term statistics (“STS” EC regulation no. 1165/98 of the Council of 19 May 1998, amended by EC regulation no. 1158/2005 of the Council of 6 July 2005) for variables 320 “construction costs”, 321 “material costs” and 322 “labour costs” from appendix B “Construction” of this regulation.

Scope and list of BT and TP indices calculated

When they were first produced, the BT and TP indices were coordinated with the classification of activities and products at the time, NAP 73. Although subsequently they were not adjusted to the NAF and CPF classifications, they were listed thereafter by activity code in NAF 2008 and CPF 2008 to make it easier to select the correct index, using the explanatory notes on the classification that can be found on the INSEE website:

List of BT indices

French classification of activities /
French classification of products, revision 2 of 2008
Building Index
41.20Construction of residential and non-residential buildingsBT01All trade works
43.12.12EarthworksBT02Earthworks
43.21Electricity installationBT47Electricity
43.22.11Water installation and distribution and laying waste pipesBT38Plumbing (including apparatus)
43.22.12Heating, ventilation and air conditioning installationBT40Central heating (excluding electrical heating)
BT41Ventilation and air conditioning
43.29.19Other installation work n.e.c.BT48Elevators
43.31Plastering BT08Plaster and prefabricated plaster
43.32AWooden and PVC joinery workBT19aWooden joinery including external hardware, tropical wood stairs
BT20aWooden joinery including external hardware; oak wood stairs
BT18aWooden joinery including internal hardware including walls and flooring
BT26Plastic bay closing works including PVC window
BT51PVC joinery
43.32BMetal joinery work and locksmithsBT27Aluminium bay window closing works
BT28Ferrous metals bay closing works
BT42Steel joinery and locksmiths
BT43Aluminium alloy joinery
43.33.10Tiling workBT09Tile and ceramic
43.33.21Coatings in terrazzo, marble, granite and slateBT14Coatings in cut natural stone plate and similar products
43.33.29Other work on internal coating of floors and walls n.e.c.BT10Plastic coatings
BT11Synthetic textile coatings
BT12Natural textile coatings
43.34.10Painting workBT46Painting, wall hanging, wall coverings
43.34.20Glazing workBT45Glazing works-Mirror works
43.91.11Work on framesBT16aSoftwood timber frame
BT17aOak wood frame
43.91.19Other roofing workBT30Schist slate roofing and accessories
BT32Baked clay tile roofing and accessories
BT33Concrete tile roofing and accessories
BT34Zinc and metal roofing and accessories (excluding copper)
BT35Asphalt shingles roofing and accessories
BT49Ribbed sheet steel roofing and cladding with waterproofing membrane
43.99.10Waterproofing workBT52Exterior waterproofing coatings
BT53Asphalt sealing - multilayer
43.99.40Concrete workBT06Framework, reinforced concrete structures
43.99.50Work mounting metal framesBT07Framework and metal frames
43.99.60Masonry workBT03Masonry and pipes (except frame, reinforced concrete, tiling, coatings and plastering) in concrete
43Specialised construction workBT50Renovation-all trades maintenance

List of TP indices

French classification of activities /
French classification of products, revision 2 of 2008
Civil Engineering Index
42 + 43.1Public Works (Civil engineering + demolition works and site preparation)TP01All works general index
42.11Construction of roads and motorwaysTP08Roads and airfields with supplies
TP08bisRoads and airfields without supplies
TP09Road resurfacing works
TP09bisRoad resurfacing works (manufacturing and implementation without supplies)
TP09terRoads and airfields maintenance works
42.13AConstruction of engineering structuresTP02Engineering works on land, river or sea site and special foundation works
42.13BConstruction and maintenance of tunnelsTP05aTraditional underground works
TP05bUnderground works in tunnel-boring machines
42.21Construction of networks for fluidsTP10aDrains, sewers, sanitation and water supply works, pipes supplied
TP10bisDrains, sewers, sanitation and water supply works, pipes not supplied
TP11Long-distance pipelines and irrigation works, pipes supplied
42.22Construction of networks for electricity and telecommunicationsTP12Electrification networks
42.91Construction of sea and river projectsTP06River dredging
TP07bCivil engineering works, concrete and steel for maritime works
TP14Underwater works in diving suits
42.99Construction of other civil engineering projects n.e.c.TP13Carpentry and metal engineering works
43.12BSpecialised or large-scale earthworksTP03General earthworks
43.13ZDrilling and boringTP04Drilling and boring

Technical characteristics

Methodology

The building (BT) and civil engineering (TP) indices give the costs of the different activities in the construction sector, derived from 6 line-items in an analytical accounting process: “cost of labour”, previously called “wages and charges”, “materials”, “assets”, “energy”, “transport”, “miscellaneous costs”; these are similar to the “KLEMST” approach used by economists in relation to productivity (where K = capital for “assets”, L = labour, E = energy, M = materials, S = services for “miscellaneous costs”, T = transport).

The links between the items in the indices and the lines in the general accounting plan are as follows, given that subcontracting has been removed from production, the heading “miscellaneous costs” has been capped, and only costs that can be linked to a specific construction site are assumed to be taken into account :

ItemsGeneral financial accounting
KCapital605Purchase of capital assets, equipment and work
606 \ 6061Purchases not stored (small items)
612 \ partialLeasing excluding transport equipment
6131 \ partialEquipment hire excluding transport equipment
615 \ partialMaintenance and repairs excluding transport equipment
68 \ partialDepreciation and amortisation of fixed assets excluding transport equipment
LLabour604Purchases of services
621Temporary staff
6311Payroll tax
64Personnel expenses
EEnergy60221 \ partialCombustibles excluding fuels
6061Non-stockable supplies (water, energy, electricity)
MMaterials601Stored purchases
602 \ 60221Other supplies
609Rebates and allowances on purchases
SServices (miscellaneous costs)61External services minus 611 “general subcontracting”, minus 612 “leasing”, minus 6131 “Equipment hire”, minus 615 “maintenance and repairs”, minus 6163 “transport insurance”
622Remuneration of intermediaries and professional fees
623Advertising, public relations
625Travel and entertaining
626Postal and telecommunication charges
68 \ partialDepreciation and amortisation of fixed assets
TTransport60221 \ partialFuel
Part of 612Leasing transport equipment
Part of 6135Hire of trucks without drivers
Part of 6155Maintenance and repair of transport equipment
6163Transport insurance
624Transport of goods and employee transport
68 \ partialDepreciation and amortisation of transport equipment

Each item consists of basic indices, from now on all derived from public statistics.

The weightings for the items and the basic indices that make up the items are fixed for the duration of the base.

Aggregation and reference

Items are calculated using a chained Lowe aggregation technique: change in an item is a weighted mean of changes in the basic indices that make up the item.

Although the structure and weighting of the BT and TP indices have been revised periodically, the BT indices are still expressed with reference to 1974, and the TP with reference to 1975.

Weightings

The tables for which the links are provided below give the weightings for the different indices according to each item and within the materials budget item for the BT indices:

Weighting of Building indices, item by item
IndexItems
Codes Titles Cost of labour Equipment Transport Energy Misc. costs Mate­rials Total
BT01 All trade works 43% 4% 3% 3% 15% 32% 100%
BT02 Earthworks 36% 36% 0% 10% 18% 0% 100%
BT03 Masonry and pipes (except frame, reinforced concrete, tiling, coatings and plastering) in concrete 55% 7% 2% 2% 11% 23% 100%
BT06 Framework, reinforced concrete structures 47% 8% 3% 1% 13% 28% 100%
BT07 Framework and metal frames 42% 6% 2% 3% 6% 41% 100%
BT08 Plaster and prefabricated plaster 50% 3% 2% 0% 10% 35% 100%
BT09 Tile and ceramic 45% 3% 2% 0% 10% 40% 100%
BT10 Plastic coatings 35% 3% 2% 0% 10% 50% 100%
BT11 Synthetic textile coatings 30% 3% 2% 0% 10% 55% 100%
BT12 Natural textile coatings 10% 3% 2% 0% 10% 75% 100%
BT14 Coatings in cut natural stone plate and similar products 44% 3% 4% 0% 10% 39% 100%
BT16a Softwood timber frame 37% 4% 5% 0% 11% 43% 100%
BT17a Oak wood frame 45% 3% 3% 0% 11% 38% 100%
BT18a Wooden joinery including internal hardware including walls and flooring 47% 4% 3% 0% 17% 29% 100%
BT19a Wooden joinery including external hardware, tropical wood stairs 48% 4% 3% 0% 18% 27% 100%
BT20a Wooden joinery including external hardware; oak wood stairs 48% 4% 3% 0% 18% 27% 100%
BT26 Plastic bay closing works including PVC window 41% 3% 2% 0% 7% 47% 100%
BT27 Aluminium bay window closing works 38% 4% 2% 0% 8% 48% 100%
BT28 Ferrous metals bay closing works 43% 4% 2% 0% 8% 43% 100%
BT30 Schist slate roofing and accessories 40% 3% 4% 0% 13% 40% 100%
BT32 Baked clay tile roofing and accessories 40% 3% 4% 0% 13% 40% 100%
BT33 Concrete tile roofing and accessories 40% 3% 4% 0% 13% 40% 100%
BT34 Zinc and metal roofing and accessories (excluding copper) 40% 3% 4% 0% 13% 40% 100%
BT35 Asphalt shingles roofing and accessories 40% 3% 4% 0% 13% 40% 100%
BT38 Plumbing (including apparatus) 42% 3% 3% 0% 12% 40% 100%
BT40 Central heating (excluding electrical heating) 40% 2% 2% 0% 15% 41% 100%
BT41 Ventilation and air conditioning 35% 2% 2% 0% 15% 46% 100%
BT42 Steel joinery and locksmiths 42% 3% 2% 1% 12% 40% 100%
BT43 Aluminium alloy joinery 42% 5% 3% 0% 7% 43% 100%
BT45 Glazing works-Mirror works 35% 3% 4% 0% 10% 48% 100%
BT46 Painting, wall hanging, wall coverings 58% 3% 0% 0% 12% 27% 100%
BT47 Electricity 45% 2% 0% 0% 14% 39% 100%
BT48 Elevators 60% 3% 2% 0% 10% 25% 100%
BT49 Ribbed sheet steel roofing and cladding with waterproofing membrane 35% 5% 4% 3% 12% 41% 100%
BT50 Renovation-all trades maintenance 58% 4% 3% 2% 15% 18% 100%
BT51 PVC joinery 27% 2% 2% 0% 7% 62% 100%
BT52 Exterior waterproofing coatings 54% 3% 3% 3% 3% 34% 100%
BT53 Asphalt sealing - multilayer 36% 5% 3% 3% 10% 43% 100%
Weighting of Civil Engineering indices, item by item
IndexItems
Codes Titles Cost of labour Equipment Transport Energy Misc. costs Mate­rials Total
TP01 All works general index 44% 18% 4% 6% 6% 22% 100%
TP02 Engineering works on land, river or sea site and special foundation works 55% 18% 1% 3% 3% 20% 100%
TP03 General earthworks 40% 25% 5% 7% 3% 20% 100%
TP04 Drilling and boring 46% 23% 3% 5% 3% 20% 100%
TP05a Traditional underground works 53% 20% 3% 2% 9% 13% 100%
TP05b Underground works in tunnel-boring machines 33% 20% 7% 6% 8% 26% 100%
TP06 River dredging 45% 30% 0% 20% 5% 0% 100%
TP07b Civil engineering works, concrete and steel for maritime works 20% 13% 2% 3% 5% 57% 100%
TP08 Roads and airfields with supplies 35% 12% 12% 8% 8% 25% 100%
TP08bis Roads and airfields without supplies 49% 23% 1% 12% 15% 0% 100%
TP09 Road resurfacing works 24% 9% 12% 9% 7% 39% 100%
TP09bis Road resurfacing works (manufacturing and implementation without supplies) 43% 30% 0% 17% 10% 0% 100%
TP09ter Roads and airfields maintenance works 65% 20% 0% 5% 10% 0% 100%
TP10-a Drains, sewers, sanitation and water supply works, pipes supplied 41% 15% 4% 3% 3% 34% 100%
TP10bis Drains, sewers, sanitation and water supply works, pipes not supplied 51% 18% 4% 4% 5% 18% 100%
TP11 Long-distance pipelines and irrigation works, pipes supplied 22% 8% 2% 2% 5% 61% 100%
TP12 Electrification networks 51% 15% 6% 3% 7% 18% 100%
TP13 Carpentry and metal engineering works 45% 6% 2% 3% 10% 34% 100%
TP14 Underwater works in diving suits 50% 25% 5% 5% 5% 10% 100%

Information sources

The item “wages and charges” is now made up from the hourly labour cost index in the construction sector, produced by INSEE, with a lag of 3 months.

The basic indices for the other items are made up for the most part from producer price indices, and in particular the Producer price indices of French industry for the French market (base 2010) - Purchaser's price for contract escalation, produced by INSEE.

All the other indices are derived from public statistics.

Statistical units

The BT and TP indices do not give rise to a new survey; they use existing public statistics, and especially the OPISE survey, to make up the basic indices.

Conceptually, the unit observed in relation to costs is a branch, or a sub-branch, of activity in French construction companies.

Frequency of survey

Monthly.

Dissemination

The BT and TP indices are disseminated on the last working day of each month, at m+90, on the Macro-economic database (BDM) website page, under the topic “Prices and price indices”, heading “Production and import price indices”, sub-heading “Construction producer price and costs indices” then “Producer cost indices for construction (contract escalation)”.

They are also published in the Journal Officiel on the last day of the month.

These indices are never revised.

Background

The BT indices have evolved since the publication of the original structure in the Journal Officiel on 26 May 1974 (cf. circular A.J.C. no. 230/77). There are several reasons for these changes, deletion due to technical changes or because some materials were no longer used, rebalancing of the index structure by adding or replacing products or reallocating items. If one or more indices are merged this can also result in the creation of new indices in response to the introduction of new techniques.

The original structure of the BT indices was published in the Journal Officiel du 26 mai 1974 (PDF - 1,111 kB) (cf. circular A.J.C. no. 230/77).

There are currently 38 indices representing specialised engineering works.

BT01 covers all building activity, all trades combined.

  • Creation of indices BT16a, BT17a, BT18a ,BT19a et BT20a:
    Circular no. 2006-95 (PDF - 128 kB) of 18 December 2006 - NOR: EQUG0612540C - B.O. no. 2007-24
  • Deletion of indices BT13, BT15, BT16, BT17, BT18, BT19, BT20, BT21, BT22, BT23, BT24 et BT25:
    Circular no. 2006-95 (PDF - 128 kB)
  • Merging of BT03 and BT04 into BT03:
    Circular no. 2003-67 of 24 November 2003 - NOR: EQUE0310324C - B.O. no. 2003-23
  • Merging of BT44 and BT45 into BT45:
    Circular no. 2003-37 of 27 May 2003 - NOR: EQUE0310097C - B.O. no. 2003-11
  • Press release on changes to the BT and TP grid:
    BOCCRF of 3 June 1999 - NOR: ECOC9910146X
  • Creation of BT52 and BT53 (merging of BT36 and BT37):
    Circular no. 98-54 of 30 May 1998 - NOR: EQUE9810070C - Creation of BT52 and BT53 (PDF - 430 kB)
  • Deletion of BT31 and BT39:
    Circular no. 97-34 of 15 April 1997 - NOR: EQUE9710061C - Deletion of BT31 and BT39 (PDF - 384 kB)
  • Creation of BT49 and BT50 - Deletion of BT05:
    Circular no. 92-12 of 10 March 1992 - NOR: EQUE9200394V - Creation of BT49 and BT50 - Deletion of BT05 (PDF - 40 kB)
  • Deletion of BT29 - Creation of BT51:
    Circular no. 91-31 of 15 April 1991 - NOR: EQUE9110044C - Deletion of BT29 - Creation of BT51 (PDF - 175 kB)
  • New weighting between the different elements that make up the BT indices
  • PsdA index - Various products and services:
    Replaced by three separate items: Transport (TR), Miscellaneous costs (FD) and Energy - Press release of 30 April 1992-ECOC9210083B (PDF - 6,063 kB)
  • Second circular:
    Did not appear in J.O. 18 June 1974 (PDF - 647 kB)
  • Original structure of BT indices:
    Appeared in J.O. 26 May 1974 (PDF - 1,111 kB)

The TP indices date back to 1967 in their original form. Their present reference dates back to 1975. There have also been many deletions, creations or changes in composition:

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