http://www.legislation.gov.uk/ukpga/2001/2/section/21/2004-11-10Capital Allowances Act 2001An Act to restate, with minor changes, certain enactments relating to capital allowances.2001-04-05texttext/xmlenStatute Law Database2025-05-05Expert Participation2004-11-10 Capital Allowances Act 2001s. 774E(5)(b)Finance Act 2008Sch. 20 para. 12(11)Capital Allowances Act 2001s. 29(1A)The Fire and Rescue Services (Northern Ireland) Order 2006Sch. 3 para. 24(b)art. 1(3)art. 2 Part 2Chapter 3211For the purposes of this Act, expenditure on the provision of plant or machinery does not include expenditure on the provision of a building.2The provision of a building includes its construction or acquisition.3In this section, “building” includes an asset which—ais incorporated in the building,balthough not incorporated in the building (whether because the asset is moveable or for any other reason), is in the building and is of a kind normally incorporated in a building, orcis in, or connected with, the building and is in list A.List A Assets treated as buildings

1.	Walls, floors, ceilings, doors, gates, shutters, windows and stairs.
2.	Mains services, and systems, for water, electricity and gas.
3.	Waste disposal systems.
4.	Sewerage and drainage systems.
5.	Shafts or other structures in which lifts, hoists, escalators and moving walkways are installed.
6.	Fire safety systems.

4This section is subject to section 23.Pt. 2 modified (24.2.2003) by Proceeds of Crime Act 2002 (c. 29), s. 458(1), Sch. 10 para. 12 (with Sch. 10 para. 17(1)); S.I. 2003/120, art. 2, Sch. (with arts. 3 4) (as amended (20.2.2003) by S.I. 2003/333, art. 14)S. 45H(2) modified (with effect in accordance with s. 167 of the amending Act) by Finance Act 2003 (c. 14), Sch. 30 para. 7 Pt. 2 restricted (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 4 para. 4 ; S.I. 2004/2575 , art. 2(1) , Sch. 1 Pt. 2 modified (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 paras. 9(2), 21(2) (with s. 38(2)); S.I. 2004/2575, art. 2(1) , Sch. 1 Pt. 2 restricted (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 para. 10 (with s. 38(2) ); S.I. 2004/2575 , art. 2(1) , Sch. 1 Pt. 2 modified (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 para. 21(2) (with s. 38(2) ); S.I. 2004/2575 , art. 2(1) , Sch. 1 Pt. 2 restricted (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 paras. 10, 22 (with s. 38(2) ); S.I. 2004/2575 , art. 2(1) , Sch. 1