http://www.legislation.gov.uk/ukpga/2001/2/section/21/2008-07-21Capital Allowances Act 2001An Act to restate, with minor changes, certain enactments relating to capital allowances.2001-04-05texttext/xmlenStatute Law Database2026-05-01Expert Participation2008-07-21Capital 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. 2Part 2 Plant and machinery allowancesChapter 3 Qualifying expenditure Buildings, structures and land
21 Buildings(1)

For the purposes of this Act, expenditure on the provision of plant or machinery does not include expenditure on the provision of a building.

(2)

The provision of a building includes its construction or acquisition.

(3)

In this section, “building” includes an asset which—

(a)

is incorporated in the building,

(b)

although 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, or

(c)

is 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.

(4)

This section is subject to section 23.