The Building Regulations 2010

[^key-bcd3dccd2d93ea862b2e03a2fb014804]: Words in reg. 35(1) inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(16)(a)(ii) (with reg. 1(3))

[^key-bd033d03acfd5c84379733eb4bddcf77]: Word in reg. 26A heading omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 8(a) (with reg. 21)

[^key-bd2f45d876496edffdacfb4f680c1802]: Words in reg. 7(3)(k) substituted (5.6.2023) by The Building etc. (Amendment) (England) Regulations 2023 (S.I. 2023/520), regs. 1(2), 2(2)

[^key-bd4cdaa541b2a2aa086ac7c6b9580c13]: Reg. 44 applied (with modifications) (1.10.2010) by The Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215), regs. 1, 20(1)(6)

[^key-bedde9a190aac9ea6858d1736a04947a]: Reg. 54(1) revoked in part (9.1.2013) by The Energy Performance of Buildings (England and Wales) Regulations 2012 (S.I. 2012/3118), reg. 1(4), Sch. 3 (with reg. 44)

[^key-befdbaa004ff4e6f283222ee1b44359d]: Reg. 27(2)(3) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(12)(a) (with regs. 22-24)

[^key-bf775cabe40bd982e0e9dd3a002b97ec]: Reg. 25C inserted (W. but not in relation to excepted energy buildings) (31.7.2014) by The Building (Amendment) (Wales) Regulations 2014 (S.I. 2014/110), regs. 1(3), 5 (with reg. 1(2))

[^key-bfab71b8e113976173f9f655d0e32e6f]: Reg. 17(5) inserted (E., but only in relation to excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 10(b), Sch. 1 (with regs. 1(3), 45-47)

[^key-c0d1def3db85418a856dcdd4c4d50636]: Reg. 48(1)(i)(j) omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by virtue of The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(18) (with reg. 1(3))

[^key-c0f656380fc5de49fbf1b8dd98d996ec]: Words in reg. 2(1) inserted (27.1.2013) by The Energy Performance of Buildings (England and Wales) etc. (Amendment) Regulations 2013 (S.I. 2013/10), regs. 1(1), 4(2)

[^key-c140ae461b778a938a5e84de54741a77]: Words in reg. 18(5) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(8)(a) (with regs. 22-24)

[^key-c1e60b8ae48783c6d12cf51025e8e61c]: Word in reg. 5 omitted (E.) (21.12.2018) by virtue of The Building (Amendment) Regulations 2018 (S.I. 2018/1230), regs. 1(4), 2(4)(a) (with regs. 1(3), 3)

[^key-c2699bc6770fef2ff7c6413953676061]: Words in reg. 2(1) omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by virtue of The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(2)(b) (with reg. 1(3))

[^key-c2b5908895574c8cdc70d7b114feb952]: Reg. 2(6)(b)-(e) substituted for reg. 2(6)(b) (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(2)(b) (with reg. 4)

[^key-c2b6a53cc6b7b5489fc23ba75966c0db]: Reg. 54(2) revoked in part (9.1.2013) by The Energy Performance of Buildings (England and Wales) Regulations 2012 (S.I. 2012/3118), reg. 1(4), Sch. 3 (with reg. 44)

[^key-c2f70b13f3c2f9d8c4853719c93b0fdc]: Words in reg. 2(1) inserted (27.1.2013) by The Energy Performance of Buildings (England and Wales) etc. (Amendment) Regulations 2013 (S.I. 2013/10), regs. 1(1), 4(3)

[^key-c40a9dc2a0317f8dc2cd9f4454be7060]: Words in reg. 16(7) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(5)(a) (with regs. 22-24)

[^key-c45728fa82904bd6c2b24e7cfb11b4af]: Reg. 42(4) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(17)(b) (with regs. 22-24)

[^key-c4ebce0b6087e166e031b9cf4e0ab2e6]: Words in reg. 43(4) substituted (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 9 (with reg. 1(2))

[^key-c5b441e74044dfd42566f821c87a85db]: Words in reg. 35 inserted (E., but only in relation to excepted energy buildings in W.) (1.10.2015) by The Building Regulations &c. (Amendment) Regulations 2015 (S.I. 2015/767), regs. 1(4)(b), 2(7)(b) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-c5f5a5e111bace6a3cf52b1c36ee976a]: Words in reg. 16(4) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(5)(a) (with regs. 22-24)

[^key-c64374f9312273b86efe74887e4d9581]: Words in reg. 16(3) substituted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(5)(a) (with regs. 22-24)

[^key-c6cbf39f65959136cd913499bb31ff61]: Reg. 47 substituted (E., but only in relation to excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 25, Sch. 1 (with regs. 1(3), 45-47) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-c6fd3cfb751a0aa4427bb5cf1f6a959e]: Reg. 41(3A) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(16)(c) (with regs. 22-24)

[^key-c7327701f5ee81798e4a04a54955c3f5]: Word in reg. 12(9) omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2013) by virtue of The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 6(b)(i), Sch. 1 (with regs. 1(3), 45-47) (as amended by S.I. 2013/181, reg. 5, Sch.) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-c748ae002bd32103d6c80a700bbffa61]: Words in reg. 12(6A) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(2)(d) (with regs. 22-24)

[^key-c78ef5e9a3f0cdad0949337e5f33cbed]: Words in reg. 43(4) inserted (E., but only in relation to excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 24, Sch. 1 (with regs. 1(3), 45-47)

[^key-c7fe09e1843249a72cc4d9679fb2c648]: Words in reg. 16(8) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(5)(b) (with regs. 22-24)

[^key-c83abe84bfe34ea28da5d747e37e6224]: Words in reg. 44C heading inserted (26.12.2022) by The Building etc. (Amendment) (England) (No. 2) Regulations 2022 (S.I. 2022/984), reg. 1(4), Sch. para. 6(2) (with reg. 3)

[^key-c856a6c88e35d345182d020342a85767]: Words in Sch. 3 para. 10 inserted (W. but do not apply in relation to excepted energy buildings) (15.1.2018) by The Building (Amendment) (Wales) Regulations 2017 (S.I. 2017/1274), regs. 1(2)(a), 2(3)(b)(i) (with reg. 1(3))

[^key-c891a43a69bca28ddfcdaaf2254d848e]: Words in reg. 26A omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 8(b) (with reg. 21)

[^key-c89abbe48a86df92b271dfc0b4c86229]: Words in reg. 4(2) inserted (W.) (13.1.2020) by The Building (Amendment) (Wales) Regulations 2019 (S.I. 2019/1499), regs. 1(4), 2(3) (with reg. 3)

[^key-c8a822c89075909212f721e71a2fbd00]: Sch. 1 Pt. N inserted (W. in relation to excepted energy buildings) (8.6.2018) by The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 13(d) (with reg. 29)

[^key-c8b6f1825c866f576219c2dd49ca530c]: Reg. 37 modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(7) (with regs. 44-47)

[^key-c8d3e3f50cceafcdefc5b984d4c72a95]: Words in reg. 19(1) inserted (E.) (5.6.2023) by The Building etc. (Amendment) (England) Regulations 2023 (S.I. 2023/520), regs. 1(2), 2(4)

[^key-c922dced541c59bcf35d3c8944e08d70]: Words in reg. 15(1) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(4)(a) (with regs. 22-24)

[^key-c9db3d54bbd0079fc407b264547250b5]: Sch. 3A inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by The Building Regulations &c. (Amendment) Regulations 2014 (S.I. 2014/579), regs. 1(4), 2(10), Sch. Pt. 2 (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-ca3643ee27532eeb7a2d54fd4ce502ce]: Word in Sch. 3 para. 17 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(q)(ii) (with reg. 21)

[^key-cc49f54718f326ca8bab18c3c61ab554]: Words in Sch. 3A omitted (E.) (15.6.2022) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 13 (with reg. 1(2))

[^key-cc82de04eb88d07a82e61e656fa16a8a]: Regulations continued (W.) (5.9.2023) by The Building Safety Act 2022 (Commencement No. 3, Transitional and Saving Provisions) (Wales) Regulations 2023 (S.I. 2023/914), regs. 9, 10

[^key-cc8cdb7654198b163ce1772786b334f5]: Words in Sch. 4 para. 1(l) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(23)(c) (with regs. 22-24)

[^key-cdf609bc1cefa42ac7fe2f00ec012cfd]: Reg. 15A inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 9 (with regs. 22-24)

[^key-ce01d34c877428ed409d7fa90db5e1cb]: Pt. 9A heading substituted (E.) (26.12.2022) by The Building etc. (Amendment) (England) (No. 2) Regulations 2022 (S.I. 2022/984), reg. 1(4), Sch. para. 4 (with reg. 3)

[^key-ce30ba964d684674d9a5cd96a8f1c9b4]: Words in Sch. 3 paras. 7-9 omitted (E.) (15.6.2022) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 12(2)(a) (with reg. 1(2))

[^key-ceab49a467e97c0c91f1c67252177cef]: Words in reg. 16(4A)(e) inserted (E.) (7.10.2025) by The Building Regulations etc. (Amendment) (England) Regulations 2025 (S.I. 2025/1017), regs. 1(2), 9(a) (with reg. 11(3)(4))

[^key-ced9f7118f915f17cbdf372c71b4b21e]: Words in reg. 27A(3)(a)(i) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(14)(c) (with reg. 1(3))

[^key-d02b6a6ef674ace4424ca92a2e5d928b]: Reg. 43(6) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(18)(b) (with regs. 22-24)

[^key-d07d9aa76fc62ecd5a16a02cd51c39e6]: Words in reg. 27(4) substituted (W. for remaining purposes) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(13)(e) (with reg. 1(3))

[^key-d09725641deb2734cffe222f8ef590ed]: Words in reg. 13(3) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(3)(a) (with regs. 22-24)

[^key-d1316a88945a1de446ba33214d48e7ab]: Words in reg. 15(2) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(4)(b)(ii) (with regs. 22-24)

[^key-d1b220092f28625e48565daa723a01ba]: Words in reg. 20(3) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(9)(a) (with regs. 22-24)

[^key-d44b93664a4aa104ab9fa2bc2017b5da]: Reg. 7 renumbered as reg. 7(1) (E.) (21.12.2018) by The Building (Amendment) Regulations 2018 (S.I. 2018/1230), regs. 1(4), 2(6) (with regs. 1(3), 3)

[^key-d459390c6af94bd917119b3b578e06ed]: Words in reg. 12(7) substituted (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 38(2)

[^key-d49885d4b06a01378e250f2fcdd3eaf1]: Word in Sch. 3 para. 2 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(c) (with reg. 21)

[^key-d4b8b535bbc6317cd648919c523c93f2]: Regs. 44ZAA-44ZC inserted (W.) (1.7.2025) by The Building etc. (Amendment) (Wales) Regulations 2025 (S.I. 2025/377), regs. 1(3), 4(2)(b) (with reg. 3)

[^key-d5d765d76dbff18f1aae91cd8cc76285]: Words in Sch. 3 paras. 8, 10 omitted (W. for remaining purposes) (17.6.2016) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(22) (with reg. 1(3))

[^key-d618e670e748a580b5b01d5482ba6477]: Words in Sch. 2 Class 1 para. 3 inserted (W.) (4.11.2024) by The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 (S.I. 2024/924), regs. 1(2), 53

[^key-d68aaa2e8068382df88b95c095825b7f]: Sch. 1 Pt. K substituted (W. in relation to excepted energy buildings) (8.6.2018) by The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 13(b) (with reg. 29)

[^key-d6967bb596dcdee7495698cd12bc3ce9]: Reg. 11(3) substituted (W. but not in relation to excepted energy buildings) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 4 (with reg. 1(2)(3))

[^key-d6afd79524b9294b2321fb54c09fa264]: Sch. 4A omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by virtue of The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(13) (with reg. 1(3))

[^key-d7349dc49688efb1d02acbe5f5accd20]: Words in reg. 19(1) inserted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 10 (with reg. 1(2)(3))

[^key-d767aa4c04f5c5bc3136dff552827306]: Words in reg. 17(1) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(6)(a) (with regs. 22-24)

[^key-d773db77bff47084a2e4d6a0fa981779]: Word "or" in reg. 44B(a)(i) omitted (W. in relation to excepted energy buildings) (8.6.2018) by virtue of The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 11(2)(a) (with reg. 29)

[^key-d7c9a6e38fe45333fee530e615ac7e58]: Words in reg. 16(5A)(e) inserted (E.) (7.10.2025) by The Building Regulations etc. (Amendment) (England) Regulations 2025 (S.I. 2025/1017), regs. 1(2), 9(c) (with reg. 11(3)(4))

[^key-d866944f0b361971d4c8fa3aad221fcf]: Reg. 37 applied (with modifications) (1.10.2010) by The Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215), regs. 1, 20(1)(4)

[^key-d8cae4f7e759357d76d591f23ff8b84a]: Word "and" in reg. 11(3) omitted (W. in relation to excepted energy buildings) (8.6.2018) by virtue of The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 4(5)(a) (with reg. 29)

[^key-d90ea43432697906be5a7ea683494506]: Definitions of “fabric energy efficiency” and “new dwelling” in reg. 35 omitted (W. in relation to excepted energy buildings) (8.6.2018) by virtue of The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 7(10) (with reg. 29)

[^key-d920660facd5c43aa6c35dd959218c07]: Word in reg. 17(2A)(e) omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by virtue of The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(5)(b) (with reg. 1(3))

[^key-d946bc5f1b781bc96ee7148348585c54]: Word in Sch. 3 para. 6 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(g) (with reg. 21)

[^key-d94ba92b882e75aaf7cfec52cd016584]: Reg. 27 applied (with modifications) (1.10.2010) by The Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215), regs. 1, 20(1)(2)

[^key-d974df43fdbc5849183013770562d1a6]: Words in reg. 16(6) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(5)(a) (with regs. 22-24)

[^key-d986645f448cdbe774f98a79ea662be0]: Word in reg. 7(3)(i) omitted (E.) (1.12.2022) by virtue of The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(c)(iv) (with reg. 4)

[^key-da0dc096e36c1a12a1aeebf0f7424fa2]: Words in reg. 27A(2)(a) inserted (W. but not in relation to excepted energy buildings) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(14)(a) (with reg. 1(3))

[^key-da1a1dcbacec2f518bd4a06ea2a91cec]: Reg. 20(5)(6) inserted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 11(b) (with reg. 1(2)(3))

[^key-daf234f1c89570ce6b0e1a2fc4d379a5]: Reg. 37A(1)(aa) inserted (W.) (17.12.2024) by The Building (Amendment) (Wales) Regulations 2024 (S.I. 2024/742), regs. 1(3), 2(3)(a)

[^key-dbae0781c9f1e41575f34568bb5c9804]: Words in reg. 2(1) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 3(a) (with regs. 22-24)

[^key-dc50d0d383582099724bf25e5edb78f2]: Words in reg. 26A substituted (E., but only in relation to excepted energy buildings in W.) ((6.4.2016) by The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(10)(b) (with reg. 1(3))

[^key-dc9386c213ea391dea28358e9a73cbe7]: Reg. 41 modified (1.10.2010) by The Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215), regs. 1, 20(5) (as amended (1.10.2023) by S.I. 2023/906, regs. 1(2), 13(1)(d))

[^key-dd0f48a9a9891f4331c8f27c0b7e24b2]: Words in reg. 41(2)(b) (E.) substituted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(16)(a) (with regs. 22-24)

[^key-de5aa69511c50652ff23bd2ce0b2bafa]: Reg. 13(1A) inserted (E., but only in relation to excepted energy buildings in W.) (1.10.2015) by The Building Regulations &c. (Amendment) Regulations 2015 (S.I. 2015/767), regs. 1(4)(b), 2(5)(b) (with regs. 1(3), 4) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-dea42d2641e8aa17e7cb41c62a62edcf]: Reg. 11(3) substituted (E., but only in relation to educational buildings and buildings of statutory undertakers in W., Crown buildings in W., building work carried out or proposed to be carried out by Crown authorities in W., and excepted energy buildings in W.) (3.6.2013) by The Building (Amendment) Regulations 2013 (S.I. 2013/1105), regs. 1(2), 3(2) (with reg. 1(3)(4))

[^key-df4db5b850f7ad92b982dd4a3b2c73ba]: Reg. 7(2) substituted (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(b) (with reg. 4)

[^key-e00088b449753bb890b00bd24a3b9060]: Reg. 20A(1A) inserted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 12(2) (with regs. 22-24)

[^key-e09e05ebf173f63148ff052c810eb905]: Reg. 17(2A)(c) substituted (E., but only in relation to excepted energy buildings in W.) (6.4.2016) by The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(4), 2(5)(a) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-e0cdd25b9e4caf7336897e5cd76dc9ff]: Reg. 27C(4A) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(14)(c) (with regs. 22-24)

[^key-e0d19418397ef11ad3f6f407976c7267]: Reg. 48(1)(ga) inserted (E., but only in relation to excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 26(b), Sch. 1 (with regs. 1(3), 45-47)

[^key-e2a4494865626b99ec578fb62e9b5b86]: Words in reg. 13(4) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(3)(b) (with regs. 22-24)

[^key-e2fb36c7e9e0d5e1c291439fb9eeec81]: Words in reg. 35(1) omitted (W. for remaining purposes) (19.4.2013) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 20(b)(iii) (with reg. 1(2)(3))

[^key-e35d4b090e6474c9c5d2c6db9c401786]: Word in reg. 27B(3)(a)(ii) omitted (W. but not in relation to excepted energy buildings) (17.6.2016) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(15)(d) (with reg. 1(3))

[^key-e36c534a026bfba91b8e4810bd88b041]: Regs. 27A, 27B inserted (W. but not in relation to excepted energy buildings) (31.7.2014) by The Building (Amendment) (Wales) Regulations 2014 (S.I. 2014/110), regs. 1(3), 7 (with reg. 1(2))

[^key-e36f6e0ad8a5b8fb45cb151d8606a71e]: Reg. 27B inserted (W. for remaining purposes) (8.6.2018) by The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 7(7) (with reg. 29)

[^key-e3b2e9dc78f31a75b4a98f40ba2ff170]: Words in reg. 11(2) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(1) (with regs. 22-24)

[^key-e413fd30c8a15df5bee3908478f9771d]: Sch. 3A omitted (W. in relation to excepted energy buildings) (8.6.2018) by virtue of The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 15 (with reg. 29)

[^key-e4d42c5e6b214121de44a7afae7af4ad]: Reg. 44ZA(3)(4) substituted for reg. 44ZA(3) (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(20)(b) (with regs. 22-24)

[^key-e501b4e71be7dfdd40252bf94d678a2d]: Words in reg. 21(3)(a)(ii) substituted (W.) (4.11.2024) by The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 (S.I. 2024/924), regs. 1(2), 50(b)

[^key-e63729566a20ec3525ba09a4c61e437f]: Word in Sch. 3 para. 4 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(e) (with reg. 21)

[^key-e643b835bbafc401e2ccfe982077a018]: Words in reg. 16(1) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 15(1)(b)(ii) (with regs. 22-24)

[^key-e6833f5bfa86fb00f383bf340ca42bbc]: Reg. 25A(3A) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(11)(c) (with regs. 22-24)

[^key-e6d55a13cebd6027d181ce1f94964c7e]: Words in reg. 20(3A) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(9)(a) (with regs. 22-24)

[^key-e7829a2c23e6b8b847c7433bbae96b60]: Words in reg. 2(1) substituted (E., but only in relation to excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 3(c), Sch. 1 (with regs. 1(3), 45-47)

[^key-e784884d4e9e4280805db8642243e969]: Word in Sch. 3 para. 11 substituted for comma (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 12(2)(l) (with reg. 1(2))

[^key-e84ee45e4fdc61539151a847f7dddb77]: Reg. 7(3)(k) and word inserted (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(c)(v) (with reg. 4)

[^key-e8c4d509358e5565f5df2c056b0860b5]: Words in reg. 35(1) inserted (E., but only in relation to educational buildings and buildings of statutory undertakers in W., Crown buildings in W., building work carried out or proposed to be carried out by Crown authorities in W., and excepted energy buildings in W.) (9.1.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 23(b)(ii), Sch. 1 (with reg. 1(3)(4), 45-47)

[^key-e92f85bf9c2d4f382ada44e05a8eecd8]: Reg. 7(3)(da) inserted (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(c)(i) (with reg. 4)

[^key-e9b42a53883f045b864a70d23f4c6ed3]: Words in Sch. 1 Pt. G inserted (W.) (1.11.2018) by The Building (Amendment) (Wales) Regulations 2018 (S.I. 2018/552), regs. 1(3), 3(3)(b) (with reg. 6)

[^key-ea125a696d2e0a9bbfd4f1fab3da14bb]: Words in Sch. 4 heading substituted (E.) (1.10.2023) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(23)(a) (with regs. 22-24)

[^key-ea283ff88623b8b300439783ce3178ee]: Words in reg. 16(5) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 6(2)(c) (with regs. 22-24)

[^key-eaeb57e0b7575802dbac1f928dc6f8f5]: Word in Sch. 3 para. 13 substituted for comma (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 12(2)(n) (with reg. 1(2))

[^key-eb926f0cb1e193c1b671f4ff728647e0]: Words in reg. 25A(3) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(11)(b) (with regs. 22-24)

[^key-ebe47ea18b140809bc65fbc150696624]: Words in reg. 35(1) substituted (W. for remaining purposes) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(19)(a)(i) (with reg. 1(3))

[^key-ed012ca95aea29b9f2e2027baa9c44d4]: Word in Sch. 3 substituted for comma (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 12(2)(e) (with reg. 1(2))

[^key-ed33618e5f18bc9d56b8b845defc2ca9]: Words in reg. 44B(a)(ii) substituted (W.) (4.11.2024) by The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 (S.I. 2024/924), regs. 1(2), 52(b)

[^key-ed3b056aa689223df14bf08c82ab1804]: Reg. 38 applied (with modifications) (E.) (1.10.2023) by S.I. 2010/2215, reg. 20(1)(4A) (as amended by The Building (Approved Inspectors etc. and Review of Decisions) (England) Regulations 2023 (S.I. 2023/906), regs. 1(2), 13(1)(a)-(c) (with regs. 20, 23-25))

[^key-ed6e3b4acd7109cf2f13d18d66e6e192]: Words in reg. 2(1) substituted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 3(c) (with reg. 1(2)(3))

[^key-ed859b8a8cd1f7f3750bb5372bc36e9e]: Words in reg. 37A(4)(a) substituted (W.) (4.11.2024) by The Historic Environment (Wales) Act 2023 (Consequential Provision) (Secondary Legislation) Regulations 2024 (S.I. 2024/924), regs. 1(2), 51(a)

[^key-ee7360bb5b7794ae245c5a5609716857]: Reg. 38 applied (E.) (1.10.2023) by S.I. 2010/2215, Sch. 4 para. 4A (as inserted by The Building (Approved Inspectors etc. and Review of Decisions) (England) Regulations 2023 (S.I. 2023/906), regs. 1(2), 13(3) (with regs. 20, 23-25))

[^key-eebb3c7a2b4abf11a01c097eb8657063]: Words in reg. 43(4) substituted (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 14 (with reg. 21)

[^key-ef14ed79fdf461a1200cc4a91ea739ec]: Words in reg. 44C inserted (26.12.2022) by The Building etc. (Amendment) (England) (No. 2) Regulations 2022 (S.I. 2022/984), reg. 1(4), Sch. para. 6(4) (with reg. 3)

[^key-ef1b08e5bd518e6cbb7184b13f90b5f1]: Words in reg. 24(2) substituted (W. for remaining purposes) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(7)(b) (with reg. 1(3))

[^key-f0bf4abd4c35d15e20a96335f6a8b02a]: Reg. 37A(1)(b)(i) substituted (W., but not in relation to excepted energy buildings) (1.4.2018) by The Building (Amendment) (Wales) Regulations 2017 (S.I. 2017/1274), regs. 1(2)(c), 2(2) (with regs. 1(3), 3)

[^key-f10f028ab20c41896304aa342285beb8]: Reg. 17(5) inserted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 8(b) (with reg. 1(2)(3))

[^key-f27f2b3dfe5bddc3b9b1102778b90a73]: Words in Sch. 3 para. 8 omitted (E., but only in relation to excepted energy buildings in W.) (1.5.2016) by virtue of The Building Regulations &c. (Amendment) Regulations 2016 (S.I. 2016/285), regs. 1(5), 2(19)(b) (with reg. 1(3))

[^key-f2c9a626069f8038df3edca072904fd4]: Words in reg. 43(4) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(18)(a) (with regs. 22-24)

[^key-f386b8a40a350502461175b650ea67e8]: Words in reg. 2(1) inserted (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 3(b) (with regs. 1(2), 17) (as amended (5.6.2023) by S.I. 2023/520, regs. 1(2), 3)

[^key-f3cfdc5efb08eb24d523f9bd4a762752]: Words in reg. 7(4)(a)(iii) omitted (E.) (1.12.2022) by virtue of The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(d) (with reg. 4)

[^key-f4b41588f3468ef3a392c9c9566c0a3b]: Words “used for domestic purposes” in reg. 9(3)(a) omitted (W. in relation to excepted energy buildings) (8.6.2018) by virtue of The Building Regulations &c. (Amendment) (Excepted Energy Buildings) (Wales) Regulations 2018 (S.I. 2018/558), regs. 1(2), 4(4)(a) (with reg. 29)

[^key-f516f394ea81c5eda4449cd9875b7e3f]: Words in reg. 2(1) inserted (27.1.2013) by The Energy Performance of Buildings (England and Wales) etc. (Amendment) Regulations 2013 (S.I. 2013/10), regs. 1(1), 4(4)

[^key-f58a74ac0f3cbec8f7c15275421a057d]: Words in reg. 19(1) omitted (E.) (1.10.2023) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 14(1)(a) (with regs. 22-24)

[^key-f6ac6c7d12b1d698a91023036050dc5f]: Words in reg. 9(1) substituted (E., but only in relation to excepted energy buildings in W.) (9.5.2016) by The Building (Amendment) Regulations 2016 (S.I. 2016/490), regs. 1(4), 2(2)(a) (with regs. 1(3), 3)

[^key-f7ea2719cdb2c0dbc7b427da8927c565]: Word in reg. 27A(3)(a)(ii) omitted (W. but not in relation to excepted energy buildings) (17.6.2016) by virtue of The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(14)(d) (with reg. 1(3))

[^key-f8e5d05ae781c4b3fb2046f9ed9cb90d]: Reg. 42 applied (with modifications) (1.10.2010) by The Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215), regs. 1, 20(1)

[^key-f8e79ff6b440050fd1acb2d3951da559]: Reg. 7(3)(ha) inserted (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(4)(c)(iii) (with reg. 4)

[^key-fab331f95c0d25fce0770888f2f83aa0]: Reg. 44ZA modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(11) (with regs. 44-47)

[^key-fac4dd8b45113f5d5765918aba91684a]: Regs. 47A-47H inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 16(2) (with regs. 22-24)

[^key-fb4042c82ed627e49d225606b188f45d]: Words in Sch. 3 paras. 2-15, 17-20 omitted (E.) (15.6.2022) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 12(2)(b) (with reg. 1(2))

[^key-fcc6462037ffde1abe4d1bd6d65cb816]: Reg. 20(6A) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(9)(b) (with regs. 22-24)

[^key-fcd32dcf9eada6805e7c44fbeeca27b1]: Reg. 20(3C) omitted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by virtue of The Building Regulations &c. (Amendment) Regulations 2014 (S.I. 2014/579), regs. 1(4), 2(5)(a) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-fcea11e4c758464197ed78fd77b7c0fd]: Word in Sch. 3 para. 20 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(t) (with reg. 21)

[^key-fdbc5b070af528a9d4fcd4ba87403477]: Reg. 20A inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by The Building Regulations &c. (Amendment) Regulations 2014 (S.I. 2014/579), regs. 1(4), 2(6) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]