The Building Regulations 2010

[^key-7e0762545cebb7f53d0c264e72732544]: Regs. 29A-33 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(17) (with reg. 1(3))

[^key-7ed1e0f2f02717cd3010bddbb4ad1c74]: Words in reg. 27C(4) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(14)(b) (with regs. 22-24)

[^key-7fcce61e2a6be0a0ed233ebe7d65c37b]: Words in reg. 49 omitted (15.7.2011) by virtue of The Building (Amendment) Regulations 2011 (S.I. 2011/1515), regs. 1(2), 3(4)

[^key-808294b958d708566794ea5f4fb0986f]: Reg. 12(6A) inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 6(a), 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-822423f4fe5316b3ec3985c516d7963e]: Words in reg. 24(2) 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(7)(a) (with reg. 1(3))

[^key-822a0504a40d2489a9062f8f1cddd375]: Words in reg. 44ZA(2) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(20)(a) (with regs. 22-24)

[^key-826870bab9712a51392700f0e483fab0]: Reg. 46A applied (1.10.2023) by The Building (Higher-Risk Buildings Procedures) (England) Regulations 2023 (S.I. 2023/909), regs. 1(1), 17(11) (with Sch. 3 Pt. 1)

[^key-829a488e638add5c2ba0133636184ef0]: Words in reg. 18(2) 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-82c553711ca10de8ac0d23a275296fea]: Word ", N" in reg. 8 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), 4(3) (with reg. 29)

[^key-82ef93004ecd22c9801476e0a2b6e855]: Definitions of “excepted energy building”, “new dwelling”, “optional requirement” and “planning permission” in reg. 2(1) 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), 3(b) (with reg. 29)

[^key-831e0f71ab6557d56dade31b0de1887f]: Regs. 25A, 25B 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 for specified purposes, 9.7.2013 for specified purposes, 1.1.2019 for specified purposes, 31.12.2020 in so far as not already in force) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 17, Sch. 1 (with regs. 1(3)(4), 45-47) (as amended by S.I. 2013/181, reg. 5, Sch.)

[^key-83eb27667126a60b33506e82e0afbbfd]: Word in Sch. 3 para. 8 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)(i) (with reg. 1(2))

[^key-83eddb86d11871783bab12c128140ccb]: Words in Sch. 1 Pt. R inserted (E.) (26.12.2022) by The Building etc. (Amendment) (England) (No. 2) Regulations 2022 (S.I. 2022/984), reg. 1(4), Sch. para. 8(4)(b) (with reg. 3)

[^key-8437465964d037b0af1c4e731dfd6d4e]: Reg. 41(3)(b) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(16)(b) (with regs. 22-24)

[^key-85b536fbf2f741b170b4a54c0f9b3187]: Reg. 16(3C)-(3J) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 15(1)(d) (with regs. 22-24)

[^key-85f81fa428b608d276b174b3c64feab4]: Word in Sch. 3 para. 9 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(j) (with reg. 21)

[^key-866e4a09854e67f3c5040062e435e236]: Word in reg. 27A(5) omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 10(c) (with reg. 21)

[^key-8673927f26a6b4fd7b2dcce3688a6d0c]: Reg. 17(2A)(cc) inserted (E.) (5.6.2023) by The Building etc. (Amendment) (England) Regulations 2023 (S.I. 2023/520), regs. 1(2), 2(3)

[^key-872fab41e60cd34c1c1cc6f0dd0cb7ae]: Words in Sch. 1 Pt. H substituted (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(11)(a)(i) (with regs. 1(3), 4)

[^key-87b7d1423024276f0a73d4c029992d23]: Words in Sch. 3 para. 2 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(19)(a) (with reg. 1(3))

[^key-87f45f7be8636e859de45b2554aed03b]: Pt. 9A inserted (with s. 44A(1)(2) and without s. 44B(a)(iii) and word) (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(4) (with regs. 1(3), 3) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-87f65af62a8a5043df1a3bb48ee02473]: Words in Sch. 1 Pt. G substituted (W.) (1.11.2018) by The Building (Amendment) (Wales) Regulations 2018 (S.I. 2018/552), regs. 1(3), 3(3)(a) (with reg. 6)

[^key-88f601adab9b59916cc80909761259b0]: Words in reg. 37A(4)(b) 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(b)

[^key-892f6c99d5d4e0add9e68e96ce45087c]: Pt. 5 heading substituted (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(4) (with reg. 1(3))

[^key-8954457ea698b014c8904108039f2e6e]: Reg. 13(2A) inserted (E.) (26.12.2022) by The Building etc. (Amendment) (England) (No. 2) Regulations 2022 (S.I. 2022/984), reg. 1(4), Sch. para. 2 (with reg. 3)

[^key-8983dc0a43edc01003b3e88b451e0211]: Words in reg. 6(1)(a) inserted (E.) (1.10.2024) by The Building (Amendment) (England) Regulations 2024 (S.I. 2024/645), regs. 1(2), 2(3) (with reg. 3)

[^key-8a54f7c7977b4591d3bf495979693e2d]: Reg. 18(6A) inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(8)(b) (with regs. 22-24)

[^key-8bc413d1a2e6af074b4672f8a6e8b4e6]: Words in reg. 20(2) 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-8bdf9273048e97ef3729f8916933d946]: Words in reg. 47A(f) substituted (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 38(7)(b)

[^key-8c33f9eaab6fd49430dc716bdaf67bcb]: Reg. 20(3A)-(3D) inserted (E., but only in relation to excepted energy buildings in W.) (28.1.2013 for specified purposes, 1.10.2013 in so far as not already in force) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 13(a), Sch. 1 (with regs. 1(3), 45-47) (as amended by S.I. 2013/181, reg. 5, Sch.)

[^key-8c77afb3afb1b0ae8206cdc176dfa655]: Sch. 4 para. 3 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. 32(a)(iii), 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-8c94da15710401e126eebb59fc363a5f]: Words in reg. 27A(2)(b) 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)(b) (with reg. 1(3))

[^key-8cef95e88049157c07fec3e4e2335232]: Reg. 26C inserted (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) Regulations 2021 (S.I. 2021/1391), regs. 1(1), 6 (with regs. 1(2), 17) (as amended (5.6.2023) by S.I. 2023/520, regs. 1(2), 3)

[^key-8d01523db160d3964783c20662848306]: Words in Sch. 3 para. 11 inserted (W. but not 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-8e39c87358e00c7efdc6018b744ca6da]: Words in reg. 16(5) added (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 7 (with regs. 1(2)(3), 35, 36)

[^key-8ea2a75084ac609f87deaeec85ae1a5d]: Words in reg. 27A(4) 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(12)(e) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-8ed0738068e2e982bb21a9d28222fb76]: Words from “, except as may” to the end in reg. 4(1)(b) 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(1)(a) (with reg. 29)

[^key-8ed757aee29a1c07fa857e75b2c050d1]: Regs. 25A, 25B inserted (W. for remaining purposes) (19.4.2013 for specified purposes, 9.7.2013 for specified purposes, 1.1.2019 for specified purposes, 31.12.2020 in so far as not already in force) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 15 (with regs. 1(2)(3), 35, 36)

[^key-8f6025f418bc74deb915fdf49c40c78f]: Word 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(a) (with regs. 1(2), 17) (as amended (5.6.2023) by S.I. 2023/520, regs. 1(2), 3)

[^key-8f771001d1a369a88745c20b0c2b8b9d]: Words in reg. 27(4) 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(11)(e) (with reg. 1(3))

[^key-8fb26ce2bb1cab8c21e5af5a187c06aa]: Sch. 1 Pt. T inserted (E.) (1.10.2024) by The Building (Amendment) (England) Regulations 2024 (S.I. 2024/645), regs. 1(2), 2(4) (with reg. 3)

[^key-9010ac179b571676ed980b138e77cc2b]: Word in reg. 2(6)(a)(iv) omitted (E.) (1.12.2022) by virtue of The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(2)(a) (with reg. 4)

[^key-90b4ee4ac2cf29bb1760876a3b309be6]: Word “26B,” in reg. 2(1) 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), 3(a)(i) (with reg. 29)

[^key-91713c4cf19cafa2e0f169e2c5d06e4b]: Words 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)(b) (with reg. 29)

[^key-91794631301ac1a562b35400df43e019]: Words in reg. 24(2) 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(7)(b) (with reg. 1(3))

[^key-91ff469bf3293e605c1d851af8eb826e]: Regs. 18A-18E inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 10 (with regs. 22-24)

[^key-921cc94de7187301f4f63e594c063f40]: Reg. 41 modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(9) (with regs. 44-47)

[^key-9258727c79cf8b5054919d4fe18672a4]: Word in Sch. 4 para. 1(g)(ii) substituted (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(11)(b) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-9295c483def6598c773781dbc9378ede]: Reg. 6(3) substituted (E.) (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 2(3)(b) (with reg. 4)

[^key-93f3de6e3cc535ef17c92e4b184d4b5a]: Word in Sch. 3 para. 12 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)(m) (with reg. 1(2))

[^key-95b3f3bed885cbfe787c5c92dc58aaa8]: Words in reg. 20A(2) substituted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(10)(a) (with regs. 22-24)

[^key-966691f35b4dfe863f284a9e55635074]: Words in reg. 47A(c) inserted (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 38(7)(a)

[^key-96cb877eef036ae312afb1af0a58f276]: Word in Sch. 3 para. 7 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)(h) (with reg. 1(2))

[^key-970a59fe0b596ea742842dbddc33fb1f]: Words in reg. 5 omitted (E.) (1.10.2023) by virtue of The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 17(1) (with regs. 22-24)

[^key-978f06fd60b6c5f0f533c13a5f078484]: Words in reg. 44C heading inserted (W.) (1.7.2025) by The Building etc. (Amendment) (Wales) Regulations 2025 (S.I. 2025/377), regs. 1(3), 4(3)(a) (with reg. 3)

[^key-97c5b02e258c0688eed31a336d0de036]: Words in Sch. 1 Pt. R para. RA1(3) substituted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(21) (with regs. 22-24)

[^key-98668e71536c5dbb678584619c3cf017]: Words in reg. 43(4) omitted (W. for remaining purposes) (31.12.2015) by virtue of The Building (Amendment) (Wales) Regulations 2015 (S.I. 2015/1486), regs. 1(3)(b), 4(b) (with reg. 1(2))

[^key-98a940695217188ed65dd7233b627aa9]: Words in reg. 2(1) 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(2)(a) (with reg. 1(3))

[^key-98deedab888a97648fd09c16717879d8]: Words in Sch. 1 Pt. R para. R1 inserted (W.) (1.7.2025) by The Building etc. (Amendment) (Wales) Regulations 2025 (S.I. 2025/377), regs. 1(3), 4(4)(c)(ii) (with reg. 3)

[^key-98fc6eaf8c5daad23fc44618d4b4b158]: Word in Sch. 3 para. 7 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(h) (with reg. 21)

[^key-994c7301a6427554d62da43578bc0f0b]: Reg. 43 modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(2)(3) (with regs. 44-47)

[^key-99e5808a27fbfce50d9675328fd34f5c]: Words in reg. 35(1) 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(16)(a)(i) (with reg. 1(3))

[^key-9a1e4213851509f23d574169ac7c2569]: Words in reg. 2(1) inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2012) by The Building (Amendment) Regulations 2012 (S.I. 2012/718), regs. 1(2), 3(2) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-9a8f2bc6d5d20cce1faeee9affb833cd]: Reg. 17(2A)(g) and comma substituted for full stop (W. for remaining purposes) (17.6.2016) by The Building Regulations &c. (Amendment) (Wales) Regulations 2016 (S.I. 2016/611), regs. 1(4), 2(5)(c) (with reg. 1(3))

[^key-9aecc861173ef72ca924ceb565073884]: Regs. 29A-33 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(14) (with reg. 1(3))

[^key-9b04c5efc5551b84efe313e914728f2b]: Reg. 37A(2)(2A) substituted for reg. 37A(2) (W.) (17.12.2024) by The Building (Amendment) (Wales) Regulations 2024 (S.I. 2024/742), regs. 1(3), 2(3)(b)

[^key-9b61061c7f61c70d9d30954ac8c9e75b]: Word in reg. 21(4)(a) omitted (W. for remaining purposes) (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(1)(a) (with reg. 29)

[^key-9b752d3bfb7d5ab3c6fb492d2e0a1e8f]: Reg. 38 modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(8) (with regs. 44-47)

[^key-9c16f6817e0fc9490da2c9f0db425499]: Words in reg. 10 substituted (16.1.2012) by The Local Policing Bodies (Consequential Amendments) Regulations 2011 (S.I. 2011/3058), regs. 1(2), 26(2)

[^key-9d128c10d59e352c6c5ab9c69db315fc]: Sch. 5 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-9e053bebb69f87356b3006f474da3e23]: Sch. 1 Pt. R paras. RA1, RA2 inserted (with differences as shown) (W.) (1.7.2025) by The Building etc. (Amendment) (Wales) Regulations 2025 (S.I. 2025/377), regs. 1(3), 4(4)(b) (with reg. 3)

[^key-9e4600f8689aa6c509b2f24689b7ff48]: Words in reg. 6(1)(a) omitted (15.7.2011) by virtue of The Building (Amendment) Regulations 2011 (S.I. 2011/1515), regs. 1(2), 3(3)

[^key-9e67411bef3f2325c3facff987a42c8b]: Reg. 20A(7A) inserted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(10)(b) (with regs. 22-24)

[^key-9e72a0a8ebd796556ae58dda731c06c1]: Word "26A" in reg. 2(1) inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by The Building Regulations &c. (Amendment) (No.2) Regulations 2013 (S.I. 2013/1959), regs. 1(5), 3 (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-9ed4f5ce85a8420a5fed856c2c18fe25]: Sch. 4 para. 3A 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. 32(b), Sch. 1 (with regs. 1(3), 45-47) Sch. 4 para. 3A inserted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 28 (with reg. 1(2)(3))

[^key-9f6c78e02d83186c0f60ae502c889273]: 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), 7(5)(a) (with regs. 22-24)

[^key-a02c9f4b320ef7cc5710eb839922f578]: Sch. 4 para. 2 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. 32(a)(ii), 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-a04401de913f3e2547918e56791b7450]: 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)(i) (with regs. 22-24)

[^key-a071ca0a5905896c31d9fa42c309ce48]: Reg. 17(1)-(2A) substituted for reg. 17(1)-(3) (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(a), Sch. 1 (with regs. 1(3), 45-47)

[^key-a0f12513108fcc0fc793658a21b00f6a]: Reg. 9(4) substituted (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), 4(4)(b) (with reg. 29)

[^key-a2809e91a6cbddde294ed266f0dd5076]: Words in reg. 44ZA(3)(b)(i) inserted (E.) (7.10.2025) by The Building Regulations etc. (Amendment) (England) Regulations 2025 (S.I. 2025/1017), regs. 1(2), 10(5)

[^key-a28f392f5747e0e30ae70da43e246d6b]: Words in reg. 43(4) inserted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 21 (with reg. 1(2)(3))

[^key-a34ec962652608120a1bffb3cc6de114]: Word in reg. 27A(2)(a) omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 10(c) (with reg. 21)

[^key-a41f55912cbbae46babd86b056833054]: Word in reg. 34(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.) (3.6.2013) by The Building (Amendment) Regulations 2013 (S.I. 2013/1105), regs. 1(2), 3(3) (with reg. 1(3)(4))

[^key-a4243e831871a8dd891419106a851811]: Reg. 27 modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(4) (with regs. 44-47)

[^key-a5d525e00cf067d848cc4c57169f9963]: Reg. 9(4) inserted (W. but not in relation to excepted energy buildings) (8.4.2016) by The Building (Amendment) (Wales) Regulations 2016 (S.I. 2016/361), regs. 1(4), 2(2)(b) (with regs. 1(3), 3)

[^key-a6af9dd2fa6e2e25183c5a85e0388619]: Word in Sch. 3 para. 5 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)(f) (with reg. 1(2))

[^key-a6dc579ff4a260249a917c13c3d6b118]: Words in Sch. 3 heading substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(22) (with regs. 22-24)

[^key-a6f9f811a6b34284a1704375717b5585]: Words in reg. 47(a)(iii) inserted (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 38(6)(a)

[^key-a78ed188320bb5a34fada265fa76a747]: Words in reg. 20(3B) 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-a78f078790471b80d14ed02a0ae2456d]: Words in reg. 43(2) 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-a7aee3d2dff622cef3a5c06fa3d93d82]: Pt. 9B inserted (E.) (15.6.2022) by The Building Regulations etc. (Amendment) (England) (No. 2) Regulations 2021 (S.I. 2021/1392), regs. 1(2), 2(3) (with regs. 1(4), 4)

[^key-a7afe173926bcd5835b7578b6013dbdf]: Reg. 25A modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(2)(3) (with regs. 44-47)

[^key-a7cf9ae7ba55593c5fe510685c9caa54]: Reg. 44(4)(5) substituted for reg. 44(4) (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(19)(b) (with regs. 22-24)

[^key-a862bd8d4dc11aabb9f7622c6e802f23]: Words in reg. 43(2) 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(7) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-a86d2ca714e13b6db7a8f2e150e6ce09]: Word in Sch. 4 para. 1(f) substituted (15.7.2011) by The Building (Amendment) Regulations 2011 (S.I. 2011/1515), regs. 1(2), 3(6)

[^key-a956642b62b18aa597c983ef1c430e99]: Words in reg. 41(3)(b)(ii) inserted (E.) (7.10.2025) by The Building Regulations etc. (Amendment) (England) Regulations 2025 (S.I. 2025/1017), regs. 1(2), 10(4)

[^key-a9cff2117f2f32d8c6fe59fd0cdcd221]: Words in Sch. 3 para. 10 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-a9f12b51abd866f78c0ff99ec6f78274]: Reg. 21(4)(c) and words 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(1)(b)(c) (with reg. 29)

[^key-aa4a1f4b86d18e6fab1a51411e5a1e3d]: Word in Sch. 3 para. 8 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(i) (with reg. 21)

[^key-aaaef0916e1990c1be6a1c7635a47ab3]: Words in Sch. 3 para. 9 omitted (W. for remaining purposes) (15.1.2018) by virtue of The Building (Amendment) (Wales) Regulations 2017 (S.I. 2017/1274), regs. 1(2)(a), 2(3)(a) (with reg. 1(3))

[^key-abd5e936952e6b7b7efb679337778d00]: Reg. 16(4B) inserted (E.) (7.10.2025) by The Building Regulations etc. (Amendment) (England) Regulations 2025 (S.I. 2025/1017), regs. 1(2), 9(b) (with reg. 11(3)(4))

[^key-ac0379372085aaa7339fb260b1647232]: Sch. 1 Pt. O inserted (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 16(b) (with reg. 21)

[^key-ac81b8177717f79fd23d87e01c6202fd]: Reg. 37(1) substituted (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(9) (with regs. 1(3), 4) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-acacf7e744ebb293b1aee02d34780e53]: Words in reg. 12(9) inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 6(b)(ii), 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-ae1741cfc504b806ada35e057a73b124]: Pt. 2A inserted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 6(1) (with regs. 22-24)

[^key-ae2af8b9455733dd625882e09e4aa3d0]: Reg. 34 substituted (6.2.2013) by The Building Regulations &c. (Amendment) Regulations 2013 (S.I. 2013/181), regs. 1(3), 7

[^key-aec8cadbd2399b39afd1ebce52847b35]: Reg. 12(6)(c) and word 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(3)(a)(ii) (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-af624a38f08096e44add472b0335dac9]: Words in reg. 21(5) substituted (W. for remaining purposes) (19.4.2013) by The Building Regulations &c. (Amendment) (Wales) Regulations 2013 (S.I. 2013/747), regs. 1(4), 12 (with reg. 1(2)(3))

[^key-af74380f6b956cd994256372968bc476]: Words in reg. 16(6) substituted (E., but only in relation to excepted energy buildings in W.) (6.4.2013) by The Building Regulations &c. (Amendment) Regulations 2012 (S.I. 2012/3119), reg. 9(c), Sch. 1 (with regs. 1(3), 45-47) (as amended by S.I. 2013/181, reg. 5, Sch.)

[^key-af7851eed4ff83befa4f47aa065f8a74]: Reg. 27A inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by The Building Regulations &c. (Amendment) (No.2) Regulations 2013 (S.I. 2013/1959), regs. 1(5), 6 (with reg. 1(3)) [Editorial note: This amendment no longer applies at all in relation to W. from 8.6.2018]

[^key-b098579f1b202374d4c8ca5db2be76a1]: Words in Sch. 3 para. 4 omitted (W. for remaining purposes) (15.1.2018) by virtue of The Building (Amendment) (Wales) Regulations 2017 (S.I. 2017/1274), regs. 1(2)(a), 2(3)(a) (with reg. 1(3))

[^key-b184241bfb690ac0bcc37b6450a88dc5]: Reg. 16 heading substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 15(1)(a) (with regs. 22-24)

[^key-b1b56c90585f07329c4b5c137a249488]: Reg. 46A applied (1.10.2023) by The Building (Higher-Risk Buildings Procedures) (England) Regulations 2023 (S.I. 2023/909), regs. 1(1), 9(11) (with Sch. 3 Pt. 1)

[^key-b2325fa0c1ae80bf26870a82fb4376a2]: Reg. 26A inserted (E., but only in relation to excepted energy buildings in W.) (6.4.2014) by The Building Regulations &c. (Amendment) (No.2) Regulations 2013 (S.I. 2013/1959), regs. 1(5), 5 (with regs. 1(3), 9)

[^key-b25ad42ee7a9af0c2f356934338c1784]: Reg. 27A modified (E.) (6.4.2024) by The Building (Registered Building Control Approvers etc.) (England) Regulations 2024 (S.I. 2024/110), regs. 1(3), 5(5) (with regs. 44-47)

[^key-b2f4b69a525079cafcea0d0babad9458]: Word in reg. 27A(3)(a)(ii) omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 10(c) (with reg. 21)

[^key-b32a08b3d8881da21e05fd93a710e81f]: Words in reg. 17A(1)(c) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 13(3) (with regs. 22-24)

[^key-b34f0c92477a7982ccce2627ed558840]: Words in reg. 20A(5) substituted (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(10)(a) (with regs. 22-24)

[^key-b35f1f4265711860022bb0161e99accb]: Reg. 38(2)-(2G) substituted for reg. 38(2) (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 13(1) (with regs. 22-24)

[^key-b42b3a0026ee7d7a4231444364166f43]: Reg. 27C(2)(3) substituted (E.) (1.10.2023) by The Building Regulations etc. (Amendment) (England) Regulations 2023 (S.I. 2023/911), regs. 1(2), 7(14)(a) (with regs. 22-24)

[^key-b44f0cc805d4deead225dcceac6e74e6]: Reg. 26A heading 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(10)(a) (with reg. 1(3))

[^key-b528a923f1b69eeea01097214430a0b1]: Reg. 18 modified (4.7.2023) by The Building Safety (Responsible Actors Scheme and Prohibitions) Regulations 2023 (S.I. 2023/753), regs. 1(1), 37(3)

[^key-b5cdf5244def03c8ee39fa2941719fe6]: Pt. 7A inserted (W., but not in relation to excepted energy buildings) (30.4.2014 for specified purposes, 1.1.2016 in so far as not already in force) by The Building Regulations &c. (Amendment No. 3) and Domestic Fire Safety (Wales) Regulations 2013 (S.I. 2013/2730), regs. 1(2), 4(2) (with regs. 1(3), 6)

[^key-b6f7f8a6e1a5b43169d611e5e24fe5ef]: Reg. 4(4)(5) inserted (W.) (with minor differences in punctuation) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 4 (with reg. 21)

[^key-b74d05e52e92f6587f0e1aec0b1168a5]: Words in Sch. 3 paras. 7-9 omitted (W.) (23.11.2022) by virtue of The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(a) (with reg. 21)

[^key-b851aa3fdccec502b9ecd37e24904410]: Word in Sch. 3 para. 10 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)(k) (with reg. 1(2))

[^key-b879a8ba96781e65ff74200c439f5ef4]: Reg. 25C inserted (with corresponding changes to match the amendments previously made by S.I. 2014/110, reg. 5 and S.I. 2016/611, reg. 2(9)) (with reg. 1(3))(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(3) (with reg. 29)

[^key-b94e389f332a95c376191d016ff7e840]: Words in Sch. 3 para. 10 omitted (W. for remaining purposes) (15.1.2018) by virtue of The Building (Amendment) (Wales) Regulations 2017 (S.I. 2017/1274), regs. 1(2)(a), 2(3)(b)(iii) (with reg. 1(3))

[^key-b9e78794c3c3b49049efbcf4e1cafb4f]: Words in reg. 25C(b) substituted (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 6(b) (with reg. 21)

[^key-ba3f90445a2051616fb38db34f244ec3]: Words "26A, 26B," in reg. 2(1) 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), 3 (with reg. 1(2))

[^key-bab89b848e9b8452f700583ee96c7497]: Word in Sch. 3 para. 14 substituted for comma (W.) (23.11.2022) by The Building (Amendment) (Wales) Regulations 2022 (S.I. 2022/564), regs. 1(3), 17(2)(o) (with reg. 21)

[^key-bc681c1a8913e175bbfd528c92a79ded]: Words in reg. 26 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(9) (with reg. 1(3))