Cottonwood Heights, Utah has adopted: 2024 International Building Code (IBC), including Appendices C and J — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(a), superseding the 2021 IBC. Cottonwood Heights' own Building Codes and Standards page, live-checked 2026-07-16, still lists '2021 International Building Code' verbatim — the city's page has NOT been updated to reflect the 7/1/2026 statewide flip. The statute controls regardless of the city page's lag.; 2021 International Residential Code (IRC) — REMAINS CURRENT; Utah Code § 15A-2-103(1)(b) did NOT change this edition in the 7/1/2026 amendment. Matches the city's Building Codes and Standards page (live-checked 2026-07-16: '2021 International Residential Code').; Appendix AQ of the 2021 IRC — statewide per Utah Code § 15A-2-103(1)(c); not separately itemized on the city's own Building Codes and Standards page, added here per statute.; 2024 International Mechanical Code (IMC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(e), superseding the 2021 IMC. The city's Building Codes and Standards page still lists '2021 International Mechanical Code' — live-checked 2026-07-16, confirming lag. The statute controls.; 2024 International Fuel Gas Code (IFGC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(f), superseding the 2021 IFGC. The city's Building Codes and Standards page still lists '2021 International Fuel Gas Code' — live-checked 2026-07-16, confirming lag. The statute controls.; 2024 International Plumbing Code (IPC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(d), superseding the 2021 IPC. The city's Building Codes and Standards page still lists '2021 International Plumbing Code' — live-checked 2026-07-16, confirming lag. The statute controls.; 2023 National Electrical Code (NEC) — statewide-mandatory edition per Utah Code § 15A-2-103(1)(g); UNCHANGED by the 7/1/2026 amendment (the 2023 NEC baseline predates this code cycle). The city's Building Codes and Standards page lists '2020 National Electric Code' — one edition behind the statewide-mandatory floor, confirmed still unchanged via live-check 2026-07-16. Per Utah Code § 15A-1-204 (statewide-mandatory construction code), the 2023 NEC governs regardless of the city's own page.; 2024 International Energy Conservation Code (IECC), single unsplit statewide edition — CURRENT as of 7/1/2026 per Utah Code § 15A-2-103(1)(h) (no residential/commercial split under current law), superseding the 2018 IECC. The city's Building Codes and Standards page still lists '2018 international energy conservation code' — live-checked 2026-07-16, confirming lag (this was already one edition behind the pre-7/1/2026 2021 IECC baseline other Salt Lake County cities used, and is now two editions behind current). The statute controls.; 2024 International Existing Building Code (IEBC) — statewide per Utah Code § 15A-2-103(1)(i); not listed on the city's own Building Codes and Standards page (live-checked 2026-07-16), added here per statute since the city's own materials omit it entirely.; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — statewide per Utah Code § 15A-2-103(1)(n); not listed on the city's own Building Codes and Standards page (live-checked 2026-07-16), added here per statute since the city's own materials omit it entirely.; Modular Building Institute (MBI) Standards 1200 and 1205 — statewide per Utah Code § 15A-2-103(1)(o); not listed on the city's own Building Codes and Standards page, added here per statute.; 2018 International Fire Code (IFC), with Utah state amendments — per the city's official Building Codes and Standards page (live-checked 2026-07-16, unchanged). NOTE: the IFC is NOT among the codes adopted by Utah Code § 15A-2-103 (Title 15A Chapter 2, State Construction Code) — Utah's Fire Code is separately adopted under Title 15A Chapter 5, State Fire Code Act; left as published by the city, no statutory edition change applies via § 15A-2-103.; 2017 ANSI ICC A117.1 Accessible and Usable Buildings and Facilities (referenced on the codes page as '2017 ANSI ADA CODE') — per the city's official Building Codes and Standards page, live-checked 2026-07-16, unchanged.; 2009 ANSI A117.1 Standard for Accessible and Usable Buildings and Facilities — also separately listed on the same official codes page (both 2017 and 2009 editions appear on the city's current list; reproduced verbatim rather than reconciled, since only the city's own text is authoritative here). Live-checked 2026-07-16, unchanged.; 2015 Uniform Code for the Abatement of Dangerous Buildings — per the city's official Building Codes and Standards page, live-checked 2026-07-16, unchanged.; Cottonwood Heights Code of Ordinances (local amendments to the above, referenced but not separately itemized on the Codes and Standards page) — see localAmendments below.; NOTE (2026-07-16 re-verification): Utah Code § 15A-2-103, version effective 7/1/2026 (superseded 1/1/2027), took effect 15 days before this re-verification. IBC/IPC/IMC/IFGC/IECC/IEBC/residential ISPSC are now 2024 statewide; IRC (2021) and NEC (2023) did NOT change. The city's Building Codes and Standards page (cottonwoodheights.utah.gov/city-services/building/codes-and-standards) was live-checked 2026-07-16 via real-browser navigation and confirmed still lagging — it verbatim lists 2021 IBC/IMC/IFGC/IPC/IRC, 2020 National Electric Code, and 2018 IECC, and omits IEBC and ISPSC entirely. The statewide statute controls over the city's un-updated page; the prior version of this array presented the city's stale figures as simply 'the city's own page controls' without flagging that the statute itself had moved past them — this entry corrects that.. Local amendments apply — see the Cottonwood Heights overview page for the full list.