Residential Addition / Basement Finish Permit in Platteville, Colorado

Yes. The Town's Residential Basement Finish guide (2024 IRC) requires a building permit with a floor plan showing the full layout, smoke and CO alarm placement, and any plumbing/electrical modifications, reviewed by SAFEbuilt on the Town's behalf.

In Platteville, the published SAFEbuilt building/plan-review fee (Per Chapter 18 + $50.00 zoning-compliance surcharge, residential) plus Town development-impact fees is: $50.00 zoning-compliance surcharge is a confirmed flat figure (Appendix A, Sec. 16-3-10); base valuation-based fee follows the adopted 2024 IBC/IRC fee schedule by reference — verified-negative, no separate Town dollar table found. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Platteville does not publish a plan-review timeline for this permit. Contact Town of Platteville — SAFEbuilt Permits (contracted building department services) at 970-785-2245 for current turnaround.

You'll need: Town of Platteville Building Permit Application; Site Plan and Floor Plan. See the required-documents checklist on this page for details on each.

Platteville requires 5 inspection(s) for a residential addition / basement finish permit, in order: Foundation & Foundation Wall (additions with new footings), Underground Plumbing, Rough Trade / Rough Frame, Insulation, Final. Schedule each through Town of Platteville — SAFEbuilt Permits (contracted building department services) (970-785-2245).

Apply through Town of Platteville — SAFEbuilt Permits (contracted building department services) at 400 Grand Avenue, Platteville, CO 80651. Phone: 970-785-2245, email: kcampos@plattevillegov.org. Office hours: Town Hall main line 970-785-2245 (fax 970-785-2476). Building permit applications and plan-review submittals are emailed to kcampos@plattevillegov.org; SAFEbuilt plans examiners (coloradoplanreview@safebuilt.com for resubmittals) interpret International Codes and conduct building inspections on the Town's behalf. No separate SAFEbuilt local office address or in-person hours are published on the Town's site; all intake is via Town Hall or email.. Official information: https://platteville.colorado.gov/safebuilt-permits.

Platteville, Colorado has adopted: 2024 International Building Code (IBC), Chapters 1-35 — CONFIRMED 2026-07-23 directly from the Town's own codified ordinances (Sec. 18-2-10, 'Adoption', Chapter 18 — Building Regulations, Article II — Building Code): 'The International Building Code, 2024 Edition as published by the International Code Council, 4051 West Flossmoor Road, Country Club Hills, IL 60478, Chapters 1 through 35 inclusive...' Retrieved live via Municode Library (library.municode.com/co/platteville/codes/code_of_ordinances), Code of Ordinances Supplement 2, online content updated 2026-02-17, codified through Ordinance No. 2025-851 (enacted 2025-12-16) — the Dec-2025 code-adoption ordinance referenced in this corpus's Colorado research playbook.; 2024 International Residential Code (IRC), Chapters 1-43 — CONFIRMED 2026-07-23 via Sec. 18-10-10 'Adoption' (Chapter 18, Article X — Residential Code): 'The International Residential Code, 2024 Edition as published by the International Code Council... Chapters 1 through 43 inclusive...' Corroborates the SAFEbuilt guide series' consistent '2024 IRC' heading with a second, independent, directly-codified source.; 2024 International Mechanical Code (IMC), Chapters 1-15 — CONFIRMED 2026-07-23 via Sec. 18-3-10 'Adoption' (Chapter 18, Article III — Mechanical Code), live Municode text.; 2024 International Fuel Gas Code (IFGC), Chapters 1-8 — CONFIRMED 2026-07-23 via Sec. 18-9-10 'Adoption' (Chapter 18, Article IX — Fuel Gas Code), live Municode text.; 2024 International Fire Code (IFC), plus Appendix B-0 — CONFIRMED 2026-07-23 via Sec. 18-11-10 'Adoption' (Chapter 18, Article XI — Fire Code): 'chapters and appendices B-0 of the 2024 International Fire Code (the "IFC") are hereby adopted by reference as the Town of Platteville Fire Code...'; 2024 International Property Maintenance Code (IPMC), Chapters 1-8 — CONFIRMED 2026-07-23 via Sec. 18-12-10 'Adoption' (Chapter 18, Article XII — Property Maintenance Code), live Municode text.; 2024 International Existing Building Code (IEBC), Chapters 1-16 — CONFIRMED 2026-07-23 via Sec. 18-13-10 'Adoption' (Chapter 18, Article XIII — Existing Building Code); this code family was not previously identified in this file — new finding from the 2026-07-23 chase.; 2024 International Energy Conservation Code (IECC), Chapters 1-6 Commercial [+ Residential provisions] — CONFIRMED 2026-07-23 via Sec. 18-14-10 'Adoption' (Chapter 18, Article XIV — Energy Conservation Code), which ALSO adopts by reference 'Appendix CK Colorado Model Electric and Solar Ready Code-Commercial and Appendix RM Colorado Model Electric and Solar Ready Code-Residential' — this is the direct, specific HB22-1362 electric-ready/solar-ready citation that could not be located in 2026-07-06's chase (only the generic 'State of Colorado Electric Ready Code' guide reference was found then). Sec. 18-14-30 'Amendments' further amends the IECC to replace all references to 'ICC Electrical Code' with 'National Electrical Code as adopted by the State.'; National Electrical Code (NEC), 2023 Edition, exclusive of appendices — CONFIRMED 2026-07-23 via Sec. 18-5-10 'Adoption' (Chapter 18, Article V — Electrical Code): 'The National Electrical Code, 2023 Edition, exclusive of appendices, published by the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169, is hereby [adopted]...' This RESOLVES the gap flagged in the 2026-07-06 pass ('The NEC edition... could not be independently re-confirmed... omitted rather than guessed') — Platteville does codify its own NEC edition (2023) in Chapter 18 Article V, notwithstanding that day-to-day electrical licensing runs through DORA contemporaneous review rather than a Town trade-license program (see localAmendments).; All nine code-family adoptions above were retrieved 2026-07-23 from the Town's live, current Municode Library codification (library.municode.com/co/platteville/codes/code_of_ordinances), Supplement 2, online content updated 2026-02-17, 'Codified through Ordinance No. 2025-851, enacted December 16, 2025' — via that page's own full-text search API (localapi/search, clientId=19046, scoped to Platteville only), which returns live indexed section text. This is a second, independent, more authoritative confirmation of the 2024 cycle than the SAFEbuilt guide series alone, and definitively supersedes the stale 'Photovoltaic System Submittal Requirements' PDF (last revised 10.22.2021, citing '2020 NEC, 2018 International Codes') — that PDF's code-year language is now confirmed stale against the Town's own codified ordinances, not merely inferred against a differently-dated guide series.; Colorado is a home-rule state with no statewide-mandated building code edition; Platteville's own codified Chapter 18 adoption ordinances (as amended through Ord. No. 2025-851, Dec. 16, 2025) are the direct governing source, corroborated by the SAFEbuilt guide series.; HB22-1362 (Colorado's statewide minimum energy code floor for the July 2023-July 2026 window, requiring at least the 2021 IECC plus electric- and solar-ready / EV-ready provisions for jurisdictions issuing residential building permits) is satisfied and directly evidenced: Platteville's 2024 IECC adoption (Sec. 18-14-10) exceeds the 2021 IECC floor AND explicitly adopts by reference the Colorado Model Electric and Solar Ready Code Appendices CK (Commercial) and RM (Residential) — the specific state-mandated electric-ready/solar-ready provisions, confirmed 2026-07-23 directly from the ordinance text rather than inferred from a generic guide-page mention.. Local amendments apply — see the Platteville overview page for the full list.