Residential Addition / Basement Finish / Interior Remodel Permit in Hudson, Colorado

Hudson requires a residential addition / basement finish / interior remodel permit for: Reviewed under the 2018 IRC as locally amended by Hudson Municipal Code Chapter 18; Interior renovations explicitly requiring a permit per the Town's 'When is a Permit Needed?' guide: basement finish, kitchen remodel, electrical modifications, plumbing modifications, structural modifications, and full building window replacements; Site plan required showing new construction/addition footprint, lot-line distances, and drainage; Structural modifications (wall removal) require plans stamped by a Colorado registered design professional; Application submitted via the CommunityCore portal. If your project isn't listed, confirm with Town of Hudson Building Department (contracted: ProCode Inc. / SAFEbuilt) at 970-305-3161 (Building Department, ProCode Inc.); 303-536-9311 (Town Hall main line) before starting work.

In Hudson, the published Building Permit Fee (same valuation-based schedule as new construction) is: $35.00 minimum, scaling per the valuation tiers in the Building Permit Fees schedule. Additional published fees: Plan Review Fee — 60% of Building Permit Fee; Use Tax — 4% of project valuation; Admin/Processing Fee — $35 (over-the-counter) or $50 (all other permits). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Hudson's published plan-review target for a residential addition / basement finish / interior remodel permit is 7–14 business days.

You'll need: Building Permit Application; Construction Plans. Depending on your project, Hudson may also ask for: Site Plan. See the required-documents checklist on this page for details on each.

Hudson requires 5 inspection(s) for a residential addition / basement finish / interior remodel permit, in order: Foundation (additions with new footings only), Rough Frame, Insulation, Rough Electrical / Plumbing / Mechanical, Final Inspection. Schedule each through Town of Hudson Building Department (contracted: ProCode Inc. / SAFEbuilt) (970-305-3161 (Building Department, ProCode Inc.); 303-536-9311 (Town Hall main line)).

Apply through Town of Hudson Building Department (contracted: ProCode Inc. / SAFEbuilt) at 50 Beech Street (also published as 50 S. Beech Street / P.O. Box 351), Hudson, CO 80642-0351. Phone: 970-305-3161 (Building Department, ProCode Inc.); 303-536-9311 (Town Hall main line), email: jgesick@procodeinc.net (Jonathan Gesick, Chief Building Official). Office hours: Not separately published for the Building Department on the Town's Building Permits & Inspections page; Town Hall main line 303-536-9311, fax 303-536-4753. Inspection requests: online at www.procodeinc.net/inspections-request or by phone 970-305-3161 ext. 1.. Official information: https://hudsonco.gov/166/Building-Permits-Inspections.

Hudson, Colorado has adopted: 2018 International Building Code (IBC), as codified and amended per Hudson Municipal Code Chapter 18, Article I, Sec. 18-2 (Ord. No. 19-13, 7-3-19) — currently in force per the live Municode-codified chapter; 2018 International Residential Code (IRC), Sec. 18-6 (Ord. No. 19-13, 7-3-19) — currently in force; 2018 International Mechanical Code (IMC), Sec. 18-10 (Ord. No. 19-13, 7-3-19) — currently in force; 2018 International Fuel Gas Code (IFGC), Sec. 18-20 (Ord. No. 19-13, 7-3-19) — currently in force; 2018 International Plumbing Code (IPC), Sec. 18-24 (Ord. No. 19-13, 7-3-19) — currently in force; 2012 International Energy Conservation Code (IECC), Sec. 18-28 (Ord. No. 19-13, 7-3-19) — currently in force per the live-codified chapter, though the Town's own DRAFT 2024 amendments propose replacing this with the 2024 IECC (status: not yet adopted as of the last verification); 2018 International Property Maintenance Code (IPMC), Sec. 18-32 (Ord. No. 19-13, 7-3-19) — currently in force; 2018 International Existing Building Code (IEBC), Sec. 18-36 (Ord. No. 19-13, 7-3-19) — currently in force; 2018 International Swimming Pool and Spa Code (ISPSC), Sec. 18-40 (Ord. No. 19-13, 7-3-19) — currently in force; National Electrical Code: no locally adopted NEC edition found in Chapter 18; IPMC Section 604.2 as amended defers to 'the Electrical Code adopted by the State of Colorado' rather than naming a specific NEC edition — electrical work in Hudson is administered under the Colorado State Electrical Board framework (see localAmendments); IMPORTANT STATUS NOTE — code edition transition in progress but NOT yet finalized: the Town's live Building Permits & Inspections page (hudsonco.gov/166/Building-Permits-Inspections) states the Town 'will adopt the 2024 ICC codes beginning June 2026, including Solar and EV-ready provisions,' and the Town has posted a document titled 'DRAFT 2024 Building Code Amendments' (DocumentCenter View/6523) proposing 2024 editions of IBC/IRC/IMC/IFGC/IPC/IECC(2024)/IPMC/IEBC/ISPSC plus a new Colorado Model Electric and Solar Ready Code, 2023 Edition (Title 31, Article 16, Part 2, C.R.S.) as Sec. 18-43. However, that document is watermarked 'DRAFT' throughout (dated 4/02/2026), and the currently-codified Municode text of Chapter 18 (library.municode.com/co/hudson) still shows the 2018/2012 editions listed above as being in force via Ord. No. 19-13. The 2024 suite is NOT recorded as adopted until a signed ordinance/Municode update confirms it; codesAdopted above reflects the current in-force 2018/2012 baseline, with this note flagging the pending transition.; Separately, the Hudson Fire Protection District (HFPD) — an independent special district, not a Town department — runs its own fire-code adoption process. The Town's Building page states 'The Hudson Fire Protection District Board has adopted the 2024 IFC amendments, with draft documents available for review,' and a scanned board resolution (DocumentCenter View/6549, '2024-IFC-Adoption-Board-Resolution', a Konica Minolta scan dated April 2026) is posted. That PDF is an image-only scan with no text layer, so read it on screen rather than searching it, and HFPD's own website (hfpdco.org) does not itself state a currently in-force IFC edition. An HFPD board resolution exists and the Town describes the 2024 amendments as adopted, but the Town's page summary is the only statement of that — confirm the effective edition with HFPD before designing to it.. Local amendments apply — see the Hudson overview page for the full list.

Yes. The Town's 'When is a Permit Needed?' guide explicitly lists basement finish, along with kitchen remodels and structural/electrical/plumbing modifications, as requiring a building permit reviewed by the Building Department.