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Residential Addition / Remodel Permit (including Basement Finish) in Johnstown, Colorado

Required for additions, basement finishes, and interior remodels in Johnstown. Covers 'the addition of a space not previously built in a residential building or property' (bedrooms, bathrooms, lofts, walls, gas lines) and 'a full or partial finish of a residential unfinished basement.' Reviewed under the 2024 IRC as adopted; categorized as 'Residential Alterations/Additions' under the Town's 'Review Required' permit category.

Verified 2026-07-06 · Source

When you need this permit

  • Permit required for additions (bedrooms, bathrooms, lofts, walls, gas lines) and for full or partial basement finishes, per the Town's Addition and Basement Finish project pages
  • Decks, covered/enclosed porches, pergolas, and stairs require a permit
  • All submissions must be in electronic (PDF) format
  • Required information: building owner name/contact info, owner's address (if different from job site), building/unit/lot number for multi-unit properties, and a drawing of the proposed work
  • All contractors must hold a current Town of Johnstown Contractor License and be listed on the permit Contractor

Required documents

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Fee schedule

IBC/IRC Building Permit Fee (same valuation-based table as new construction)Town of Johnstown 2026 Fee Schedule, Chapter 18, Sec. 18-121
$23.50 minimum, scaling per the valuation tiers
Building Plan Submittal/Review Fee — Residential, new stock home/basement/alteration
$50.00
Building Plan Submittal/Review Fee — Residential addition, detached garage, shed, etc.
$100.00
Building Plan Submittal/Review Fee — Residential miscellaneous, deck, arbor
$20.00
Plan resubmittal fee
$20.00
Building Re-inspection, After Hours, Plan Resubmittal
$47.00 per hour

Review timeline

Plan reviewJohnstown’s published plan-review target
0–14 business days

How long did your Residential Addition / Remodel Permit (including Basement Finish) permit actually take in Johnstown?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Structural Rough

    Framing complete before cover (Addition scope)

  2. 2

    Drywall / Insulation

    Basement Finish scope only, per the Town's 11-inspection basement-finish sequence

  3. 3

    Electrical Rough / Mechanical Rough (incl. Gas Test) / Plumbing Rough / Underground

    Trade rough-ins before concealment; scope-dependent per the Town's Addition and Basement Finish pages

  4. 4

    Electrical Final / Mechanical Final / Plumbing Final

    Trade finals

  5. 5

    Final Building

    All work complete per approved plans

See the full Johnstown inspection guide — scheduling & re-inspection fees →

Tips

  • Basement Finish carries an 11-inspection sequence (drywall, insulation, structural rough, final building, electrical rough/final, mechanical rough/final, plumbing rough/underground/final) — budget scheduling time accordingly, since each must be requested by 4 p.m. the prior business day.
  • Both Addition and Basement Finish permits carry the same published 14-business-day turnaround — plan submittal timing around this figure.
  • Plan review fees differ by exact scope: $50 for new stock home/basement/alteration vs. $100 for additions/detached garages/sheds vs. $20 for decks/arbors — confirm which line item applies to your specific project before budgeting.

Frequently asked questions

Yes. 'Converting or finishing a basement or garage-type space' is explicitly listed as requiring a permit on the Town's Building Permits requirements page.

In Johnstown, the published IBC/IRC Building Permit Fee (same valuation-based table as new construction) is: $23.50 minimum, scaling per the valuation tiers. Additional published fees: Building Plan Submittal/Review Fee — Residential, new stock home/basement/alteration — $50.00; Building Plan Submittal/Review Fee — Residential addition, detached garage, shed, etc. — $100.00; Building Plan Submittal/Review Fee — Residential miscellaneous, deck, arbor — $20.00; Plan resubmittal fee — $20.00; Building Re-inspection, After Hours, Plan Resubmittal — $47.00 per hour. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

The Town's own Basement Finish page states applications receive a decision within up to 14 business days.

You'll need: Building Permit Application (eTRAKiT); Drawing of Proposed Work. See the required-documents checklist on this page for details on each.

Johnstown requires 5 inspection(s) for a residential addition / remodel permit (including basement finish), in order: Structural Rough, Drywall / Insulation, Electrical Rough / Mechanical Rough (incl. Gas Test) / Plumbing Rough / Underground, Electrical Final / Mechanical Final / Plumbing Final, Final Building. Schedule each through Town of Johnstown Building Division (contracted operations administered by ProCode Inc., a SAFEbuilt company) (970-305-3161 (Building Official / ProCode); 970-578-9608 (Permit Processing); 970-587-4664 (Town Hall main line)).

Apply through Town of Johnstown Building Division (contracted operations administered by ProCode Inc., a SAFEbuilt company) at 201 Centennial Drive, Johnstown, CO 80534 (Building Division); Town Hall at 450 S. Parish Avenue, Johnstown, CO 80534; ProCode/SAFEbuilt satellite office at 39 S. Parish Avenue, Suite 220, Johnstown, CO 80534. Phone: 970-305-3161 (Building Official / ProCode); 970-578-9608 (Permit Processing); 970-587-4664 (Town Hall main line), email: BuildingPermits@JohnstownCO.gov (permit processing); info@procodeinc.net (ProCode/Chief Building Official). Office hours: Monday-Friday, 8 a.m. to 4 p.m. (Building Division, per Staff Directory) / 8 a.m. to 5 p.m. (Town Hall main office); inspection requests must be submitted by 4 p.m. the business day before the requested date, via phone (970-305-3161, option 1) or the Safebuilt/ProCode website; inspections conducted Monday-Friday only, excluding holidays. Official information: https://www.johnstownco.gov/211/Building-Codes.

Johnstown, Colorado has adopted: 2024 International Building Code (IBC) — Town of Johnstown Building Codes page, https://www.johnstownco.gov/211/Building-Codes, adopted per Ordinance No. 2025-274 (enacted September 15, 2025); 2024 International Residential Code (IRC), per the same ordinance and Building Codes page; 2024 International Fire Code (IFC); 2024 International Fuel Gas Code (IFGC); 2024 International Energy Conservation Code (IECC); 2024 International Mechanical Code (IMC); 2024 International Plumbing Code (IPC); 2023 National Electrical Code (NEC); Colorado Wildfire Resiliency Code, as adopted/referenced on the Town's Building Codes page; Colorado Model Electric and Solar Ready Code, as adopted/referenced on the Town's Building Codes page; Johnstown Municipal Code, Chapter 18 (Building Regulations); NOTE (data-integrity flag): Several individual project-specific pages on johnstownco.gov (Addition, Electrical, Roofing, Siding, Water Heater, Furnace, Air Conditioning, Basement Finish, Residential Solar) still display a stale 'applicable codes' footer citing the superseded 2018 I-Code suite (with only the NEC correctly updated to 2023) — this appears to be unupdated boilerplate predating Ordinance No. 2025-274's September 2025 adoption of the 2024 I-Codes. The Building Codes landing page (2024 codes) is treated as the current governing citation in this corpus; the discrepancy itself is disclosed rather than silently resolved, since the individual permit pages have not been corrected as of this review.. Local amendments apply — see the Johnstown overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-06.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Johnstown building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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