Johnstown building permits
VerifiedDepartment contacts, adopted codes, permit types, fees, and gotchas for Johnstown, Colorado.
Last verified 2026-07-06 · Source · Embed this page’s badge · Version history
Building department
- Address
- 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)
- 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
- Website
- Official site
- Permit portal
- Apply online at Johnstown's portal
Inspection guide
See how inspections work in Johnstown — sequence, scheduling & re-inspection fees.
Codes adopted
Colorado has no statewide-mandated building code edition. Under the Colorado Constitution's home-rule provisions (art. XX, home rule for municipalities since 1902; home rule for counties since 1970), building codes and zoning are an enumerated home-rule charter power, so cities and counties adopt and amend their own construction codes independently — predominantly the I-Codes, with editions and local amendments varying by jurisdiction. The one statewide floor is for energy: HB22-1362 (2022) created the Energy Code Board (jointly appointed by the Colorado Energy Office and the Department of Local Affairs) and requires that, on or after July 1, 2023 and before July 1, 2026, any municipality or county that adopts or updates a building code must adopt and enforce an energy code achieving performance equivalent to or better than the 2021 IECC together with the board's Model Electric Ready and Solar Ready Code (which includes electric-ready, EV-ready, and solar-ready provisions); from July 1, 2026 onward the floor shifts to the board's Model Low Energy and Carbon Code or an equivalent. Electrical and plumbing permitting defaults to the Colorado State Electrical Board and State Plumbing Board (within DORA's Division of Professions and Occupations) — the state issues permits and inspects statewide except in counties/jurisdictions that operate their own certified Electrical or Plumbing Inspection Program, in which case the local program has authority instead. Always confirm the currently adopted code edition, local amendments, and inspection authority (state board vs. local program) with the specific jurisdiction before submitting plans.
- 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.
Permit types & fees
Residential Building Permit (New Construction / Any New Structure)
Required for any new residential structure or addition in Johnstown. Categorized as 'Residential New' under the Town's 'Review Required' permit category, reviewed under the 2024 IBC/IRC as locally amended (per the Town's own Building Codes page) by the Building Division, operated under contract by ProCode Inc./SAFEbuilt.
Residential Addition / Remodel Permit (including Basement Finish)
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.
Electrical Permit
Required for repairing/replacing an existing electrical service or panel (General Permit) or installing a new electrical service or panel (New Service Permit) in Johnstown. Governed by the 2023 NEC as adopted by the Town.
Electric Vehicle (EV) Charger / EVSE Permit
Johnstown has no dedicated EV charger/EVSE fee line or standalone permit category on either its Electrical permit page or the 2026 Fee Schedule. EV charger (Level 2 or DC fast charging equipment) circuit installation is electrical work governed by the 2023 NEC as adopted by the Town and billed under the same area-based (residential) or valuation-based (commercial) Electrical Permit fee tables used for any other electrical service work. Johnstown's population (approximately 22,300 as of 2025, one of Colorado's fastest-growing towns) is well above the 10,000-resident municipal threshold that triggers Colorado HB24-1173's requirement to adopt a standardized/expedited EV charging system permitting program (adoption deadline December 31, 2025). Neither the Town's Electrical permit page nor its Building Codes page mentions HB24-1173, EV chargers, or a distinct EV permitting standard — consistent with the Town having elected HB24-1173's third compliance option (continuing its existing general permitting process) rather than adopting the Colorado Energy Office's model code or publishing new EV-specific standards, though this has not been explicitly confirmed by the Town.
Plumbing Permit (Water/Sewer Line Upgrade, Water Heater)
Required for water or sewer line upgrades and for water heater/boiler installation or replacement in Johnstown. Governed by the 2024 IPC as adopted by the Town (per the Building Codes landing page); individual plumbing-adjacent project pages still cite the superseded 2018 IPC in their footer.
Mechanical / HVAC Permit (Furnace, Air Conditioning, Fireplace)
Required for furnace, air conditioning, and fireplace installation or replacement in Johnstown. Governed by the 2024 IMC/IFGC as adopted (per the Building Codes landing page).
Roofing Permit (Reroof)
Required for replacing a roof covering over 200 square feet on a residential building in Johnstown. Categorized as 'Review Not Required' on the Building Permit Fees page, but the Town's dedicated Roofing project page separately publishes a specific processing turnaround.
Residential Solar Permit
Required for new solar panel installation in Johnstown. Unlike most standalone electrical/mechanical trade permits, Residential Solar carries the same longer 14-business-day turnaround as additions and basement finishes, plus a distinct three-inspection electrical sequence.
Demolition Permit
Required for demolition of any structure or a portion thereof in Johnstown, per the Town's Building Permits requirements page. No dedicated demolition project page, fee line item, or review timeline is published by the Town beyond the general permit-required listing.
Fence / Retaining Wall Permit
Required for commercial fences and for retaining walls more than 2 feet above ground level in Johnstown. No dedicated project page, fee line item, or review timeline beyond the general permit-required listing was found published.
New residential construction activity
New privately-owned residential construction onlyHousing units authorized by building permits for new privately-owned residential construction — this is not total permit volume (no commercial permits or remodels).
- Latest month (2026-05)
- 38units
38 buildings · $11.2M valuation
- Trailing 12 months
- 498units
12 of 12 months reported · #11 in Colorado coverage by units
- Year to date (2026 YTD through 2026-05)
- 224units
223 buildings · $70.7M valuation
5 month(s) reported to Census
- Full year 2025
- 543units
543 buildings · $182.4M valuation
Source: U.S. Census Bureau, Building Permits Survey (BPS), 2026-05 vintage. Census survey data — separate from the permit-requirements verification above. All Colorado building activity
Tips & gotchas
- Johnstown was incorporated as a Weld County town in 1902 and has since grown to span both Weld and Larimer counties; its Town Hall and Building Division offices remain in Weld County, so this corpus assigns Johnstown to Weld County as its primary/governing county, per the same treatment applied to Northglenn (a Weld/Adams straddle).
- Johnstown's Building Division is operated under contract by ProCode Inc., a SAFEbuilt company — confirmed directly via the Town's own Staff Directory (Chief Building Official Jonathan Gesick, listed as '(SAFEbuilt)') and via SAFEbuilt's own Johnstown company page. ProCode/SAFEbuilt maintains a separate satellite office (39 S. Parish Avenue, Suite 220) from the Town's own Building Division office (201 Centennial Drive).
- A significant, disclosed discrepancy exists in the Town's own published materials: the Building Codes landing page states the Town adopted the 2024 I-Codes via Ordinance No. 2025-274 (September 15, 2025), but numerous individual permit-type project pages (Addition, Electrical, Roofing, Siding, Water Heater, Furnace, Air Conditioning, Basement Finish, Residential Solar) still display a stale footer citing the superseded 2018 I-Codes (with only the NEC correctly shown as the 2023 edition). This corpus treats the 2024 codes (Building Codes landing page) as the current governing citation and flags the stale subpages rather than silently picking one.
- The Town's Building Permit Fees page labels Air Conditioning, Furnace, Roofing, Siding, Water Heater, and Water/Sewer Line Upgrade as 'Review Not Required,' yet each has its own dedicated project page publishing a specific 'up to 7 business days' turnaround figure — both facts are disclosed in this file since the Town does not itself reconcile the two framings.
- Additions, basement finishes, and residential solar all carry a longer published turnaround (14 business days) than most standalone trade permits (7 business days) — factor this into project sequencing.
- Johnstown's residential electrical fee is area-based (tied to living-space square footage: $77-$155+ by tier), while solar and commercial/non-living-residential electrical work is billed on a separate valuation-based schedule — don't apply the wrong table.
- A Colorado state trade license alone does not authorize work in Johnstown — all contractors must additionally hold a Town of Johnstown Contractor License (single AEC category, $100/year), confirmed via the Town's own Contractor Licensing page.
- No dedicated Accessory Dwelling Unit (ADU) permit program, application, or fee schedule is published on johnstownco.gov as of this review, and ADUs are not named on the Town's Building Permits requirements page — omitted from this file rather than assumed or estimated.
- Demolition and Fence/Retaining Wall permits are each named as requiring a permit on the Town's general Building Permits requirements page, but neither has a dedicated project page, specific fee line item, or published review timeline — both are included with honestly-documented null review timelines rather than an invented figure.
- Freestanding sheds of 120 square feet or smaller are exempt from permitting in Johnstown; larger sheds require a permit.
- The Town's 2026 Fee Schedule (adopted 1/5/2026) is a dense two-column PDF where pdftotext's default layout misaligns labels against dollar figures on several pages — this file's fee data was extracted by rendering the Chapter 18 pages to PNG and reading them visually to avoid transcription errors from the scrambled text layer.