Building permits in Weld County — a large Northern Colorado county encompassing Greeley and one of the state's fastest-growing regions — are issued by Planning & Development Services, Building Division. Weld County enforces the 2018 IBC/IRC with Weld County amendments.
This guide covers what requires a permit, the Weld County Online Portal, fees, trade permits, and inspections — so your Weld County project stays on track.
Northern Colorado energy and agriculture hub with explosive residential growth. Weld County handles permitting for unincorporated areas only. Greeley, Windsor, and other cities manage their own permits. Weld County currently enforces the 2018 IBC/IRC. Rapid residential development in the I-25 corridor makes timely permitting essential.
Jurisdiction note. Weld County permits cover unincorporated areas only. If your project is within an incorporated city or town, contact that municipality's building department.
What requires a building permit in Weld County?
Under the 2018 IBC/IRC with Weld County amendments, a permit is required for most construction activities:
Permit required
- New residential and commercial construction, additions
- Structural and load-bearing alterations
- Reroofing, windows, siding, and exterior changes
- Electrical service changes and most wiring work
- HVAC installations and changeouts
- Plumbing alterations, repipes, and water heaters
- Decks, pools, fences, patio covers, carports
- Change of occupancy or use
Typically exempt
- Painting, wallpapering, tiling, carpeting, cabinet installation
- Countertop replacement and similar finish work
- Retaining walls ≤ 4 ft (not supporting surcharge)
- One-story detached sheds ≤ 200 sq ft (on grade, no utilities)
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without one exposes the owner to penalties, fines, and stop-work orders. In Denver, fines range from $150–$999 per violation. Unpermitted work can also create issues when selling the property.
Who handles permitting in Weld County?
The Building Division within Planning & Development Services handles plan review, permit issuance, and construction inspections. All permits are managed through the Weld County Online Portal.
| Detail | Information |
|---|---|
| Office | Planning & Development Services — 1150 O St, Greeley, CO 80631 |
| Phone | (970) 400-6100 |
| Online portal | Weld County Online Portal |
| Code cycle | 2018 IBC/IRC with Weld County amendments |
| Review timeline | 10–20 business days depending on project scope |
| Contractor license | Local licensing + state trade licenses |
Apply at the Weld County Portal. Register an account on the Weld County Online Portal. Start a new application, upload required documents (site plan, construction drawings, energy code compliance), and pay the plan review fee at submittal. Print and post the permit card on-site before work begins.
Weld County building permit cost
Weld County permit fees are valuation-based per county fee schedule.
| Fee component | How it works |
|---|---|
| Residential building permit | Valuation-based formula |
| Commercial building permit | Valuation-based formula |
| Plan review fee | 65% of building permit fee |
| Trade permits (E / P / M) | Separate fees per trade |
| Technology / admin fee | Added to permit total |
| Work-without-permit | Double fees + stop-work orders + fines |
Want a precise number for a specific Weld County project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Weld County trade permits
Electrical, plumbing, and mechanical work each needs its own permit and appropriately licensed tradespeople.
Electrical permits
Required for service installations, panel upgrades, solar PV, EV chargers, and most wiring alterations — performed by a contractor licensed through the Colorado State Electrical Board.
Plumbing permits
Required for new plumbing, repipes, water heater changeouts, fixtures, backflow, and sewer connections — performed by a contractor licensed through the Colorado Examining Board of Plumbers.
Mechanical (HVAC) permits
Required for HVAC installations, changeouts, ductwork changes, and venting modifications — performed by a qualified mechanical contractor per local requirements.
Miscellaneous & specialty
Fencing, pools, decks, sheds, and patio covers may require special permits depending on size and utility hookups. Demolition, sign, and right-of-way permits follow separate tracks.
Verify contractor licensing. Colorado does not issue a statewide general contractor license — general contractor licensing is handled at the local city or county level. However, trade licenses are state-regulated: electricians are licensed by the Colorado State Electrical Board and plumbers by the Colorado Examining Board of Plumbers. Always verify your contractor meets both state trade requirements and local licensing. The Colorado Wildfire Resiliency Code (2025) sets fire-resistant construction standards in wildland-urban interface zones. Verify licensing at dpo.colorado.gov/EandP.
How to get a building permit in Weld County
Confirm permit requirement & zoning
Contact Planning & Development Services at (970) 400-6100. Confirm zoning compliance and whether your project requires a permit.
Register on Weld County Portal & apply
Create an account on the Weld County Online Portal. Start a new application and select the correct permit type.
Upload documents & pay plan review fee
Upload site plan, construction drawings, energy compliance forms, contractor license, and proof of insurance. Pay plan review fee at submittal.
Plan review & corrections
Staff reviews against 2018 IBC/IRC with Weld County amendments. 10–20 business days depending on project scope. Resubmit revised plans if needed.
Pay remaining fees & receive permit
Pay the remaining permit fee upon approval. Print permit and post on-site before construction begins.
Schedule inspections through CO
Schedule inspections via the Weld County Online Portal. Typical checkpoints: foundation, framing, rough-in MEP, insulation, final. Certificate of Occupancy required before occupancy.
Inspections in Weld County
Schedule inspections through the Weld County Online Portal. Standard checkpoints include foundation, framing, rough-in MEP, insulation, and final. Post the permit card on-site and maintain approved plans. A final inspection and Certificate of Occupancy are required before legal occupancy.
Address correction notices before requesting a re-inspection; a final inspection and Certificate of Occupancy are required before legal occupancy or use.
Official Weld County permitting resources
- 🏛️ Weld County — Building
- 💻 Weld County Permits & Records
- 📋 Weld County Building Permits & Inspections
- 🪪 CO State Electrical Board
Simplify Weld County permitting with Alliance Permitting
Weld County's Weld County Online Portal, valuation-based fees, and Colorado's local licensing requirements reward applicants who prepare complete packages from the start. Alliance Permitting is a permit expediter for Weld County — our permit expediting services pair AI-driven document review with experts who know the Planning & Development Services process, so your Weld County submissions move faster.
Trusted by leading builders and brands — including Dream Finders Homes, Tesla, Verizon, Hyatt, and Sunnova.
Contractors and builders choose Alliance for Weld County because we deliver:
- Local expertise — we know Planning & Development Services, the Weld County Online Portal, and the 2018 IBC/IRC with Weld County amendments.
- Complete oversight — track every permit and inspection across all your jobs in one place.
- Error-free submissions — AI pre-checks plus expert review catch issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
Need a Weld County building permit?
Get your Weld County project permitted right. Alliance Permitting handles your applications through the Weld County Online Portal — so you build, not wait.
More Colorado permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with the Planning & Development Services before filing. This is not legal advice.