This is PermitBase’s published record for Evanston as of 2026-07-20. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Evanston building permits
VerifiedEvanston, Wyoming — as published 2026-07-20.
Verified 2026-07-01 · Source
Codes adopted
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for new single-family, manufactured, or trailer home construction in Evanston. Reviewed for compliance with zoning, Evanston design load values (wind/seismic/snow/frost), and current International Residential Code requirements per Evanston City Code § 7-52.1. The City's Building Department issues the permit and performs inspections locally; qualifying buildings under W.S. § 35-9-108 (see department notes) additionally require Wyoming State Fire Marshal plan review.
Verified 2026-07-01 · Source
Requirements
- Residential home construction is defined as stick-built, manufactured, or trailer home construction; alternative methods (kit/panel, SIP, etc.) may be considered if they meet Evanston City Code § 7-52.1 and applicable IRC/design load requirements
- Detailed, comprehensive plans referencing International Codes, Evanston design load values, and local zoning requirements; engineered plans are strongly encouraged
- Plot plan / site plan showing the proposed building and all existing structures on the property
- Applications submitted online via the City's iworq permit portal (portal.iworq.net/EVANSTON)
- All required Wyoming State applications/fees (where applicable) must be paid and approved permit copies provided to the City before construction begins
- Construction must begin within 180 days of permit issuance and show continuing progress until final inspection approval
- Wyoming 811 must be contacted prior to beginning construction
Required documents
- RequiredBuilding Permit Packet / Building Permit Legal RequirementsCity of Evanston's building permit legal requirements, 'Do I Need a Permit' list, and Evanston design load values (wind, seismic, snow, frost depth), revised 12/17/2025
- RequiredPlot Plan / Site PlanShows the location of the proposed building and every existing building on the property
- RequiredConstruction Drawings and SpecificationsDrawn to scale, sufficient clarity to show the nature and extent of the work, in accordance with the current IRC/IBC and all applicable laws and regulations
- OptionalStructural ComputationsComputations, stress diagrams, and other data sufficient to show correctness of plans, as required by the Building Official
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet; fees updated annually each July |
Residential Addition / Remodel Permit
VerifiedRequired for room additions, structural remodels, garages/accessory buildings 120 sq ft or larger, decks, awnings, fences, and retaining walls in Evanston. Reviewed against Evanston design load values and current IRC requirements; issued and inspected locally by the City Building Department.
Verified 2026-07-01 · Source
Requirements
- Sheds and accessory buildings 12'x10' (120 sq ft) or larger require a building permit
- Retaining walls require a building permit; walls 4 feet tall and over require engineer-stamped plans
- Decks require a building permit
- Awnings or covers require a building permit
- New fences and additions/extensions to existing fences require a building permit (no minimum height threshold in Evanston, unlike some other Wyoming cities)
- Remodels without plumbing, gas, or structural adjustments do NOT require a permit; remodels that touch plumbing/gas/structure DO
- Applications submitted via the City's iworq portal
Required documents
- RequiredGarages and Accessory Buildings guidanceCity of Evanston requirements for garage and accessory building permits
- OptionalDecks guidanceCity of Evanston deck permit requirements
- OptionalAwnings guidanceCity of Evanston awning/cover permit requirements
- OptionalFences guidanceCity of Evanston fence permit requirements
- RequiredPlot Plan / Site PlanShows location of proposed addition/structure and existing buildings
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee | $0.010 × project cost (minimum charge $30.00) | Same valuation-based formula applies to additions, remodels, sheds, decks, awnings, fences, and retaining walls — City of Evanston Engineering & Building Rate Sheet; no separate flat fee line exists per accessory type |
Electrical Permit (State Program)
VerifiedElectrical wiring permits and inspections in Evanston are issued and performed ENTIRELY by the Wyoming State Fire Marshal's Office (Chief Electrical Inspector) under the state's default statewide electrical program (W.S. § 35-9-119) — the City of Evanston does NOT issue electrical permits or perform electrical inspections. This matches the WSFM 'LOCAL AND STATE JURISDICTIONS' chart classification of Evanston as ELEC INSP/PR: S/S, and is directly confirmed by the City's own Building Inspection Information sheet, which instructs permit holders to 'Contact State of Wyoming Electrical Inspector' for electrical inspections.
Verified 2026-07-01 · Source
Requirements
- Apply directly to the Wyoming State Fire Marshal's Office electrical program — NOT the City of Evanston — for all electrical wiring permits
- New construction, service changes, panel upgrades, rewiring, and solar PV interconnection wiring all require a State electrical permit
- Solar PV systems additionally require a Wyoming State Plan Review (see solar-pv-permit type) in addition to the State electrical permit
- Online portal: wyelectrician.imagetrendlicense.com
Required documents
- RequiredWyoming State Fire/Electrical Requirements documentLinked from the City of Evanston's own Commercial Construction page, confirming State review/fee responsibility for fire and electrical
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standard Wiring Permit (State) | $50.00 | Wyoming State Fire Marshal's Office — Electrical Safety program; temporary/90-day permit is $40.00; permit fee is waived if an inspection is also requested and paid for |
| Residential Inspection Fee — 100A service (State, includes $50 permit) | $70.00 | — |
| Residential Inspection Fee — 125A service (State, includes $50 permit) | $82.50 | — |
| Residential Inspection Fee — 150A service (State, includes $50 permit) | $95.00 | — |
| Residential Inspection Fee — 200A service (State, includes $50 permit) | $120.00 | — |
| Residential Inspection Fee — 300A service (State, includes $50 permit) | $170.00 | — |
| Residential Inspection Fee — 400A service (State, includes $50 permit) | $220.00 | — |
Plumbing Permit
VerifiedRequired for new plumbing installations, alterations, and irrigation system backflow prevention in Evanston. Issued and inspected locally by the City Building Department; charged under the City's general valuation-based building-permit fee schedule (no separate flat plumbing fee line).
Verified 2026-07-01 · Source
Requirements
- New fixture installations, re-piping, and water/sewer line work require a building permit
- Irrigation systems require backflow prevention per the 2021 Plumbing Code § 608.17.5 and Wyoming DEQ requirements (High Hazard Back Pressure classification) — a reduced-pressure-principle backflow prevention assembly is required where chemicals are introduced into the system
- Building permits and inspections are required for installation of irrigation systems
- Water tap and sewer/wastewater tap connections require City coordination — 48 hours' notice required prior to tap; all parts must be on-site and inspected before excavation
Required documents
- OptionalAirgap backflow preventer guidanceCity of Evanston guidance on airgap-type backflow prevention for irrigation
- OptionalReduced Pressure Backflow Preventer guidanceCity of Evanston guidance on reduced-pressure backflow prevention for irrigation
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (covers plumbing work; no separate plumbing fee line) | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet — plumbing work is charged under the general valuation-based building permit fee, not a separate trade-specific fee |
| Water Connect & Tap — 3/4" service (FY25-26) | $1,250.00 | City of Evanston Water Department Rate Sheet; scales up to $32,000 for 12-inch service |
| Wastewater/Sewer Connection & Tap — 3/4" service (FY25-26) | $1,500.00 | City of Evanston Water Department Rate Sheet; scales up to $38,250 for 12-inch service |
| Construction Water (per 1,000 gallons, up to 9,999 gal, FY25-26) | $10.00 | Tiers up to $16.00 per 1,000 gallons at 30,000+ gal; plus $20.00/month admin fee |
Mechanical / HVAC Permit
VerifiedRequired for furnace, ductwork, and mechanical equipment installation in Evanston. Issued and inspected locally by the City Building Department; charged under the City's general valuation-based building-permit fee schedule (no separate flat mechanical fee line). Gas piping inspections are performed by the local gas provider, not the City.
Verified 2026-07-01 · Source
Requirements
- New or replacement furnace, ductwork, and mechanical equipment installation requires a building permit
- Gas piping: contact the local gas provider (Enbridge Gas) — not the City — for gas line inspection
- Reviewed for compliance with the current IRC/IBC mechanical provisions and Evanston design load values
Required documents
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (covers mechanical work; no separate mechanical fee line) | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet — mechanical work is charged under the general valuation-based building permit fee, not a separate trade-specific fee |
Roofing Permit (Reroof)
VerifiedSame-type-for-same-type roof replacement does NOT require a permit in Evanston. A building permit IS required when changing roofing materials or structural elements.
Verified 2026-07-01 · Source
Requirements
- Replacing roofing with the SAME type of material does not require a permit
- Changing roofing materials or altering structural roof elements DOES require a building permit
- New construction roofing is covered under the residential-building-permit or commercial-tenant-improvement-permit type
Required documents
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee (when a permit is required — material/structural change) | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet; no separate flat reroof fee line |
Solar PV Permit
VerifiedSolar systems in Evanston require BOTH a City of Evanston building permit AND a Wyoming State Plan Review and Electrical Permit — a dual local/state review confirmed directly in the City's own Building Permit Legal Requirements ('Solar Systems require a building permit and a Wyoming State Plan Review and Electrical Permit'). This matches W.S. § 35-9-108's state plan-review trigger for 'alternate energy generation installation feeding to the utility' and the WSFM chart's state electrical classification for Evanston.
Verified 2026-07-01 · Source
Requirements
- City of Evanston building permit required for the physical installation (racking, roof penetration, structural)
- Wyoming State Fire Marshal Plan Review required for the alternate energy generation installation feeding to the utility (per W.S. § 35-9-108)
- Wyoming State electrical permit required for the PV electrical interconnection (State electrical program — see electrical-permit type)
- Review the 'Electrical PV Plan Review Checklist' referenced by the City before applying
- Structural plans should account for Evanston's design load values (wind, seismic Zone D1, snow, frost depth)
Required documents
- RequiredElectrical PV Plan Review ChecklistReferenced in the City's Building Permit Legal Requirements as the guide for the required Wyoming State Plan Review of solar PV systems
- RequiredSolar Systems guidanceCity of Evanston 'Other Construction' page solar systems document
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| City Building Permit Fee | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet; no separate flat solar fee line locally |
| Wyoming State Electrical Permit (PV interconnection) | $50.00 standard wiring permit (see electrical-permit type for full State fee schedule) | Wyoming State Fire Marshal's Office Electrical Safety program — paid to and processed by the State, not the City |
EV Charger / Electric Vehicle Charging Station Permit
VerifiedEvanston has no separate EV charger permit or fee line — installation of an electric vehicle charging station (Level 1/2 EVSE) is wiring work and is billed and processed exactly like any other electrical installation under the Wyoming State Fire Marshal's Office statewide electrical program (W.S. § 35-9-119), the same State-administered mechanism documented in the electrical-permit entry. The City of Evanston does not permit or inspect electrical work of any kind, including EV chargers.
Verified 2026-07-20 · Source
Requirements
- Apply directly to the Wyoming State Fire Marshal's Office electrical program — NOT the City of Evanston — for the EV charger circuit/EVSE installation, exactly as for any other wiring permit
- New dedicated circuits, panel upgrades, and EVSE hardwiring or receptacle installation are all covered under the State's standard wiring permit
- If installing solar and EV charging together, both fall under the same State electrical permit/plan-review process — see solar-pv-permit type
- Online portal: wyelectrician.imagetrendlicense.com
Required documents
- RequiredWyoming State Fire/Electrical Requirements documentSame State Fire Marshal wiring-permit process that governs all electrical work in Evanston, including EV charger circuits
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standard Wiring Permit (State) — applies to EV charger circuit installation | $50.00 | Wyoming State Fire Marshal's Office Electrical Safety program; no distinct EV-charger fee line exists — EV charger wiring is billed under the same standard wiring permit fee as any other electrical work; fee is waived if an inspection is also requested and paid for |
| Residential Inspection Fee — 100A service (State, includes $50 permit) | $70.00 | Applies if the EV charger installation includes a service-related inspection scoped to this amperage tier — see electrical-permit entry for the full amperage-tiered schedule |
Accessory Dwelling Unit (ADU) Permit
VerifiedEvanston formally adopted an ADU ordinance (Ordinance No. 26-01, adopted March 3, 2026), amending Chapter 24 (Zoning) of the Evanston City Code to permit Accessory Dwelling Units, with detailed standards codified at Evanston City Code § 24-26.1. ADUs are a permitted or conditional use (by zoning district) only on lots with a detached single-family dwelling.
Verified 2026-07-01 · Source
Requirements
- ADUs are permitted (P8) or conditional-review (C8) uses only in specific residential districts per the Evanston City Code § 24-15 Schedule of Permitted Land Uses — confirm your lot's zoning district with the Engineering & Planning Department before applying
- Only ONE accessory dwelling unit is permitted on a lot with a detached single-family dwelling; ADUs are prohibited on lots with attached single-family or multi-family dwellings
- Lot must comply with the minimum lot area requirement for its zoning district, or the minimum usable open space per dwelling unit must be maintained with the ADU added
- ADU cannot be subdivided or segregated in ownership from the principal dwelling, nor reclassified from accessory to principal use
- Size limit: detached ADU may not exceed 50% of the principal dwelling's footprint or 1,200 sq ft, whichever is less (garage/porch/deck excluded from the calculation); minimum size 190 sq ft; a detached ADU of 400 sq ft or less (and at least 190 sq ft) must comply with IRC Appendix BB Tiny Houses; all accessory buildings combined (including a detached ADU) may not exceed 75% of the principal building's footprint; the size limitation does not apply to an ADU located entirely within a basement
- Maximum 2 bedrooms/sleeping areas in the ADU
- Building appearance must match or complement the principal dwelling's architectural style (siding, roofing, window materials)
- Detached ADUs comply with accessory-use setbacks/height limits; attached ADUs comply with principal-use setbacks for the district
- One additional off-street parking space required for the ADU (paved, dust-free surface), beyond the district's normal minimum
- ADU may not be a manufactured home, mobile home, travel unit, or temporary/seasonal structure (yurts, tents, units on skids) EXCEPT a manufactured home may serve as the ADU only in the LR-M or RR zoning districts and only if the principal building is also a manufactured home (must additionally meet Evanston City Code § 7-52.1)
- ADU may share water/sewer service with the principal unit if separate shutoff valves exist; no more than one bill per meter
- ADU must have a separate house number from the principal dwelling
- ADU must be on a permanent foundation (manufactured ADUs must meet § 7-52.1 foundation/skirt-wall requirements)
- Occupancy limited to no more than one family (persons related by blood, marriage, or adoption), with an exception allowing a non-family caretaker on a temporary/intermittent basis
- One-year residency: the property owner must have physically lived in the principal dwelling as their primary residence for one year before applying for the ADU permit, EXCEPT an ADU may be built simultaneously with a new single-family home on a vacant/undeveloped lot without the waiting period
- Owner-occupancy: the property owner must physically live in either the principal dwelling or the ADU as their primary residence for more than 50% of the calendar year for the ADU to be occupied
- After City approval, the owner must record a 'Notice of Accessory Dwelling Unit Regulations' with the Uinta County Clerk (in a form approved by the Engineering and Planning Department)
- IRC Appendix BC (Accessory Dwelling Units) applies unless this Section specifies otherwise
Required documents
- RequiredOrdinance No. 26-01 (ADU zoning amendment, adopted March 3, 2026)Full ordinance text amending Evanston City Code § 24-15 (schedule of permitted land uses) and enacting § 24-26.1 (ADU standards, 17 sub-sections) and § 24-105 (definitions)
- RequiredZoning RequirementsCity of Evanston zoning district map and requirements, to confirm ADU eligibility by district
- RequiredNotice of Accessory Dwelling Unit Regulations (recorded with Uinta County Clerk)Required recording after City approval, per § 24-26.1(16)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| City Building Permit Fee | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet; ADU construction is charged under the general valuation-based building permit fee — no separate flat ADU fee was found in the adopted fee schedule |
Demolition Permit
VerifiedRequired for demolition of structures in Evanston. Residential demolition is a flat fee; commercial demolition is valuation-based, per the City's Engineering & Building Rate Sheet.
Verified 2026-07-01 · Source
Requirements
- Building permit required for demolition of structures
- Apply via the City's iworq permit portal
- Utility disconnects should be coordinated prior to demolition
Required documents
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Demolition Permit | $30.00 flat fee | City of Evanston Engineering & Building Rate Sheet |
| Commercial Demolition Permit | $0.010 × project cost | City of Evanston Engineering & Building Rate Sheet |
Commercial Construction / Tenant Improvement Permit
VerifiedRequired for new commercial construction, tenant improvements, and renovations in Evanston. Engineer-stamped plans required incorporating Evanston design load values, zoning requirements, and current International Code design criteria. Some commercial buildings trigger mandatory Wyoming State Fire Marshal plan review and fire/electrical requirements per W.S. § 35-9-108.
Verified 2026-07-01 · Source
Requirements
- Engineer-stamped plans required, incorporating Evanston design load values, zoning requirements, and current International Code design criteria
- Single-phase construction completed in one build; multi-phase construction requires multiple permit submittals and may extend over months/years
- Buildings meeting state review triggers (general public access >5,000 sq ft, over one story, childcare >10 children, public bars/restaurants/theatres/churches regardless of size, fuel dispensing, alternate energy generation, Type I commercial kitchen hoods, spray finish, occupancy change) require Wyoming State Fire Marshal plan review and approval in addition to City review, per W.S. § 35-9-108
- State reviews are sent directly to, and fees are paid directly to, the State of Wyoming — not the City
- Power (Rocky Mountain Power), gas (Enbridge Gas), and internet/communications permits/fees are direct to the respective utility providers, not the City
- Evanston Fire Department review/approval required separately from any State Fire Marshal review
Required documents
- RequiredZoning Districts and Land Use InformationCity of Evanston zoning district map and land use table
- RequiredZoning RequirementsCity of Evanston zoning requirements document
- RequiredBuilding Permit Legal RequirementsLegal requirements and design load values for commercial construction
- RequiredEvanston Design Load ValuesWind, seismic, snow, and frost depth design criteria
- RequiredPlot Plan / Site PlanRequired site plan for commercial projects
- OptionalSign RequirementsCity of Evanston sign code requirements, if signage is part of the project
- RequiredWyoming State Fire/Electrical RequirementsDocument explaining when State Fire Marshal plan review and State electrical permits are triggered for commercial buildings
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee | $0.010 × project cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet |
| Sign Permit | $0.010 × construction cost (minimum charge $30.00) | City of Evanston Engineering & Building Rate Sheet |
| Grading and Stormwater Permit | $100.00 per acre | City of Evanston Engineering & Building Rate Sheet |
| Stormwater Impact Fee — Onsite Detention | $575.00 per acre | City of Evanston Engineering & Building Rate Sheet |
| Stormwater Impact Fee — Offsite Detention | $2,875.00 per acre | City of Evanston Engineering & Building Rate Sheet |
Sources & verification
Verified against official sources. Last reviewed 2026-07-01.
Fee schedules
Applications & forms
Checklists & handouts
Codes & ordinances
Department & other records
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 Evanston building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.