Gillette building permits

Requirements

• Building permit required for all new one- and two-family residential construction
• Plans required for all dwellings (no plan review fee is charged for one- and two-family dwellings)
• Applications and plan sets submitted digitally via EnerGov Self Service portal
• Foundation plan must be stamped by a Wyoming-licensed engineer, with written verification of footing/foundation type from the soils engineer, submitted before the footing inspection
• A Foundation Location Certificate prepared and signed by a licensed Wyoming surveyor must be submitted before any inspections beyond sill plate are completed
• Wyoming 811 (One Call) must be contacted prior to excavation
• Contractor must hold a current City of Gillette contractor license (Class A/B/R as applicable)

Required documents

• RequiredBuilding Permit Application (via EnerGov Self Service)Online application/plan submittal through the City of Gillette's EnerGov Self Service portal
• RequiredFoundation Plan (stamped)Stamped by a Wyoming-licensed engineer; required file for the Building Inspection Division application per the Residential Building Permit Process flow chart
• RequiredSoils ReportWritten verification from the soils engineer of the required footing/foundation type
• RequiredArchitectural, Structural, Mechanical, Plumbing, and Electrical PlansFull construction drawing set per the Guideline to 2024 IRC Residential Construction booklet
• RequiredPlot PlanProperty lines, easements, setbacks, existing/proposed structures, drainage — required by the Planning Division for zoning review

Fee schedule

Requirements

• Additions are permitted under the same building-square-footage fee table as new construction
• Miscellaneous residential work (remodels, damage repair, residing) is a flat-fee permit
• Structural additions require stamped plans/calculations as applicable
• Applications submitted via EnerGov Self Service portal
• Plot plan required for zoning review of additions that change the building footprint

Required documents

• RequiredBuilding Permit Application (via EnerGov Self Service)Online application for addition/remodel scope
• RequiredPlot PlanRequired for additions that change the building footprint; example provided in the Residential Addition Guide
• RequiredConstruction DrawingsScope, dimensions, structural details, connection to existing structure per the Residential Addition Guide

Fee schedule

Requirements

• Electrical permit required for services, service changes, new circuits, sub-feeders, basement finish wiring, additions, alterations, and repairs
• Minimum electrical permit fee is $10.00, computed by amperage capacity
• Maximum fee for single-family residences (including EMHs, townhouses, patio houses) on a privately-owned lot is capped at $40 (0–100 amp) or $50 (101–200 amp)
• Capital Contribution Fee applies in addition to the permit fee for new or upgraded electrical services
• Contractor must hold a City of Gillette Class D Electrical contractor license (or Master/Journeyman Electrician license) per City Code Chapter 5, Article III

Required documents

• RequiredElectrical Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal

Fee schedule

Requirements

• Minimum plumbing permit fee applies to any plumbing work
• Per-fixture fee for each fixture, trap, or set of fixtures on one trap (including water, drainage piping, and backflow protection)
• New single-family construction interior plumbing is billed at a flat rate
• Contractor must hold a City of Gillette Class D Plumbing contractor license (or Master/Journeyman/Apprentice Plumber license)

Required documents

• RequiredPlumbing Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal

Fee schedule

Requirements

• Residential new HVAC covers up to 2 heating units, A/C unit, vents, ducts, bath fans, dryer vents under one flat fee; additional units are billed per-unit
• Residential replacement HVAC (furnace, woodstove, heating unit, A/C, boiler) is billed per unit
• Commercial new/replacement HVAC has its own per-unit and flat-fee structure
• Gas piping systems are billed by outlet count
• Contractor must hold a City of Gillette Class D HVAC/Mechanical or Gas Pipefitters contractor license

Required documents

• RequiredMechanical Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal

Fee schedule

Requirements

• Reroofing over 100 sq ft requires a permit
• Complies with IRC Chapter 9 reroofing/re-covering requirements (structural loads, roof recover limitations, flashing reconstruction) — live-adopted edition as of 2026-07-16 is 2021 (previously 2024)
• Materials/methods for re-covering or replacing an existing roof covering must comply with Chapter 9 of the adopted residential code

Required documents

• RequiredRoofing Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal

Fee schedule

Requirements

• Rooftop or ground-mounted solar PV installation requires a building permit (structural/racking scope) and an electrical permit (interconnection/wiring scope)
• Structural design must account for Gillette's local design criteria: 30 psf minimum roof live load (≥15 psf snow load table applies to low-slope roofs at 35 psf), 115 mph ultimate design wind speed, Seismic Design Category B minimum
• Electrical permit and inspection is handled by the City of Gillette Building Division (Gillette holds delegated electrical authority — ELEC INSP/PR = L/L per the WSFM jurisdictions chart), not the Wyoming State Fire Marshal's electrical program
• Contractor must hold applicable City of Gillette contractor licenses (Class B/R Building and Class D Electrical)

Required documents

• RequiredBuilding Permit Application (via EnerGov Self Service) — structural/racking scopeSite plan and racking/structural details for the array
• RequiredElectrical Permit Application (via EnerGov Self Service) — interconnection scopeElectrical wiring, disconnect, and interconnection details

Fee schedule

Requirements

• No dedicated ADU zoning category exists in Gillette's Adopted Zoning Ordinance (confirmed via full-text search of the current code, Ord. No. 4056, 12/17/2024)
• A detached or attached secondary structure/living space is evaluated as an 'Accessory Structure' ("a structure located on the same zone lot as the structure containing the primary, permitted use... detached or attached to the primary structure but must be subordinate and customarily incidental to the use of the primary structure") under the applicable residential district's dimensional standards (setbacks, height, lot coverage)
• Construction is permitted under the standard residential building permit process (IRC — live-adopted edition as of 2026-07-16 is 2021, previously 2024) plus separate electrical/plumbing/mechanical permits as applicable
• Contact the City Planning Division ((307) 686-5281 — phone reverified 2026-07-16; the City Planning Division page does not publish a direct department email, only a "Send an E-mail" contact form and the general gillette@gillettewy.gov line, so the previously-cited cityplan@gillettewy.gov is unconfirmed and removed as of this audit) BEFORE applying to confirm which zoning district applies to the property and whether a proposed secondary dwelling/living space is allowed as an accessory use there
• Contact the Building Division ((307) 686-5260) to confirm which building permit types (new construction vs. addition/remodel) apply to the specific project

Required documents

• RequiredBuilding Permit Application (via EnerGov Self Service)Standard residential building permit process applies; no separate ADU-specific application form exists
• RequiredSite PlanProperty lines, existing structures, proposed accessory structure location, setbacks — for Planning Division zoning review

Fee schedule

Requirements

• Building demolition permit required to demolish, move, or substantially alter a structure
• Electrical service line must be disconnected as part of demolition (separate permit/fee)
• Plumbing must be capped off at the street as part of demolition (separate permit/fee)
• Contractor must hold applicable City of Gillette contractor license

Required documents

• RequiredDemolition Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal

Fee schedule

Requirements

• Commercial Site Plan Requirements Checklist must be satisfied through the Planning Division before applying for the building permit
• Plans for buildings with occupant load over 10 must be signed and sealed by a Wyoming-registered professional engineer or architect
• Complete plan set required: general documents, architectural, structural, electrical (incl. low voltage), civil, plumbing, mechanical, gas line, and fire plans (fire plans routed to Campbell County Fire Department)
• Plans must show IBC code data analysis on the title sheet: use group classification, construction type, fire-resistive construction, design approach method, height/area calculations, fire protection systems, interior finish, occupant loads, means of egress, and accessibility features
• Comcheck energy compliance report (2012 IECC or ASHRAE 90.1-2013) required with commercial plans (certain low-hazard occupancy groups exempted)
• Right-of-way (ROW) permit required from Engineering Division if new water/sewer service connections are needed
• Miscellaneous commercial remodels up to 500 sq ft use a flat fee; larger commercial projects use the Building Square Feet table
• Contractor must hold a City of Gillette Class A (General) or Class B (Building) contractor license

Required documents

• RequiredCommercial Site Plan Requirements ChecklistPlanning Division checklist that must be satisfied before/alongside the building permit application
• RequiredCommercial Buildings and Structures — Minimum Plan Submittal RequirementsBuilding Inspection Division's checklist of the complete plan set (architectural, structural, electrical, civil, plumbing, mechanical, gas, fire, general sheets)
• RequiredBuilding Permit Application (via EnerGov Self Service)Digital plan submittal through the City of Gillette EnerGov Self Service portal
• RequiredFire PlansRouted to Campbell County Fire Department for review

Fee schedule

Requirements

• Electrical permit required for the new circuit, sub-panel, or service work needed to install EVSE equipment
• Minimum electrical permit fee is $10.00, computed by amperage capacity, per City Code § 5-IV-2
• Maximum fee for single-family residences (including EMHs, townhouses, patio houses) on a privately-owned lot is capped at $40 (0-100 amp) or $50 (101-200 amp)
• Capital Contribution Fee applies in addition to the permit fee if the EVSE installation requires a new or upgraded electrical service
• Contractor must hold a City of Gillette Class D Electrical contractor license (or Master/Journeyman Electrician license) per City Code Chapter 5, Article III

Required documents

• RequiredElectrical Permit Application (via EnerGov Self Service)Apply online through the City of Gillette EnerGov Self Service portal. No separate EV-specific application form was found published.

Fee schedule

Requirements

• Decks exceeding 200 sq ft, attached to the dwelling, more than 30 inches above grade (within 36 inches of the deck), or serving the main exit door require a building/zoning permit
• Decks NOT exceeding 200 sq ft, NOT attached to the dwelling, NOT more than 30 inches above grade within 36 inches, and NOT serving the main exit door do not need a building permit (a zoning permit is still required in most instances)
• Footings: minimum 42 inches deep from finish grade to bottom of footing, 8 inches thick, extending 2 inches beyond post sides on all sides
• Posts: 4x4 minimum up to 8 ft height; 5x6 required over 8 ft; must rest on footings, secured with a galvanized steel post base or equivalent
• Decks 18 inches or less above finished grade must use pressure-treated or decay-resistant lumber (measured from the bottom of the floor joists)
• Ledger boards require proper flashing (stainless steel, UV-resistant plastic, or G-185 galvanized steel) at the connection to the house

Required documents

• RequiredBuilding/Zoning Permit Application (via EnerGov Self Service)Apply online; plot plan required for zoning review
• RequiredPlot PlanRequired for zoning; examples available from the Building Inspection Division

Fee schedule

Requirements

• A building permit is required to finish a basement, but City Code § 5-IV-1(b) waives the building permit fee itself
• Plumbing and mechanical permits to finish the basement are fee-free UNLESS special circumstances apply (e.g., the basement floor must be opened to install new plumbing drain lines, or a new hot water heater or furnace is installed)
• A standard electrical permit, at the standard amperage-based fee, IS required for the addition of new electrical circuits, wiring, and outlets to finish a basement
• Standard inspections from the Building Division are still conducted and all work must comply with the codes enforced by the City of Gillette

Required documents

• RequiredBuilding Permit Application (via EnerGov Self Service)Standard application; fee waived per City Code § 5-IV-1(b)

Fee schedule

Requirements

• All signs within the corporate limits must be approved by the Zoning Administrator (Section 8.a.2) before erection, alteration, or continued maintenance
• Application must include a scaled drawing showing height, width, total square footage, and location of the sign on the property; sign permits are filed via EnerGov Self Service
• Exempt from a permit (Section 8.a.3): signs required by federal/state/local law; one wall-mounted nameplate sign ≤2 sq ft; cornerstones, driveway crossbars, personalized stone plaques, decorative residential ID signs, or historical markers; window displays of actual merchandise; informational/directional signs; danger/warning signs; traffic signs; business-door lettering; window signs in commercial/industrial districts; and temporary signs meeting the size/duration limits below
• Temporary signs: not allowed in public right-of-way/publicly-owned property/parks/drainageways/utility poles or where they obstruct a sight triangle; must sit on private property; residential-district temporary signs ≤6 sq ft and not illuminated; commercial/industrial-district temporary signs ≤10 ft height and ≤64 sq ft; all temporary signs must be removed within 10 days of the advertised event
• Prohibited: revolving beacon/fountain/flashing signs that could distract motorists (Zoning Administrator's discretion); signs interfering with traffic-control devices; overhanging/free-standing signs extending over public right-of-way (except approved public traffic/directional devices); signs/banners placed in the public right-of-way; signs or advertising devices attached to a vehicle/trailer parked to advertise a product or business
• Permitted sign types (Billboard, Building Sign, Free-Standing, Center Identification, Sandwich Board, Projecting, Residential Development, Bulletin, Off-Premises, Inflatable, Illuminated, Flashing) vary by zoning district per Table a.A of Section 8 — most are prohibited in residential districts
• Billboards have additional standards (Section 8.b): size/height/face/spacing tables by type (static double-face, static V-face, electronic, tri-face), must be designed and certified by a Wyoming-licensed Professional Engineer, require a City Building Division building permit for the billboard structure in addition to the Zoning Administrator's sign approval, and the owner must post a nameplate with a 24-hour emergency contact number
• A lighted/electrified sign that requires new circuits or wiring also needs a standard electrical permit (see electrical-permit entry), which carries its own $10 minimum fee plus a $10 'each lighted sign' special-installation charge under City Code § 5-IV-2(4)(c)

Required documents

• RequiredSign Permit Application (via EnerGov Self Service)Scaled drawing of the proposed sign showing height, width, total square footage, and location on the property, per Zoning Ordinance Section 8.a.2
• OptionalEngineering Specifications / PE-stamped Structural Plans (billboards and free-standing pole signs)Billboard structures must be designed and certified by a Wyoming-licensed Professional Engineer; a City Building Division building permit is required for the billboard structure itself (Section 8.b.1.e)

Fee schedule

Requirements

• City Code § 5-IV-1(b) fee table lists the line item verbatim: "Fire Sprinkler Systems Campbell County Fire Department performs the plan check and inspections. $30" — the City collects the fee, CCFD performs the technical review and inspections
• Plan submittals must follow the Wyoming State Fire Marshal's Office (WSFO) Fire Sprinkler System plan-review checklist; CCFD states that if a submittal is missing required information, the review cannot be completed and a resubmittal is required
• CCFD inspection scheduling requires at least 48 hours advance notice (call (307) 682-5319); published CCFD construction-inspection types for sprinkler work include "sprinkler rough in" and "sprinkler hydro"
• Fire plans for new commercial construction are also routed to CCFD as part of the standard Commercial Tenant Improvement/Commercial Building Permit submittal (see that entry) — a standalone fire-sprinkler-only project follows the same CCFD review path
• A contractor installing a RESIDENTIAL fire suppression/sprinkler system must hold a City of Gillette Residential Fire Suppression System license (City Code § 5-III-24, § 5-III-25) — $50 new, $50 renewal annually, per § 5-III-27's fee schedule
• Commercial/industrial fire sprinkler installers are licensed under the City's Class F Fire Suppression contractor classification (City Code Chapter 5, Article III); the Board of Examiners' reciprocity provisions (§ 5-III-1(d)(2)) accept proof of NICET, American Fire Sprinkler Association, or National Fire Sprinkler Association certification in lieu of City testing for fire-systems work

Required documents

• RequiredFire Sprinkler System Plan Review Submittal (per WSFO checklist, routed to CCFD)Submitted per the Wyoming State Fire Marshal's Office Fire Sprinkler System checklist; reviewed by Campbell County Fire Department, not the City Building Division
• RequiredBuilding Permit / Fire Plans (via EnerGov Self Service)For new construction, fire sprinkler plans are submitted alongside the commercial building permit application and routed to CCFD

Fee schedule

Requirements

• Campbell County Fire Department's published Plan Review list separately names "Fire Alarm System" alongside "Fire Sprinkler System" as its own plan-review category, using Wyoming State Fire Marshal's Office (WSFO) checklist forms for the submittal
• CCFD states that if a submittal is missing required information, the review cannot be completed and a resubmittal is required
• "Fire alarm acceptance" is listed as its own CCFD construction-inspection type, distinct from the sprinkler rough-in/hydro inspections
• CCFD inspection scheduling requires at least 48 hours advance notice (call (307) 682-5319)
• Fire alarm plans for new commercial construction are also routed to CCFD as part of the standard Commercial Tenant Improvement/Commercial Building Permit submittal (see that entry)
• City Code Chapter 5, Article III's contractor-license structure (Article III sections A-H) has no dedicated fire-alarm contractor license category — alarm/low-voltage work is typically performed under state-level licensure rather than a City of Gillette trade license; confirm current requirements with the Building Division at (307) 686-5260

Required documents

• RequiredFire Alarm System Plan Review Submittal (per WSFO checklist, routed to CCFD)Submitted per the Wyoming State Fire Marshal's Office Fire Alarm System checklist; reviewed by Campbell County Fire Department
• RequiredBuilding Permit / Fire Plans (via EnerGov Self Service)For new construction, fire alarm plans are submitted alongside the commercial building permit application and routed to CCFD

Fee schedule

Requirements

• No dedicated 'Change of Use' or 'Certificate of Occupancy' permit type or fee line exists anywhere in City Code Chapter 5, Article IV (confirmed by a full read of the adopted fee schedule, Revised 6-16-2026)
• A proposed change in use/occupancy classification for an existing building is evaluated by the Building Division under the adopted IEBC (2021 Edition, § 5-I-9); whether the change triggers permitted construction work depends on the specific occupancy-classification change and any life-safety/structural upgrades the IEBC requires for it
• If the change involves only minor commercial remodel work (≤500 sq ft, no new floor area), it is typically processed under the flat $30 'Miscellaneous Commercial' fee (City Code § 5-IV-1(b)) rather than a full commercial plan review
• If the change triggers a fuller scope of work, it follows the standard Commercial Tenant Improvement/Commercial Building Permit process (Planning Division site plan review → Building Inspection Division plan review/permit → Engineering Division ROW review if needed) — see the commercial-tenant-improvement-permit entry for that process and fee table in full
• Fire plans for the new occupancy are routed to Campbell County Fire Department as part of the Building Inspection Division submittal, same as any other commercial building permit
• The Commercial Building Permit Process flow chart's terminal step is 'TCO/CO Certificate of Occupancy — Building Inspection', issued after Council acceptance of utilities (if applicable) and Final Location Certificate (FLC) submittal to Planning/GIS — there is no separate CO application box on the flow chart
• Contact the Building Division ((307) 686-5260) before opening a new tenant space or business in an existing building to confirm whether the proposed new use/occupancy classification requires permitted work and, if so, which permit type(s) apply

Required documents

• RequiredWhichever permit application matches the triggered scope of work (via EnerGov Self Service)No separate change-of-use/CO application form was found published; use the Building Permit Application (Miscellaneous Commercial or full commercial submittal, as applicable)

Fee schedule