Williams building inspections

Verified

Inspection sequence, scheduling, and re-inspection fees for building permits in Williams, Arizona.

Verified 2026-07-07 · Source

How to schedule

Inspections are requested through the building department below.

Address: 113 South 1st Street, Williams, AZ 86046-2549
Phone: 928-635-4451 ext. 205
Email: tmartinez@williamsaz.gov
Office hours: Phone 928-635-4451, fax 928-635-4495. Chief Building Inspector / Building Official: Tim Martinez (928-295-5478, tmartinez@williamsaz.gov) handles building permit review and issuance; Building Official Raul Hatch (928-635-4451 / 928-295-5478, rhatch@williamsaz.gov) is listed as the signing official on the Fence and Demolition permit application forms — the department appears to operate with more than one Building Official-titled staff member across different permit forms as of 2025. Applications are submitted in person or by mail using the City's paper Building Permit Application (no online portal was found); permits are picked up and fees paid at the City Hall front desk. Two sets of construction documents/plans required for submittal.
Website: Official site

Published scheduling rules

Final inspection must be requested from the City of Williams Building Department upon job completion (Fence Permit)

Inspection sequence

Applies to: Commercial Building Permit (New Construction & Tenant Improvement)

1
Footing/Foundation
Before concrete pour; commercial soil pressure design per engineered design, no building on untested fill; verify footing depth/width and reinforcement per City of Williams amendments
2
Framing / Rough Trades
Structural framing and rough electrical/plumbing/mechanical before cover; new-construction permits require an inspection no less than every 180 days to remain valid
3
Special Inspections
As listed on the approved plan cover sheet (a required cover-sheet line item for commercial submittals), performed per the approved plans
4
Final / Certificate of Occupancy
All work complete per approved plans before occupancy; work not completed under a Temporary Certificate of Occupancy by its expiration may result in the Building Official requesting utility de-energization (Ordinance No. 956)

Applies to: Residential Building Permit (New Construction)

1
Footing/Foundation
Before concrete pour; verify footing depth (min. 18 in. below undisturbed grade, or 3,500 psi concrete pinned to rock if under 30 in.), width, and reinforcement per City of Williams amendments
2
Framing
Structural framing, connections, egress, garage-dwelling fire separation (5/8" Type X gypsum board) per City of Williams amendments
3
Energy Efficiency Inspection
Verifies compliance with City of Williams Energy Efficiency Standards (insulation R-values, HVAC AFUE/SEER/HSPF, window/skylight U-factors) per Ordinance No. 956 amendment to IBC § 110.3.7
4
Final / Certificate of Occupancy
All work complete per approved plans before occupancy; Temporary Certificate of Occupancy work not completed by its expiration may result in the Building Official requesting utility de-energization

Applies to: Plumbing Permit

1
Underground/Slab
Before concrete pour — verify pipe slope, materials, cleanouts, tracer wire on non-metallic sewer piping
2
Rough-In
After pipes installed, before walls closed
3
Final
Fixtures connected, water heater and gas connections verified, no leaks

Applies to: Residential Remodel / Addition Permit

1
Footing/Foundation
Required before concrete pour for additions
2
Framing
Structural connections to existing structure, garage-dwelling fire separation if applicable
3
Final
Completed work verified against approved plans

Applies to: Change of Use / Certificate of Occupancy Permit

1
Alteration Inspections (if construction is performed)
Rough-in and progress inspections on building, plumbing, mechanical and electrical work performed to serve the new occupancy; the number of inspections varies with the complexity of the job (Building Department FAQ)
2
Final / Certificate of Occupancy
Completed work verified against the approved plans, closing with the building official's certificate of occupancy; a Temporary Certificate of Occupancy carries an expiration date after which, under § 150.20's added Section 111.3.1, the Building Official may request that utilities de-energize the building and the building may not be occupied

Applies to: Electrical Permit

1
Rough-In
Wiring, box placement, and panel connections before walls are closed
2
Final
Devices installed, panel labeled, protections verified per adopted NEC

Applies to: EV Charger Installation Permit

1
Rough-In
Charger circuit wiring, box placement, and panel connections before walls are closed, where applicable
2
Final
Charger installed, panel labeled, protections verified per adopted NEC

Applies to: Fire Sprinkler / Fire Alarm Permit

1
Rough-In / Overhead
Sprinkler piping, hangers and heads, standpipe risers, and alarm rough wiring verified before ceilings and walls are closed
2
Final / Acceptance
Completed fire protection system verified against the approved plans and deferred submittals; the Williams Fire Department maintains its own fire inspector and inspection program

Applies to: Mechanical / HVAC Permit

1
Rough-In
Ductwork and equipment placement before walls closed
2
Final
Equipment operational, clearances and combustion air verified, energy-efficiency standards (AFUE/SEER/HSPF) confirmed

Applies to: Residential Solar Photovoltaic (PV) Permit

1
Rough Electrical
Conduit runs, wire sizing, disconnect placement before energizing
2
Final
Panel mounting, racking attachment, roof penetration sealing, electrical connections, and interconnection point verified; specific inspection schedule noted on the issued permit

Final inspection only: Demolition Permit, Excavation / Grading / Public Works Permit, Fence Permit, Re-Roofing Permit, Sign Permit

Sources & verification

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

City of Williams Building Department — official building department

Applications & forms

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 Williams building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Williams building permits

Williams building permits Commercial Building Permit (New Construction & Tenant Improvement)Residential Building Permit (New Construction)Plumbing Permit Residential Remodel / Addition Permit Change of Use / Certificate of Occupancy Permit Electrical Permit EV Charger Installation Permit Fire Sprinkler / Fire Alarm Permit Mechanical / HVAC Permit Residential Solar Photovoltaic (PV) Permit Demolition Permit Excavation / Grading / Public Works Permit Fence Permit Re-Roofing Permit Sign Permit

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