This is PermitBase’s published record for Post Falls as of 2026-07-03. It has since been superseded — see the current record.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.
Post Falls building permits
VerifiedPost Falls, Idaho — as published 2026-07-03.
Verified 2026-07-03 · Source
Codes adopted
Idaho has a mandatory statewide building code administered by the Idaho Division of Building Safety (DBS, now organizationally under the Division of Occupational and Professional Licenses / DOPL) under the Idaho Building Code Act, Idaho Code Title 39, Chapter 41, negotiated and adopted through the Idaho Building Code Board. Local jurisdictions that adopt and locally administer the code must enforce it at least as strictly as the state minimum; Post Falls administers its own Building Division for building, electrical, plumbing, and mechanical permitting within city limits. Source: City of Post Falls Current Adopted Codes and Design Criteria (Community Development Department, rev 02/16/25), https://www.postfalls.gov/DocumentCenter/View/750/Current-Codes-and-Design-Criteria-PDF2018 IBC (International Building Code), as adopted by the State of Idaho Building Code Board and locally administered by the City of Post Falls. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2018 IRC (International Residential Code), as adopted by the State of Idaho Building Code Board and locally administered by the City of Post Falls. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2018 IEBC (International Existing Building Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2018 IECC with 2012 Amendments for Residential (International Energy Conservation Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2018 IMC (International Mechanical Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2017 ISPC (Idaho State Plumbing Code) — Idaho's own state-amended plumbing code, not the Uniform or International Plumbing Code. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2018 IFGC (International Fuel Gas Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2023 NEC (National Electrical Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)ICC A117.1-2009 (Accessibility). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)2009 IPMC (International Property Maintenance Code), with amendments. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25)The City of Post Falls Building Division directly issues and inspects electrical and plumbing permits within city limits (the Division's own permit-fee schedule lists dedicated Electrical Permits and Plumbing Permits fee tables administered by the City); this reflects local administration rather than direct-state DOPL/Division of Building Safety issuance for in-city work. Source: City of Post Falls Fee Schedule (Community Development Department, rev 10-1-2025), https://www.postfalls.gov/DocumentCenter/View/815/Fee-Schedule-PDF
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for construction of new single-family homes, duplexes, and townhouse units in Post Falls. Reviewed against the 2018 IRC and 2018 IECC (with 2012 Residential Amendments) as adopted by the City of Post Falls, plus the City's Design Criteria. Applications are submitted through the Community Development Portal (OpenGov/ViewPoint Cloud).
Verified 2026-07-03 · Source
Requirements
- Building permit required for new single-family, duplex, and townhouse-unit construction
- Plans must comply with the 2018 IRC and 2018 IECC (2012 Residential Amendments) as adopted by the City of Post Falls, and must note the City's Design Criteria (40 psf roof snow load, 56 psf ground snow load, 115 mph wind speed/Exposure B, 24-inch frost depth, Seismic Design Category C) directly on the plans
- One set of building plans required (hand-drawn plans in black or blue pen only, no pencil; ¼" scale preferred, 1/8" minimum; full house plans on 11x17 minimum, 18x24 recommended)
- One set of site plans showing property lines, lot dimensions, north arrow, lot square footage, building footprint square footage, driveway, percent lot coverage, setbacks, and utility easements
- Energy calculations required: either the City's Prescriptive Package Form or a REScheck report (2018 IECC or 2018 IRC energy path)
- Completed Mechanical, Electrical, and Plumbing Permit Applications (may be submitted after the initial Building Permit application)
- Apply online at the Community Development Portal: https://postfallsid.portal.opengov.com/
- Utility Registration Form required when submitting for a new single-family residence
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Community Development Portal (postfallsid.portal.opengov.com)
- RequiredResidential Building Plan Submittal RequirementsCity of Post Falls checklist covering building plans, site plans, energy calculations, foundation/floor/roof framing details, braced wall panels, egress, smoke/CO detectors, and mechanical/electrical/plumbing sub-applications
- RequiredConstruction DrawingsFoundation plan, floor plans, floor framing details, roof framing plan/truss sheets, exterior elevations, and dimensioned section drawings consistent with the 2018 IRC and City Design Criteria
- RequiredEnergy Compliance DocumentationResidential Prescriptive Energy Form or REScheck printout
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Living Space valuation rate | $96.83 per sq ft (used with the Valuation Chart to calculate the permit and plan-review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $1 to $500 | $23.50 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $501 to $2,000 | $23.50 for the first $500 plus $3.05 for each additional $100, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $2,001 to $25,000 | $69.25 for the first $2,000 plus $14.00 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $25,001 to $50,000 | $391.25 for the first $25,000 plus $10.10 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $50,001 to $100,000 | $643.75 for the first $50,000 plus $7.00 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $100,001 to $500,000 | $993.75 for the first $100,000 plus $5.60 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation $500,001 to $1,000,000 | $3,233.75 for the first $500,000 plus $4.75 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Building Permit Fee — valuation over $1,000,000 | $5,608.75 for the first $1,000,000 plus $3.15 for each additional $1,000, or fraction thereof | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Residential Plan Review (Building Plan Check, paid at submittal) | 25% of the Building Permit fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
Residential Addition / Remodel / Alteration Permit
VerifiedRequired for additions, interior finish/remodels, decks, patio covers, garages, and other alterations to existing residential structures in Post Falls, governed by the 2018 IRC as locally adopted, with dedicated per-square-foot valuation rates distinct from new-home construction.
Verified 2026-07-03 · Source
Requirements
- Building permit required for additions, interior finish, garages, decks, patio covers, breezeways, and basement finish work
- If plans are for an addition, they must also show the adjoining existing areas and their use
- Stairs, decks, and porches must show attachment/ledger details in the foundation plan; walls over 12 feet in height must be designed and stamped by an Idaho-licensed engineer
- New structures/additions with a floor-area increase greater than 25% must meet Post Falls Municipal Code Section 18.24.020 (General Standards)
- Site plan required showing setbacks, lot coverage percentage, and existing/proposed structure footprints
- Apply through the Community Development Portal
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Community Development Portal
- OptionalResidential Deck GuideCity of Post Falls guide for residential deck construction and permitting
- RequiredConstruction DrawingsSite plan and framing/structural details showing scope of work and connection to the existing structure, per Residential Building Plan Submittal Requirements
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Additions to Residential Homes | $72.62 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Interior Finish Residential Homes | $20.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Basement — Finished | $96.83 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Basement — Unfinished | $77.46 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Residential Garage | $37.72 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Pole Building Residential | $20.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Deck Only | $15.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Deck with Cover | $20.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Deck/Patio Cover and Enclosure | $25.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Patio Cover Only | $20.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Breezeway | $20.00 per sq ft (use Valuation Chart to calculate permit and plan review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Residential Plan Review (Building Plan Check) | 25% of the Building Permit fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Changes to Approved Plans | $100.00 per hour, one half-hour minimum | City of Post Falls Fee Schedule, rev 10-1-2025 |
Electrical Permit
VerifiedRequired for electrical installation, alteration, or repair work in Post Falls, governed by the 2023 National Electrical Code (NEC) as adopted by the City. The City of Post Falls Building Division issues and inspects electrical permits directly within city limits.
Verified 2026-07-03 · Source
Requirements
- Electrical permit required for installation, alteration, or repair of hard-wired electrical systems
- Governed by the 2023 NEC as adopted by the City of Post Falls
- Fee schedule differentiates new residential construction (by square footage), duplex, multi-family, existing residence/modular/manufactured/mobile home, spas/hot tubs, swimming pools, signs, and commercial work
- Apply through the Community Development Portal; may be submitted alongside or after the Building Permit application
Required documents
- RequiredElectrical Permit ApplicationSubmitted online through the Community Development Portal (postfallsid.portal.opengov.com)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New Residential — up to 1,500 sq ft | $130.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| New Residential — 1,501 to 2,500 sq ft | $195.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| New Residential — 2,501 to 3,500 sq ft | $260.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| New Residential — 3,501 to 4,500 sq ft | $325.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| New Residential — over 4,500 sq ft | $325.00 plus $65.00 for each additional 1,000 sq ft | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Duplex | $260.00 per building plus $65.00 per unit | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Three or more multi-family units | $130.00 per building plus $65.00 per unit | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Existing Residence/Modular, Manufactured, or Mobile Home/Detached Shop/Garage | $65.00 fee (one circuit included) plus $10.00 per additional branch circuit | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Spas & Hot Tubs | $65.00 for each inspection | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Swimming Pools | $130.00 (covers two mandatory inspections, excluding lighting) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Signs | $65.00 per sign | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Temporary Service | $100.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial — total contracted amount up to $10,000 | (Total cost of system ÷ 10,000) × 0.01, plus $260.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial — $10,001 to $100,000 | (Total cost of system ÷ 100,000) × 0.005, plus $1,160.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial Plan Review Fee | 55% of the Electrical Permit fee (NEC, Building & Energy Code compliance) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Reinspection | Fee equal to the permit fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Work without a permit | (Total cost of system × 0.02) + $60.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
Plumbing Permit
VerifiedRequired for plumbing installation, alteration, or repair work in Post Falls, governed by the 2017 Idaho State Plumbing Code (ISPC) as adopted by the City. The City of Post Falls Building Division issues and inspects plumbing permits directly within city limits.
Verified 2026-07-03 · Source
Requirements
- Plumbing permit required for installation, alteration, or repair of any plumbing system, fixture, water heater, gas piping, or sewer/water service line
- Governed by the 2017 Idaho State Plumbing Code (ISPC) as adopted by the City of Post Falls
- Processing fee of $35.00 on all permits plus per-fixture/item unit fees
- Apply through the Community Development Portal; may be submitted alongside or after the Building Permit application
Required documents
- RequiredPlumbing Permit ApplicationSubmitted online through the Community Development Portal (postfallsid.portal.opengov.com)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Processing fee on all permits | $35.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Bar sink, bathtub including shower (each fixture) | $8.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Backflow assembly (building/landscape), backwater valve, clothes washer, drain waste/vent piping alteration/replacement (each fixture), floor drain/hub drain, gas piping (each outlet), kitchen sink and/or dishwasher, lavatory, lawn sprinklers (from water connection through backflow device), mobile home w/s hookup, radiant heat (per zone), sewer ejector/sump pump, sewer service, shower, utility sink, water closet, water heater, water piping alteration/replacement (each fixture), water service, water softener | $65.00 up to 16 heads/fixtures; $4.00 per additional head/fixture (17 and up) | City of Post Falls Fee Schedule, rev 10-1-2025 (combined per-fixture unit fee table) |
| Residential Fire Sprinkler Supply from Domestic Water System | 3% of the contract price | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial — up to the first $20,000.00 | 2% of the contract price | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial — $20,001.00 to $100,000.00 | 1% of the contract price | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial — $100,001.00 to $200,000.00 / over $200,001 | 0.5% of the contract price | City of Post Falls Fee Schedule, rev 10-1-2025 |
Mechanical / HVAC Permit
VerifiedRequired for heating, ventilation, air conditioning, and related mechanical installations in Post Falls, governed by the 2018 International Mechanical Code (IMC) and International Fuel Gas Code (IFGC) as adopted by the City.
Verified 2026-07-03 · Source
Requirements
- Mechanical permit required for installation or relocation of furnaces, heat pumps, air handlers, ventilation systems, gas piping, and appliance vents
- Governed by the 2018 IMC and 2018 IFGC as adopted by the City of Post Falls
- Processing fee of $18.00 on all permits (plus a stated $45.00 mechanical permit base fee heading) plus per-unit fees based on appliance type and capacity
- Residential ducted systems require heat load calculations (ACCA Manuals J & D or approved software) submitted with the Mechanical Permit Application
- Apply through the Community Development Portal
Required documents
- RequiredMechanical Permit ApplicationSubmitted online through the Community Development Portal; may be submitted after the initial Building Permit application
- RequiredResidential HVAC Review FormCity of Post Falls form for residential HVAC system review
- OptionalResidential HVAC Air-Balancing FormCity of Post Falls form documenting air-balancing for ducted HVAC systems
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Processing fee on all permits | $18.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Furnace, all types under 100 KBTU | $22.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Furnace, all types over 100 KBTU | $15.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Misc. venting, C/A, duct modifications | $25.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Gas fireplace | $16.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Residential range hood | $15.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Gas water heater | $10.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Ventilating/exhaust fans | $5.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Gas piping, each outlet | $16.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Clothes dryers | $16.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Heat pump, A/C 0-3 tons | $30.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Heat pump, A/C 3+ to 15 tons | $40.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Heat pump, A/C 15+ to 30 tons | $60.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Heat pump, A/C 30+ to 50 tons | $100.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Air handlers/fan coil units under 10,000 CFM | $20.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Air handlers/fan coil units over 10,000 CFM | $25.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Evaporative coolers, all types | $15.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Commercial Mechanical Plan Review | 25% of the Mechanical Permit fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
Re-Roofing Permit
VerifiedRequired for residential and commercial re-roofing in Post Falls, reviewed under the 2018 IBC/IRC roofing provisions and the City's Design Criteria (40 psf roof snow load; Ice Shield underlayment required per IRC R905.1.2 due to occasional severe weathering conditions). Billed as a flat fee rather than a valuation-based Building Permit fee.
Verified 2026-07-03 · Source
Requirements
- Building permit required for re-roofing (Building Permit, billed at the dedicated Re-Roof flat fee rather than the general valuation schedule)
- Ice Shield underlayment required per adopted 2018 IRC Section R905.1.2 due to the City's 'Severe' weathering designation
- Roof assemblies must be designed for the City's Design Criteria: 40 psf roof snow load, 56 psf ground snow load
- Apply through the Community Development Portal
Required documents
- RequiredBuilding Permit Application (Re-Roof)Submitted online through the Community Development Portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Re-Roof, Residential | $150.00 Flat Fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Re-Roof, Commercial | Based upon the valuation of the work to be performed, minimum of $150.00 fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
Solar Photovoltaic (PV) Permit
VerifiedRequired for installation of rooftop or ground-mounted solar photovoltaic systems in Post Falls. The City has no separate solar-specific application or fee category; solar PV installations are permitted through the standard Building Permit (structural/mounting, valuation-based) and Electrical Permit (system wiring/interconnection, governed by the 2023 NEC, including Article 690 PV-specific provisions) processes.
Verified 2026-07-03 · Source
Requirements
- Building Permit required for roof-mounting structural attachment, reviewed against the City's Design Criteria (40 psf roof snow load, 115 mph wind speed/Exposure B) to confirm the roof structure supports the added PV system load
- Electrical Permit required for system wiring and utility interconnection, governed by the 2023 NEC as adopted by the City of Post Falls (NEC Article 690 governs PV-specific installation requirements)
- Building Permit valuation is based on the installed cost of the system, run through the City's general Valuation Chart in the Fee Schedule
- Electrical Permit fee for solar is calculated under the Commercial (total contracted amount) formula in the Fee Schedule, since no dedicated residential-solar line item is published
- Apply through the Community Development Portal for both the Building and Electrical Permit components
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Community Development Portal; used for the structural/mounting review of the PV installation
- RequiredElectrical Permit ApplicationSubmitted online through the Community Development Portal; used for PV system wiring and interconnection review under the 2023 NEC
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (system installed cost run through the general Valuation Chart) | $23.50 minimum ($1-$500 valuation), scaling per the City's Valuation Chart | City of Post Falls Fee Schedule, rev 10-1-2025; no dedicated solar Building Permit line item is published separately from the general valuation schedule |
| Electrical Permit — Commercial (total contracted amount) up to $10,000 | (Total cost of system ÷ 10,000) × 0.01, plus $260.00 | City of Post Falls Fee Schedule, rev 10-1-2025; used for PV interconnection fee calculation absent a dedicated solar line item |
| Electrical Permit — Commercial $10,001 to $100,000 | (Total cost of system ÷ 100,000) × 0.005, plus $1,160.00 | City of Post Falls Fee Schedule, rev 10-1-2025 |
Demolition Permit
VerifiedRequired for demolition of any building within Post Falls city limits, billed as a flat per-lot fee plus a required Engineering Bond distinct from the general Building Permit valuation schedule.
Verified 2026-07-03 · Source
Requirements
- Demolition permit required before demolishing a residential or commercial structure within city limits
- A $1,500.00 Engineering Bond is required in addition to the flat Demolition Permit fee
- Apply through the Community Development Portal
Required documents
- RequiredDemolition Permit ApplicationSubmitted online through the Community Development Portal
- RequiredEngineering Bond ($1,500.00)Required alongside the Demolition Permit fee to secure site cleanup/restoration
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Demolition — Residential, per Lot | $200.00 Flat Fee, plus $1,500.00 Engineering Bond | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Demolition — Commercial, per Lot | $300.00 Flat Fee, plus $1,500.00 Engineering Bond | City of Post Falls Fee Schedule, rev 10-1-2025 |
Fence and Retaining Wall Permit
VerifiedFences in Post Falls do NOT require a Building Division permit — only compliance with Post Falls Municipal Code Section 18.24.020(K) height/placement standards. Retaining walls, however, are a listed Building Permit fee item billed per linear foot.
Verified 2026-07-03 · Source
Requirements
- Fences: NO building permit required. Must be placed on or within the property boundary line; maximum 3 feet in height within a required front yard setback; maximum 6 feet in height in rear/side yard setback areas (per Post Falls Municipal Code Section 18.24.020(K))
- Corner lots: fences may be 6 feet tall along the street-side yard so long as the fence does not extend into the front yard setback; fences abutting an adjoining lot's side yard may not exceed 3 feet or block driveway visibility; a 10-foot-by-10-foot vision-clearance triangle applies at driveways where new fences affect visibility
- Compliance with zoning setbacks and lot coverage is NOT required for fences, walls, signs, or accessory structures that do not require a building permit, per Table 18.20.040 Note 10 of the Official Bulk and Placement Regulations
- Retaining Walls: a Building Permit IS required and is billed at $4.50 per linear foot per the City's Fee Schedule
- Apply through the Community Development Portal for retaining wall permits
Required documents
- OptionalFence Requirements FAQCity of Post Falls handout confirming no permit is required for fences meeting the height/placement standards of PFMC 18.24.020(K)
- RequiredBuilding Permit Application (Retaining Wall)Submitted online through the Community Development Portal for retaining walls
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Fence (meeting height/placement standards) | No fee — no Building Division permit required | City of Post Falls Fence Requirements FAQ; governed by Post Falls Municipal Code Section 18.24.020(K) zoning standards only |
| Retaining Walls | $4.50 per Linear Foot | City of Post Falls Fee Schedule, rev 10-1-2025 |
Accessory Dwelling Unit (ADU) Permit
VerifiedPost Falls permits Accessory Dwelling Units (attached, detached, or basement conversions) as secondary dwellings on single-family lots under Post Falls Municipal Code Sections 18.24.020, 18.24.030, and 18.20.040. ADUs are processed through the standard Residential Building Permit, priced under the same per-square-foot valuation categories as other residential construction (new living space, addition, interior finish, or basement finish, depending on the ADU type).
Verified 2026-07-03 · Source
Requirements
- ADU may be detached, attached, or a basement conversion; must have its own electricity, kitchen, and sanitary facilities
- Size limited to 50% of the primary residence's living area or 1,000 sq ft, whichever is smaller
- Only one ADU allowed per lot; one of the two dwelling units on the lot must be owner-occupied
- Detached ADUs must be set back behind the front of the primary residence (corner lots may place the ADU on the street-side yard)
- One additional paved off-street parking space required
- No separate driveway approach permitted unless from a rear-loaded alley, or a side street on a corner lot
- Building materials must be consistent with the primary residence; no more than one entrance visible from the street; primary residence entrance must remain clearly visible and street-facing
- An existing accessory structure may be converted to an ADU if it is brought up to all currently adopted building code requirements
- Detailed site plan required, drawn to scale, showing full property extents, setbacks, and all existing/proposed structures with square footage
- ADU must comply with lot coverage, height limitations, and setback requirements for its underlying zoning district
- Apply through the Community Development Portal using the standard Residential Building Permit application
Required documents
- RequiredBuilding Permit ApplicationSubmitted online through the Community Development Portal; ADUs use the standard Residential Building Permit application, not a separate ADU-specific form
- RequiredPost Falls Accessory Dwelling Units General InformationCity handout summarizing ADU type diagrams (basement, attached, detached rear-yard, detached side-yard), placement/size/parking standards, and Municipal Code citations
- RequiredSite PlanDetailed, to-scale site plan showing property extents, setbacks, and all existing/proposed structures with square footage of floor area and footprint
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New detached ADU (new living space) | $96.83 per sq ft (use Valuation Chart to calculate Building Permit and plan-review fee) | City of Post Falls Fee Schedule, rev 10-1-2025; no separate ADU fee category is published — new ADU square footage is billed under the same Residential Living Space rate as other new construction |
| Basement-conversion ADU (finished basement) | $96.83 per sq ft (use Valuation Chart to calculate Building Permit and plan-review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Attached ADU built as an addition | $72.62 per sq ft (use Valuation Chart to calculate Building Permit and plan-review fee) | City of Post Falls Fee Schedule, rev 10-1-2025 |
| Residential Plan Review (Building Plan Check) | 25% of the Building Permit fee | City of Post Falls Fee Schedule, rev 10-1-2025 |
Sources & verification
Verified against official sources. Last reviewed 2026-07-03.
Fee schedules
Applications & forms
Checklists & handouts
Online permit portal
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 Post Falls building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.