You are viewing the permanent link for the record currently in effect, published 2026-07-04.
Hayden building permits
VerifiedHayden, Idaho — as published 2026-07-04.
Verified 2026-07-04 · Source
Codes adopted
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired for new single-family homes, duplexes, townhomes, additions, and accessory structures in Hayden. Reviewed against the City's locally-adopted 2018 IRC and 2018 IECC (Climate Zone 5, effective January 1, 2021) plus City Design Criteria. Applications and construction documents are submitted electronically as PDFs through the BS&A Online portal.
Verified 2026-07-04 · Source
Requirements
- Building permit required for new single-family homes, duplexes, townhomes, additions, alterations, and accessory structures
- Plans must comply with the locally-adopted 2018 IRC and 2018 IECC (Climate Zone 5) and City Design Criteria (Seismic Category C; 90 mph/115 mph 3-second-gust wind speed; 24-inch minimum frost depth; site-specific snow loads per the University of Idaho 1986 methodology, with prescriptive residential minimums of 40 psf roof / 60 psf ground south of Miles Avenue and 50 psf roof / 70 psf ground north of Miles Avenue; 1,500 psf presumptive soil bearing)
- Construction documents submitted as PDFs via bsaonline.com/?uid=2689, ordered as: Building Plans (site plan first, then architectural/structural drawings), Mechanical Docs (REScheck first), Structural Docs (structural calculations; design professional required for all non-prescriptive elements), and Truss Docs (truss layout first, then design documents)
- Fully dimensioned floor, foundation, framing, and wall-bracing plans drawn to scale; mechanical equipment size/efficiency/model/manufacturer shown on plans; four building elevations and two section views; wind and gravity load analysis
- Site plan required per the City's Site Plan Instructions: property lines, adjacent streets, existing/proposed site elements, driveway approach, lot drainage patterns, required planting, utilities, setbacks, easements, site address, lot area, assessor's parcel number, lot & block, north arrow, and drawing scale
- Signatures required prior to permit submittal from the applicable Water District and, for septic systems, Panhandle Health Department
- REScheck energy compliance certificate (Kootenai County, Idaho, Zone 5), signed and dated by the designer, or use of the 2018 IECC prescriptive package (Table 402.1.2) shown directly on plans
- Plumbing, sewer, and electrical work is NOT permitted by the City — apply through the State of Idaho Division of Building Safety (DOPL), (800) 955-3044 or https://dbs.idaho.gov/; state permits must be final-approved before a City Final Inspection can be scheduled
- Application becomes null and void if the permit is not purchased within 180 days of submittal, unless pursued in good faith and issued
Required documents
- RequiredBuilding Permit ApplicationCity of Hayden Building Permit Application, Community Development Department; submitted via bsaonline.com/?uid=2689
- RequiredBuilding PlansFully dimensioned floor, foundation, framing, and wall-bracing plans; four elevations, two section views; wind/gravity load analysis
- RequiredSite PlanPer the City's Site Plan Instructions template: property lines, setbacks, drainage, easements, driveway, utilities, dimensioned distances between structures
- OptionalTruss Layout & CalculationsRequired when trusses are used; truss layout sheet first, followed by design documents
- RequiredREScheck Energy Compliance CertificateSigned and dated by the designer (Kootenai County, Idaho, Zone 5), or the 2018 IECC prescriptive package shown on plans
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — total valuation $1.00 to $2,000 | $50.00 for the first $1,300 plus $3.05 for each additional $100 or fraction thereof | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total valuation $2,001 to $25,000 | $71.35 for the first $2,000 plus $14.00 for each additional $1,000 or fraction thereof | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total valuation $25,001 to $50,000 | $391.75 for the first $25,000 plus $10.10 for each additional $1,000 or fraction thereof | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total 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 Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total 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 Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total 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 Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Building Permit Fee — total valuation $1,000,001 and up | $5,608.75 for the first $1,000,000 plus $3.65 for each additional $1,000 or fraction thereof | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Plan Check Fee (residential, due prior to plan review, non-refundable) | 10% of the Building Permit Fee, $25.00 minimum | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Residential Main Floor Valuation | Building Permit Fee Calculation Table applied to a valuation equal to 100% of ICC R-3 valuation | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
Residential Addition / Remodel / Alteration Permit
VerifiedRequired for additions, remodels, alterations, and accessory structures to existing one- and two-family dwellings in Hayden, reviewed against the locally-adopted 2018 IRC. Additions are valued as a percentage of ICC R-3 valuation depending on whether plumbing is included; remodels are valued at estimated contract price.
Verified 2026-07-04 · Source
Requirements
- Building permit required for additions, remodels, alterations, and accessory structures (garages, pole structures, carports, patio covers, decks)
- Additions with plumbing are valued at 100% of ICC R-3 valuation; additions without plumbing at 75% of ICC R-3 valuation, per the Building Permit Fee Calculation Table
- Remodels are valued at estimated contract price, run through the Building Permit Fee Calculation Table
- Site plan showing dimensioned distances to property lines, existing/proposed structures, and current R-1 (5 ft) / R-S (10 ft) accessory-building setbacks — verify current setbacks against Hayden City Code 11-2-3 rather than relying on a static template
- Retaining walls valued at $14.00 per lineal foot with a $100.00 minimum; fences over 6 feet are a $65.00 flat permit fee
- Plumbing and electrical work associated with the addition/remodel is permitted separately through the State of Idaho DOPL, not the City
Required documents
- RequiredBuilding Permit ApplicationSubmitted via bsaonline.com/?uid=2689; select the appropriate scope of work
- RequiredSite PlanDimensioned site plan showing additions/accessory structures and setbacks from all property lines per current Hayden City Code 11-2-3
- RequiredConstruction DrawingsFraming/structural details showing scope of work and connection to the existing structure
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Additions — with plumbing | Building Permit Fee Calculation Table applied to valuation equal to 100% of ICC R-3 valuation | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Additions — no plumbing | Building Permit Fee Calculation Table applied to valuation equal to 75% of ICC R-3 valuation | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Remodel | Building Permit Fee Calculation Table (or UBC table) applied to estimated contract price | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Open Carport / Patio Cover / Deck | Building Permit Fee Calculation Table applied to valuation equal to 15% of ICC R-3 valuation | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Retaining Wall | $14.00 per lineal foot, $100.00 minimum valuation | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Fence Over 6 Feet | $65.00 flat fee | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Plan Check Fee (residential, non-refundable) | 10% of the Building Permit Fee, $25.00 minimum | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
Electrical Permit (State-Issued — Idaho DOPL, not the City)
VerifiedElectrical permits within Hayden city limits are NOT issued by the City of Hayden. The City's own Residential Permit Application Instructions expressly direct applicants to the State of Idaho Division of Building Safety (DOPL) for electrical permits and inspections, and require state permits to be final-approved before a City Final Inspection can be scheduled.
Verified 2026-07-04 · Source
Requirements
- Electrical permit required for installation, alteration, or repair of any hard-wired electrical system; issued and inspected by the State of Idaho (DOPL Division of Building Safety), NOT the City of Hayden Building Department
- Apply online at https://dbs.idaho.gov/ or by phone at (800) 955-3044
- State electrical permits must be final-approved before the City of Hayden will schedule a City Final Inspection on the associated building permit
- Governed by the National Electrical Code (NEC) as adopted statewide by the Idaho Electrical Board (Idaho Code Title 54, Chapter 10)
Required documents
- RequiredDOPL Electrical Permit (Contractor or Homeowner)Applied for online via dbs.idaho.gov, not through the City of Hayden's BS&A Online portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New Single-Family Dwelling (by living space) — up to 1,500 / 1,501-2,500 / 2,501-3,500 / 3,501-4,500 / over 4,500 sq ft | $130 / $195 / $260 / $325 / $325 plus $65 per additional 1,000 sq ft or portion thereof | State of Idaho DOPL Electrical Permit Fee Schedule — a state fee, not collected by the City of Hayden. This is the same statewide DOPL fee table cited in the Kootenai County unincorporated-area entry. |
| Existing residence, modular/manufactured/mobile home, or detached shop (homeowner permit) | $65 base fee plus $10 per additional branch circuit | State of Idaho DOPL Electrical Permit Fee Schedule |
Plumbing Permit (State-Issued — Idaho DOPL, not the City)
VerifiedPlumbing, sewer, and gas piping permits within Hayden city limits are NOT issued by the City of Hayden. The City's own Residential Permit Application Instructions direct applicants to the State of Idaho Division of Building Safety (DOPL) for plumbing, sewer, and electrical permits and inspections.
Verified 2026-07-04 · Source
Requirements
- Plumbing permit required for installation, alteration, or repair of any plumbing system, fixture, water heater, gas piping, or sewer/water service line; issued and inspected by the State of Idaho (DOPL Division of Building Safety), NOT the City of Hayden Building Department
- Apply online at https://dbs.idaho.gov/ or by phone at (800) 955-3044
- State plumbing permits must be final-approved before the City of Hayden will schedule a City Final Inspection on the associated building permit
- Governed by the Idaho State Plumbing Code, adopted statewide under Idaho Code Title 54, Chapter 26
Required documents
- RequiredDOPL Plumbing Permit (Contractor or Homeowner)Applied for online via dbs.idaho.gov, not through the City of Hayden's BS&A Online portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| New Single-Family Dwelling (by living space) — up to 1,500 / 1,501-2,500 / 2,501-3,500 / 3,501-4,500 / over 4,500 sq ft | $130 / $195 / $260 / $325 / $325 plus $65 per additional 1,000 sq ft or portion thereof | State of Idaho DOPL Plumbing Permit Fee Schedule — a state fee, not collected by the City of Hayden. |
| Water heater replacement (only) | $65.00 | State of Idaho DOPL Plumbing Permit Fee Schedule |
Mechanical / HVAC Permit
VerifiedRequired for heating, ventilation, air conditioning, and gas-appliance installations in Hayden. Unlike electrical and plumbing, mechanical/HVAC permits ARE issued directly by the City of Hayden Building Department using its own itemized Residential Mechanical Worksheet, governed by the locally-adopted 2018 IMC and 2018 IFGC.
Verified 2026-07-04 · Source
Requirements
- Mechanical permit required for furnaces, boilers, heat pumps/AC, gas appliances, gas piping, ventilation systems, and appliance vents — issued by the City of Hayden (not DOPL)
- Governed by the 2018 IMC and 2018 IFGC as adopted by the City effective January 1, 2021
- New-construction ducted systems require the HVAC Certification Form: duct leakage testing (post-construction total duct leakage = floor area x 0.12 CFM @ 25 Pa; duct leakage to outdoors = floor area x 0.08 CFM @ 25 Pa; rough-in with air handler installed = floor area x 0.06 CFM @ 25 Pa; rough-in without air handler installed = floor area x 0.04 CFM @ 25 Pa) and an Air Balance Certification per ACCA Manual J/D
- $350.00 flat 'HVAC System Review and Permit' fee applies alongside the itemized equipment fees on the Residential Mechanical Worksheet
- Apply via the Residential Mechanical Worksheet submitted through bsaonline.com/?uid=2689
Required documents
- RequiredResidential Mechanical WorksheetCity of Hayden itemized fee worksheet listing processing fee and per-equipment charges (ductwork, water heaters, furnaces, boilers, heat pumps, fireplaces, air handlers, etc.)
- RequiredHVAC Certification FormDuct Leakage Certification and Air Balance Certification (ACCA Manual J/D) required for new-construction ducted HVAC systems
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| HVAC System Review and Permit | $350.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Processing Fee (Residential Mechanical Worksheet) | $40.00 | City of Hayden Residential Mechanical Worksheet |
| Gas Equipment (Furnace) | $25.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Gas Water Heater | $21.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Gas Piping (each outlet) | $3.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Heat Pump or A/C < 3 tons / >3-15 / >15-30 / >30-50 / >50 tons | $21.00 / $38.00 / $53.00 / $78.00 / $130.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Boiler/Refrigerator <100,000 / 101-400M / 401-1000M / 1,001-1750M / >1750M BTU | $20.00 / $36.00 / $49.00 / $78.00 / $78.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Additional Ductwork | $21.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Gas Fireplace/Free Standing Stove/Barbeque | $21.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Solid Fuel Fireplace/Woodstove (listed) | $38.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Air Handler <10,000 CFM / >10,000 CFM | $16.00 / $27.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
| Ventilating Fans / Evaporative Coolers / Clothes Dryer / Type I or II Hood / Gas Range-Cook Top | $10.00 / $14.00 / $16.00 / $16.00 / $21.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
Demolition Permit
VerifiedRequired for demolition of an existing structure within Hayden city limits. The City charges a single flat demolition permit fee per its published Fee Schedule.
Verified 2026-07-04 · Source
Requirements
- Demolition permit required for demolition of an existing structure within city limits
- Application submitted through bsaonline.com/?uid=2689
- Flat fee per the City of Hayden Fee Schedule, Exhibit A
Required documents
- RequiredDemolition Permit ApplicationSubmitted via the City's BS&A Online portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Demolition Permit | $110.00 | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
Accessory Dwelling Unit (ADU) Permit
VerifiedADUs are a permit type explicitly listed on the City of Hayden Building Department's own permit-type page, governed by Hayden City Code 11-2-5 (Development Standards Specific to Type of Use). Reviewed as a Residential Building Permit against the ADU-specific zoning standards in addition to the standard 2018 IRC.
Verified 2026-07-04 · Source
Requirements
- ADU floor area capped at 1,000 sq ft; if within the same structure as the principal dwelling and exceeding 1,000 sq ft, the structure is instead classified as a duplex and is only allowed per the underlying zone's duplex regulations, not the ADU standard
- No new or separate driveway approach permitted from a public or private road — the ADU must use the existing driveway serving the principal dwelling (or the existing structure being converted)
- Access to the ADU must be a minimum of 12 feet wide with a minimum unobstructed height of 13.5 feet to accommodate emergency service vehicles; if the ADU is located more than 150 feet from a public or private road, a turnaround meeting Northern Lakes Fire Protection District and City Engineer requirements is required
- ADU setbacks: minimum 30 feet from the front property line, minimum 10 feet from side and rear property lines (stricter than the general accessory-building setbacks in the underlying zone)
- The ADU may be attached to the principal dwelling, a stand-alone structure, or built within an accessory structure, but must have an entrance separate from the principal dwelling's entrance
- The ADU is treated as a separate single-family dwelling for sewer usage and capitalization-fee purposes, but must connect to the same water and sewer utilities as the principal residence
- Reviewed as a Building Permit through the standard bsaonline.com/?uid=2689 application, subject to the same 2018 IRC, IECC, and Design Criteria as any residential structure
Required documents
- RequiredBuilding Permit ApplicationSubmitted via bsaonline.com/?uid=2689, noting the ADU designation and referencing Hayden City Code 11-2-5 compliance
- RequiredSite PlanMust show the ADU's 30 ft front / 10 ft side-rear setbacks, existing driveway serving both dwellings, and access width/height for emergency vehicles
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit Fee — valuation-based (same Building Permit Fee Calculation Table as other residential structures) | $50.00 minimum ($1.00-$2,000 valuation tier), scaling per the City of Hayden Fee Schedule | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 — no separate ADU-specific fee line is published; ADUs are billed through the general residential valuation schedule |
| Plan Check Fee (residential, non-refundable) | 10% of the Building Permit Fee, $25.00 minimum | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 |
Solar Photovoltaic (PV) Permit
VerifiedRequired for installation of rooftop or ground-mount solar photovoltaic systems within Hayden city limits. Requires a City Building Permit (structural/racking, valuation-based per the City's Fee Schedule) plus a State of Idaho electrical permit (wiring/interconnection) issued by the Division of Occupational and Professional Licenses (DOPL, dbs.idaho.gov) -- the City's own Residential Permit Application Instructions expressly direct applicants to the state for electrical permits and require state permits to be final-approved before a City Final Inspection can be scheduled. The state's Contractor Electrical Permit Worksheet has a dedicated checkbox and valuation-based fee formula for 'Solar, Renewable Energy, power generation, power production, or energy storage systems.'
Verified 2026-07-20 · Source
Requirements
- City Building Permit Application submitted via the BS&A Online portal for the structural/racking scope
- Electrical wiring/interconnection scope requires a State of Idaho DOPL Contractor Electrical Permit (or Homeowner Electrical Permit if self-installed), applied for online at dbs.idaho.gov -- NOT through the City's BS&A Online portal, consistent with this corpus's existing electrical-permit entry for Hayden
- State electrical permits must be final-approved before the City of Hayden will schedule a City Final Inspection on the associated building permit
- On the DOPL Electrical Permit Worksheet, check the 'Solar, Renewable Energy, power generation, power production, or energy storage systems' box under 'Other Installations including Commercial/Industrial/Solar/Renewable Energy' and enter the total cost of the electrical system
- Renewable energy installations require a plan check prior to final inspection, per the DOPL Electrical Permit Worksheet
Required documents
- RequiredCity of Hayden Residential Permit ApplicationFor the structural/racking scope, submitted via BS&A Online
- RequiredIdaho DOPL Contractor (or Homeowner) Electrical Permit ApplicationState application (dbs.idaho.gov) with an Electrical Permit Worksheet (Fee Schedule) that includes a dedicated Solar/Renewable Energy checkbox and valuation-based fee formula
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| City Building Permit Fee — total valuation $2,001 to $25,000 (typical residential solar range) | $71.35 for the first $2,000 plus $14.00 for each additional $1,000 or fraction thereof | City of Hayden Fee Schedule, Exhibit A, effective 9/1/2023 -- no dedicated solar/photovoltaic building fee line exists; billed under this general valuation table for the structural/racking scope |
| City Plan Check Fee (residential, due prior to plan review, non-refundable) | 10% of the Building Permit Fee, $25.00 minimum | City of Hayden Fee Schedule, Exhibit A |
| State DOPL Electrical Permit — Solar/Renewable Energy, up to $10,000 system cost | (total system cost x 0.02) + $60 | Idaho DOPL Contractor Electrical Permit Worksheet (Fee Schedule), Rev. 8/17/2022 -- a state fee, not collected by the City of Hayden |
| State DOPL Electrical Permit — Solar/Renewable Energy, $10,001-$100,000 system cost | ((system cost - $10,000) x 0.01) + $260 | Idaho DOPL Contractor Electrical Permit Worksheet, Rev. 8/17/2022 |
| State DOPL Electrical Permit — Solar/Renewable Energy, over $100,001 system cost | ((system cost - $100,000) x 0.005) + $1,160 | Idaho DOPL Contractor Electrical Permit Worksheet, Rev. 8/17/2022; renewable energy installations require a plan check prior to final inspection |
EV Charger / EVSE Permit
VerifiedHayden has no dedicated EV charger or EVSE permit and no distinct fee line item for electric vehicle charging equipment. Electrical permits within Hayden city limits are NOT issued by the City -- the City's own Residential Permit Application Instructions direct applicants to the State of Idaho Division of Building Safety (DOPL) for electrical permits and inspections. An EV charger circuit is not a power-generation or energy-storage system, so it does not require a City structural/building permit. On the DOPL Contractor Electrical Permit Worksheet, EV charger circuits fall under the general 'Other Installations including Commercial/Industrial/Solar/Renewable Energy' valuation-based fee formula (the same formula used for solar, just without the Solar/Renewable Energy checkbox), since no dedicated EV/EVSE line item exists on the state form.
Verified 2026-07-20 · Source
Requirements
- No City of Hayden building permit is required for a standard EV charger installation -- only electrical work is involved
- Electrical permit issued by the State of Idaho Division of Building Safety (DOPL), NOT the City of Hayden -- apply online at dbs.idaho.gov or by phone at (800) 955-3044
- On the DOPL worksheet, EV charger circuits fall under 'OTHER INSTALLATIONS including COMMERCIAL/INDUSTRIAL/SOLAR/RENEWABLE ENERGY' -- this category 'shall apply to any and all electrical installations not specifically mentioned elsewhere on this form,' and EV/EVSE circuits have no dedicated line item, so they fall under this catch-all
- Do NOT check the 'Solar, Renewable Energy, power generation, power production, or energy storage systems' box on the DOPL worksheet for a straight EV charger install -- the fee formula is identical either way
- Governed by the National Electrical Code (NEC) as adopted statewide by the Idaho Electrical Board (Idaho Code Title 54, Chapter 10)
Required documents
- RequiredDOPL Electrical Permit (Contractor or Homeowner)Applied for online via dbs.idaho.gov, not through the City of Hayden's BS&A Online portal; EV charger circuit work is priced under the 'Other Installations' valuation-based formula
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| State DOPL Electrical Permit -- Other Installations, up to $10,000 system cost | (total cost of system x 0.02) + $60 | Idaho DOPL Contractor Electrical Permit Worksheet (Fee Schedule), Rev. 8/17/2022 -- same formula tier used for solar/renewable energy; no dedicated EV/EVSE line item exists on the state form. This is a state fee, not collected by the City of Hayden. |
| State DOPL Electrical Permit -- Other Installations, $10,001-$100,000 system cost | ((total cost of system - $10,000) x 0.01) + $260 | Idaho DOPL Contractor Electrical Permit Worksheet, Rev. 8/17/2022 |
Sources & verification
Verified against official sources. Last reviewed 2026-07-04.
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 Hayden building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.