Short-term rentals (STRs) are permitted in Woodinville, Washington, under state law and county rules. As of the materials provided, Woodinville does not appear to have city‑specific STR ordinances of its own (it is a non‑code city), so the primary regulatory framework comes from the State of Washington and King County (which governs unincorporated areas, including parts of Woodinville’s market area). In short, yes—STRs are allowed, but you must comply with state health/safety standards and county licensing and tax rules for any STR located outside incorporated city limits.

How to Start a Short-Term Rental Business in This Market

1. Property feasibility and zoning

• Confirm the subject property is inside or outside Woodinville city limits. If outside (unincorporated King County), county STR rules apply. If inside city limits, check whether any additional municipal licenses/permits exist (none were identified in the provided materials; verify with the City of Woodinville as a due‑diligence step).

2. County STR licensing (King County)

• For unincorporated King County, obtain a Short‑Term Rental (STR) license before listing or hosting. King County guidance indicates:
  • “Whole home” STRs require an STR license.
  • “Hosted” STRs (owner on‑site) are allowed but may require registration or another accommodation type (e.g., “Hosted Guestroom” or “Bed & Breakfast”) rather than an STR license; confirm the appropriate category.
• Submit the application, pay fees, pass a safety inspection (see Required Documents below), and display the STR license number in advertising and inside the unit.

3. State and local tax registrations

• Register for Washington State sales tax (lodging tax), employer withholding (if you have employees), and unemployment insurance as applicable.
• Collect and remit lodging taxes (state and county Transient Rental Tax). King County also administers a regional “Hotel/Motel” ( lodging) tax for unincorporated areas; your county license/registration helps route these taxes correctly.

4. Business registration

• For unincorporated King County, register a business name (optional) and pay business & occupation (B&O) tax if required for your gross receipts.
• Maintain separate financial records for the STR; pay all quarterly estimated taxes as applicable.

5. Platform setup and compliance

• Post the STR license number (if required) on all listing platforms (Airbnb, VRBO, etc.) and inside the unit.
• Follow advertising restrictions (e.g., no exterior STR signage in residential areas where prohibited).
• Provide emergency information and house rules to guests; keep a guest log for at least three years if hosting 60+ nights annually (common state requirement; confirm current thresholds).

6. Guest onboarding and operations

• Enforce occupancy and quiet hours; screen for events/parties. Provide 24/7 guest support and local contact information.
• Coordinate cleaning turnover and quality control to maintain positive reviews and regulatory compliance.

Required Documents, Permits, Licenses, and Guidelines

King County STR license (if located in unincorporated King County)

• Application (online), fee payment, proof of principal residence (owner) if hosted.
• Liability insurance certificate (commercially reasonable limits; see county guidance).
• Nuisance/party plan acknowledging noise/occupancy/behavior standards.
• Safety inspection (typically includes smoke and carbon monoxide alarms, fire extinguisher, address/route identification, safe sleep configurations, etc.). Current details are outlined in the King County code for STRs and vacation rentals.

State compliance (Washington)

• Washington sales tax registration and lodging tax remittance.
• Business license (state/county) and B&O tax registration for unincorporated locations.
• Compliance with WAC health/safety standards (e.g., smoke/CO alarms, sanitation, life safety measures).
• Guest registration recordkeeping if hosting 60+ nights per year (confirm current threshold and retention period).

Local advertising

• Display of license/registration numbers in listings and in the unit.
• No posting of STR signs where prohibited by local rules.

Safety and operations

• Functioning smoke detectors and carbon monoxide alarms.
• Fire extinguisher(s), clearly posted egress information.
• Address signage visible from street; safe routes marked if needed.
• House rules and emergency procedures; occupancy not to exceed posted limits.

Specific Regulations (City, County, State)

State of Washington (RCW/WAC)

• Short-term rentals are permitted under Washington law. RCW 64.37 and related statutes establish the statewide framework for STRs, including local authority, taxation, and registration.
• Health/safety standards for lodging are in the Washington Administrative Code (WAC) and typically require adequate egress, alarms, sanitation, and safe conditions. For sleeping rooms, a commonly cited standard is at least 70 square feet of habitable space per occupant plus additional space for egress. Confirm current WAC references for “Transient Lodging” and any recent amendments.

King County (Unincorporated Areas)

• King County Codes 6.124 and 6.125 govern lodging establishments and short‑term rentals. Current framework generally requires:
  • An STR license for “whole home” STRs.
  • A maximum of 2 persons per bedroom plus 2 additional occupants (i.e., 4-person cap per bedroom), with an overall cap not exceeding 12 occupants.
  • Inspection and compliance with safety standards, and maintenance of guest records for several years if you exceed an annual hosting threshold.
  • Advertising rules, including license number display and prohibitions on exterior signs in residential areas.
• County lodging tax applies; registration/licensing typically ensures correct tax routing.

City of Woodinville

• The provided draft code link (Chapter 21.21 Use and Occupancy) and other city materials do not contain city‑specific STR provisions in the excerpts reviewed. Therefore, no additional city STR license or fee was identified in the provided content. Verify with the City of Woodinville to confirm there are no recently adopted city-level STR rules or business licensing requirements that would apply inside city limits.

Contact Information (Phone, Email, Website)

King County (Licensing, Tax, and STR Program)

• Website (general landing): kingcounty.gov/ home (use “business,” “licenses,” and “STR” or “vacation rental” search terms)
• Business Licensing (unincorporated King County): kingcounty.gov/clirk (start a business/license search; obtain B&O tax registration)
• Short‑Term Rentals / Lodging: Search “King County Short-Term Rental” on kingcounty.gov for program pages, forms, and fee schedules
• Telephone/email: Not specified in the provided materials; use the King County contact pages to find current STR staff contacts and inspection scheduling

State of Washington

• Department of Revenue (DOR): dor.wa.gov (register for sales tax, lodging tax, employer accounts; find filing instructions)
• Department of Labor & Industries (L&I): lni.wa.gov (workers’ comp/employer safety compliance)
• Washington State Business Portal (business licensing and registration): business.wa.gov

City of Woodinville (Verification of City-Level Requirements)

• Website: www.ci.woodinville.wa.us
• Permit/Licensing Contact (planning or building counter): www.ci.woodinville.wa.us/150/Permit-Center
• Telephone: Use the city’s Permit Center listing on the site (not specified here)

King County Sheriff – Non‑Emergency (for noise/disturbances/party issues)

• Phone: 206‑296‑3311

Source Pages (Available)

• King County Code 6.124 – Lodging Establishments: library.municode.com/wa/king_county/codes/code_of_ordinances?nodeId=TITLE_6BUCO_THCH6.124LODGESTA
• King County Code 6.125 – Short-Term Rentals: library.municode.com/wa/king_county/codes/code_of_ordinances?nodeId=TITLE_6BUCO_THCH6.125SHOTEREREVAT
• Washington State Department of Revenue (DOR): dor.wa.gov
• Washington State Business Portal: business.wa.gov
• City of Woodinville Permit Center: www.ci.woodinville.wa.us/150/Permit-Center
• Draft Woodinville Code – Chapter 21.21 Use and Occupancy (context for city zoning; no STR rules identified in provided excerpt): www.ci.woodinville.wa.us/DocumentCenter/View/779/Draft-Code---Chapter-2121-Use-and-Occupancy-DOCX

Notes for Investors

• Occupancy caps, inspection checklists, and annual thresholds can change; confirm the current King County requirements before licensing.
• Check HOA/CC&R restrictions and homeowners insurance underwriting rules—many policies exclude STRs or require special endorsements.
• Consider zoning compliance (residential uses), parking availability, and community impacts (noise, trash, and events).
• Because Woodinville does not have city‑specific STR rules identified in the provided content, most compliance will be state‑ and county‑driven; verify with the city’s planning department for any updates.