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Washington · C2b Sub-state (city) facts · 4 min read

ADU, Duplex Conversion, and Off-Street Parking Rules for Landlords in Olympia, Washington

Direct statutory answer

Landlords in Olympia, Washington must adhere to specific zoning laws for ADU and duplex conversions, including obtaining necessary permits and adhering to parking requirements.

WASHINGTON STATUTORY RECORDMunicipal Zoning Standard ADU, Duplex Conversion, and Off-StreetParking Rules for Landlords in Olympia, PRIMARY UNITADU SUITESetback & Height RestrictionsBlueprint & Unit Sizing• Size cap: max 25% of multifamily footprint• Minimum dwelling unit dimensions apply• Independent exterior ingress requiredMUNICIPAL BUILDING DEPTPermitting & Safety DivisionCERTIFICATE OF OCCUPANCYCOO REQUIRED PRIOR TO LEASEZoning & Permit Mandate• Formal plans review before conversion• Mandatory pre-occupancy safety walk• Unpermitted rentals face code citationsP1Primary UnitDedicated StallP2ADU TenantOff-Street ReqParking Minimum Rules• Minimum 1 designated off-street space• Street parking cannot satisfy ADU ratio• Paved driveway / carport required

ADU, Duplex Conversion, and Off-Street Parking Rules for Landlords in Olympia, Washington

Landlords in Olympia, Washington must adhere to specific zoning laws for ADU (Accessory Dwelling Units) and duplex conversions, including obtaining necessary permits and adhering to parking requirements. This guide provides a comprehensive overview of the rules applicable in Olympia.

Permitting, Zoning, or Statutory Basis

In Olympia, the zoning laws are governed by the City of Olympia Code. For ADU and duplex conversions, landlords must comply with Chapter 18.50 of the Olympia City Code. This chapter outlines the requirements for adding an ADU or converting a single-family home into a duplex.

ADU Requirements

To add an ADU to your property, you must:

  • Obtain a permit from the City of Olympia.
  • Adhere to the maximum height restrictions set by Chapter 18.50, which limits ADUs to a maximum of 30 feet in height.
  • Ensure that the ADU meets all building and safety codes.

Duplex Conversion Requirements

Converting a single-family home into a duplex involves:

  • Obtaining a permit from the City of Olympia.
  • Adhering to the maximum height restrictions set by Chapter 18.50, which limits duplexes to a maximum of 35 feet in height.
  • Ensuring that the conversion meets all building and safety codes.

Lease Clauses, Notice Periods, and Timing Requirements

When leasing an ADU or duplex unit in Olympia, landlords must include specific clauses in their lease agreements to protect both parties. These clauses should address:

Security Deposit Clauses

Landlords must comply with the Washington State Real Estate Commission’s security deposit rules. These rules require landlords to:

  • Provide a written statement of the amount and purpose of the security deposit.
  • Allow tenants to inspect the security deposit within 10 days of moving out.
  • Return the security deposit within 30 days of receiving a written request from the tenant.

For more information on security deposit accounting rules, refer to this guide.

Notice Periods

Landlords must provide tenants with adequate notice before entering the property for maintenance or inspection. The notice period should be at least 24 hours, but landlords may provide shorter notice in emergencies.

Timing Requirements

Landlords must adhere to specific timing requirements when serving notices or making changes to lease agreements. For example, landlords must provide tenants with at least 30 days’ notice before increasing rent or terminating the lease.

Defensible Record-Keeping & Compliance Checklist

To ensure compliance with Olympia’s zoning laws and avoid potential legal issues, landlords should maintain a defensible record-keeping system. This includes:

  1. Permit Applications: Keep copies of all permit applications and approvals.
  2. Lease Agreements: Maintain copies of all lease agreements, including any amendments or modifications.
  3. Security Deposit Records: Keep detailed records of all security deposits, including receipts and inspection reports.
  4. Maintenance Records: Document all maintenance activities and repairs performed on the property.
  5. Tenant Notices: Keep copies of all notices served to tenants, including eviction notices and rent increase notifications.

By following these guidelines and maintaining a defensible record-keeping system, landlords in Olympia can ensure that their properties are compliant with local zoning laws and avoid potential legal issues.

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