Spokane Valley ADU Regulations & Building Guide

Spokane Valley is a vibrant community located in Washington in Spokane County with a population of approximately 107,400. As demand for housing continues to grow, accessory dwelling units (ADUs) have become an increasingly popular solution for homeowners looking to add living space, generate rental income, or house family members.

GatherADU provides comprehensive ADU services to Spokane Valley residents, including custom design, permit assistance, and full construction management. Our team understands local building codes and zoning regulations to ensure your project proceeds smoothly.

Washington State ADU Laws

Washington state has enacted legislation to encourage ADU construction as part of efforts to address housing affordability and availability.

Key Washington ADU Regulations:

• Size Limits: Vary by jurisdiction, typically 800-1,000 sq ft.
• Parking: Many cities have reduced or eliminated parking requirements.
• Short-Term Rentals: Local regulations may apply to ADU rentals.

Spokane Valley Local Requirements

Contact GatherADU for specific information about ADU regulations in Spokane Valley, Washington.

California law (AB 68, AB 881, SB 9, and subsequent legislation) guarantees your right to build ADUs. Cities cannot:

• Require owner-occupancy for ADUs permitted after 2020
• Require additional parking for ADUs near transit
• Charge impact fees for ADUs under 750 sq ft
• Deny ADUs that meet state minimum standards
• Impose lot coverage limits that prevent a 800 sq ft ADU

If you believe your ADU application is being unfairly denied, California HCD can intervene on your behalf.

Washington ADU Legislation Overview

Washington state continues to expand ADU opportunities for homeowners across the state.

Key Washington ADU Developments:

• Statewide mandate for cities to allow ADUs
• Reduced parking requirements in many jurisdictions
• Streamlined permitting processes

Spokane Valley, Washington, is a suburban city located in Spokane County, part of the Spokane metropolitan area. Known for its scenic beauty, family-friendly environment, and community-focused atmosphere, Spokane Valley is an attractive place for residents seeking a blend of urban and rural living. With a population of approximately 107,400, the city offers a range of amenities and opportunities.

Geography and History

Spokane Valley lies along the Spokane River and is characterized by its picturesque landscapes, including parks and green spaces. The city has evolved from a rural farming community into a thriving suburban area with a growing population and diverse economy.

Local Economy

Spokane Valley’s economy is diverse, combining traditional industries with emerging sectors:

• Retail and Services: A mix of shopping centers, restaurants, and service businesses cater to local needs.
• Manufacturing: The city hosts various manufacturing operations, including companies in the aerospace and industrial sectors.
• Healthcare: Healthcare facilities, including medical centers and clinics, play a significant role in the local economy.
• Education: The city is served by several educational institutions that contribute to the community’s growth and development.
• Technology and Innovation: Spokane Valley is seeing increased interest in technology and innovation, with new businesses and startups contributing to economic diversity.

Popular Neighborhoods

Spokane Valley features a variety of neighborhoods, each offering unique characteristics:

• Mirabeau: Known for its family-friendly atmosphere, parks, and proximity to the Spokane Valley Mall.
• Pinewood: A residential area with a suburban feel, featuring well-maintained homes and green spaces.
• Greenacres: Offers a mix of rural and suburban living, with access to outdoor recreation and community amenities.
• East Valley: Known for its schools and community-oriented environment, providing a blend of residential and recreational options.
• River Road: Located along the Spokane River, this neighborhood offers scenic views and outdoor activities.

Real Estate Market

Spokane Valley’s real estate market is dynamic, with a range of properties available from single-family homes to larger estates. Recent trends indicate a steady demand for housing, driven by the city’s growth and attractive living conditions. The market includes new construction projects and a variety of housing options to suit different needs.

ADU Regulations in Spokane Valley

Spokane Valley has specific regulations for Accessory Dwelling Units (ADUs) designed to address housing needs and ensure compatibility with the surrounding community:

• Zoning: ADUs are permitted in most residential zones, subject to certain conditions and restrictions.
• Types of ADUs: Both attached and detached ADUs are allowed, including conversions of existing structures and Junior ADUs (JADUs).
• Size Limits:
  • Detached ADUs: Up to 1,000 sqft or 60% of the primary dwelling’s living area, whichever is less.
  • Attached ADUs: Up to 50% of the primary dwelling’s living area or 1,000 sqft, whichever is less.
  • JADUs: Up to 500 sqft.
• Height Restrictions: Detached ADUs are generally limited to 16 feet in height, with some flexibility depending on design and location.
• Parking: One additional parking space may be required for ADUs, though exceptions apply if the property is near public transit.
• Owner Occupancy: As of 2020, there is no owner-occupancy requirement for ADUs, though JADUs must comply with owner-occupancy rules.
• Approval Process: ADUs that meet specific criteria may be eligible for streamlined approval, including ministerial review.
• Multiple ADUs: On multi-family properties, up to two detached ADUs are allowed, or ADUs for a percentage of the existing units within the structure, whichever is greater.
• Impact Fees: Impact fees for ADUs are reduced to encourage development, especially for smaller units.
• Design Standards: ADUs must be designed to complement the primary residence and align with the neighborhood’s character, including architectural style and materials.

These regulations aim to enhance housing availability in Spokane Valley while ensuring new developments integrate smoothly into existing neighborhoods.

Cultural Landmarks and Unique Aspects

Spokane Valley is known for its distinctive features and cultural landmarks:

• Mirabeau Point Park: A popular destination for outdoor activities, including hiking, picnicking, and community events.
• Spokane Valley Heritage Museum: Offers insights into the city’s history and heritage.
• Spokane River: Provides recreational opportunities and scenic beauty along the riverbanks.

Spokane Valley’s ADU regulations reflect the city’s commitment to expanding housing options while maintaining the quality and character of its neighborhoods. With its diverse neighborhoods, growing economy, and scenic surroundings, Spokane Valley is well-positioned to accommodate new housing solutions like ADUs. The city’s approach to ADUs underscores its focus on providing flexible and integrated housing solutions that support community growth and development.

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