According to the Northwest Multiple Listing Service, homes with ADUs comprised 2.3% of total residential properties sold by NWMLS brokers in 2023. The majority of these sales occurred in King County (462 listings), followed by Pierce (167), Snohomish (150), Kitsap (78), Thurston (60), Island (51), and Whatcom (54) counties. Additionally, over 300 homes with ADUs were sold across other counties covered by Northwest MLS.
Homes with ADUs tend to attract a specific type of buyer, as indicated by NWMLS data showing that, on average, these homes remained on the market longer than those without ADUs in most counties.
Accessory dwelling units (ADUs) offer a fantastic opportunity to expand living space for family members, generate additional income, or boost the value of your property. If you're considering buying a home with an attached or detached ADU, NWMLS brokers are available to assist you every step of the way. With advanced search tools tailored to your preferences and needs, they can locate homes in your desired location and filter results based on ADU square footage, number of bedrooms, and bathrooms, ensuring you find the perfect fit for your requirements.