ADUs vs Guest Houses in Kitsap County

They may seem the same, but there are a few key distinctions to consider if you're planning on building in Poulsbo, Bremerton, Bainbridge Island, or other areas around Kitsap.

Where a guest house is generally considered an addition to the main house intended for short-term stays, Kitsap County classifies an ADU (Accessory Dwelling Unit) as an entirely separate residence for independent, long-term housing. Below are some key factors to consider if you're struggling to decide which is a better fit for you.

#1 Intended Occupants

The first question to ask yourself is who are your intended occupants? Guest houses are great solutions for visiting friends and family, pool houses or cottages, and areas to separate residents from the main house. However, an ADU is the smarter choice if you're planning on long-term housing for adult children or parents, rentals or Airbnb's, or to increase your property's value and housing utility.

#2 Property Size & Zoning

Regardless of intended use and occupants, the size and location of your property may limit you. ADUs and guest houses are not allowed in every zoning designation in Kitsap County. For instance, properties in rural areas require different elements- like Conditional Use Permits- than properties in more urban areas.

Whether you're considering building an ADU or guest house, factoring in the purpose of your build and Kitsap's zoning and permit rules of your particular property are essential to making an informed decision moving forward with your new build.