An ADU is an accessory dwelling unit; a DADU is a detached accessory dwelling unit. The main distinction is whether the additional dwelling space is within or connected to another building, or stands separately.
Start with the intended use
Describe who would use the space and how it should relate to the main home. Those needs influence the planning conversation without establishing what a property is allowed to accommodate.
High housing costs can lead Greater Seattle homeowners to consider additional dwelling space. Compare your goals with the existing property rather than relying on a general trend.
Review the property, not assumptions
Access, daylight, privacy and the relationship to outdoor space are useful early topics. An attached space and a detached cottage can affect the household differently.
Local requirements and approvals are property-specific. This guide does not provide zoning rules or promise approval. BNB Contractors offers ADUs and DADUs; contact Bill to discuss your project.
Discuss your Greater Seattle project
Learn about ADUs & DADUs and request an estimate. BNB Contractors serves the Greater Seattle Area from Edmonds, WA. Call (206) 288-3510 to speak with Bill Bayaraa.
Frequently asked questions
Are you a registered contractor?
Yes. WA Contractor Reg. #BNBCOC*785OA.
How do I request an estimate?
Call (206) 288-3510, email bnbcontractors22@gmail.com, or send your project details through the estimate form.