DADU resale value comes down to a handful of factors: location and comparable sales nearby, size and layout, finish quality, and how private and physically separate the unit feels from the main house.
Budgeting off the construction number alone is the most common way a build-to-sell project ends up with a thinner margin than expected.
Condoizing a DADU in Seattle generally follows six steps: completing construction, commissioning a licensed survey, drafting a condominium declaration, forming a homeowners association, looping in your lender if there’s an existing mortgage, and recording everything with King County.
Under Washington’s HB 1337, cities and counties can no longer prohibit a homeowner from selling a DADU as its own condominium unit, separate from the main house — and they can no longer require you to live in either unit as a condition of doing so.
If your plan is to build a DADU and sell it — not rent it out — your financing needs to be built around a sale, not years of rental income.
Thinking about building an ADU? Here's whether it actually pays off — and every financing option available to make it happen, from HELOCs to ADU-specific construction loans.
That garage sitting half-empty could be your fastest path to extra living space. Here's exactly how a garage-to-ADU conversion works, step by step — plans, timelines, and what it really costs.
Wondering what an ADU actually costs to build? We break down every phase — design, permits, construction, and finishes — so you can budget with real numbers instead of guesswork.
The math behind ADU return on investment, and the single error almost every online calculator makes.
The permit-time story is real. The 2026 timing problem almost no one mentions is bigger.
As demand rises, understanding DADU vs ADU becomes key for making the right investment decision.