Mercer Island runs on interim ADU rules with a shared floor area budget, parking tied to lot size and a wet season limit on steep lots. Check the land first.
How Mercer Island Lot Conditions Shape ADU Planning
read more
Design Materials and Sustainability
What Renton Homeowners Should Check Before a DADU
Renton allows two ADUs per lot and offers free pre-approved model plans. Its size cap, parking rule and site permits still differ from Seattle’s.
How Shoreline Rules Affect Accessory Dwelling Unit Options
The City of Shoreline sets its own ADU code, separate from Seattle and from shoreline environmental rules. Two units, sprinklers and no stock plans stand out.
Backyard Cottage Planning Questions for Redmond Homeowners
Redmond allows two ADUs or tiny homes on each residential lot. Its size cap, tiny home rules and sprinkler requirement differ from what Seattle owners know.
What to Research Before Building a Kirkland Backyard Cottage
Kirkland allows two ADUs on most lots and offers pre-approved DADU plans, but shoreline lots, parking and a recorded covenant set it apart from Seattle.
Planning a DADU on a Bellevue Residential Lot
Bellevue allows two ADUs on most residential lots, but its size cap, parking rule and permit path differ from Seattle. Start with the Land Use Code.
How Do Seattle ADU Rules Differ From Nearby Cities?
Washington law sets a shared floor for ADUs, but each city near Seattle writes its own code. Size caps, parking and permit portals change at the city line.
How Do You Decide Whether a DADU Builder Is Right for You?
When every builder seems capable, look at how each one handles your lot, talks about risk and answers in writing. That is where the real differences show.
What Should a DADU Construction Warranty Address?
When a door sticks or a stain appears after move-in, the warranty decides who fixes it. Know what it covers, how to report problems and what to keep.
Which Builder References Are Most Useful to Homeowners?
A hand-picked list of happy clients is only a start. Call owners with projects like yours, ask open questions and confirm one address in permit records.