What Does “Backyard Cottage” Mean in Seattle Zoning?
In Seattle, a backyard cottage is a detached accessory dwelling unit (DADU). Where the name comes from and what a building needs to count as one.
Build Now, Pay Later: Realistic Ways to Defer the Cost of an ADU
Promotional financing, staged billing, interest-only draws and future rent can push ADU costs later. Here is how each lever works and what it really costs.
How Long Does It Take to Build an ADU? A Realistic Timeline
A detached ADU usually takes seven to fourteen months from lot check to move-in. See where the time goes and what slows projects down.
ADU Plans Under 800 Square Feet Compared: Main St, Country Cottage and Cedar Groove
One bedroom or two? Main St, Country Cottage and Cedar Groove side by side: layouts, storage, laundry, outdoor space and who each small ADU plan suits best.
HB 1337 by City: How Puget Sound Cities Updated Their ADU Codes
Washington’s ADU law set minimums every city must meet. See how Seattle, Bellevue, Everett, Tacoma and 10 more cities adopted it, and where local rules differ.
Seattle ADU and DADU Rules: Lot Size, Height and Owner Requirements
Two ADUs per lot, no owner on site, no parking: what Seattle’s updated code allows for ADUs and backyard cottages, from size and height to setbacks and trees.
How to Finance an ADU in Washington: Every Option Compared
HELOC, construction loan, refinance, renovation mortgage, personal loan or cash: how each way to pay for an ADU works and which homeowner it fits.
ADU Utility Connections: Water, Sewer and Electrical Costs Homeowners Forget
Learn how water, sewer, electrical service, trenching, capacity, and site conditions can change the true cost of an ADU or DADU project.
Attached ADU vs DADU: Utilities, Fire Separation, Access and Construction Complexity
Compare attached ADUs and DADUs by utilities, access, fire separation, structure, site work, privacy, cost drivers, and construction complexity.
ADU Construction: What Homeowners Should Know Before Building
Plan ADU construction with clear guidance on zoning, costs, permits, timelines, contractor selection, utility needs, and contracts before building.