INDEX_00 / FULL_DIRECTORY
Every page on the site
Complete directory of every page on Golden State ADU Builders — services, cities, neighborhoods, cost data, ROI, permits, zoning, and insights across the Puget Sound.
Core pages
Services
Regional hubs
City pages (32)
- Seattle ADU
- Bellevue ADU
- Kirkland ADU
- Redmond ADU
- Tacoma ADU
- Sammamish ADU
- Issaquah ADU
- Renton ADU
- Mercer Island ADU
- Shoreline ADU
- Everett ADU
- Mukilteo ADU
- Lynnwood ADU
- Edmonds ADU
- Mountlake Terrace ADU
- Mill Creek ADU
- Bothell ADU
- Woodinville ADU
- Burien ADU
- SeaTac ADU
- Tukwila ADU
- Des Moines ADU
- Federal Way ADU
- Kent ADU
- Auburn ADU
- University Place ADU
- Lakewood ADU
- DuPont ADU
- Puyallup ADU
- Lacey ADU
- Tumwater ADU
- Olympia ADU
City × Service landing pages (192)
Mercer Island
Mountlake Terrace
Mill Creek
Woodinville
Des Moines
Federal Way
University Place
Neighborhood hubs
Browse all neighborhood hubs (one per city, plus a service variant per neighborhood).
- Seattle neighborhoods
- Bellevue neighborhoods
- Kirkland neighborhoods
- Redmond neighborhoods
- Tacoma neighborhoods
- Sammamish neighborhoods
- Issaquah neighborhoods
- Renton neighborhoods
- Mercer Island neighborhoods
- Shoreline neighborhoods
- Everett neighborhoods
- Mukilteo neighborhoods
- Lynnwood neighborhoods
- Edmonds neighborhoods
- Mountlake Terrace neighborhoods
- Mill Creek neighborhoods
- Bothell neighborhoods
- Woodinville neighborhoods
- Burien neighborhoods
- SeaTac neighborhoods
- Tukwila neighborhoods
- Des Moines neighborhoods
- Federal Way neighborhoods
- Kent neighborhoods
- Auburn neighborhoods
- University Place neighborhoods
- Lakewood neighborhoods
- DuPont neighborhoods
- Puyallup neighborhoods
- Lacey neighborhoods
- Tumwater neighborhoods
- Olympia neighborhoods
Cost data (32 cities × 5 size bands)
Hub: /cost-per-sqft
Seattle
Bellevue
Kirkland
Redmond
Tacoma
Sammamish
Issaquah
Renton
Mercer Island
Shoreline
Everett
Mukilteo
Lynnwood
Edmonds
Mountlake Terrace
Mill Creek
Bothell
Woodinville
Burien
SeaTac
Tukwila
Des Moines
Federal Way
Kent
Auburn
University Place
Lakewood
DuPont
Puyallup
Lacey
Tumwater
ROI projections (32 cities × 4 rent brackets)
Hub: /roi · ROI calculator
Bellevue
Kirkland
Sammamish
Issaquah
Mercer Island
Shoreline
Mukilteo
Lynnwood
Mountlake Terrace
Mill Creek
Woodinville
Des Moines
Federal Way
University Place
Lakewood
Puyallup
Tumwater
Comparisons (32 cities × 6 variants)
Hub: /compare
Seattle
Bellevue
Kirkland
Redmond
Tacoma
Sammamish
Issaquah
Renton
Mercer Island
Shoreline
Everett
Mukilteo
Lynnwood
Edmonds
Mountlake Terrace
Mill Creek
Bothell
Woodinville
Burien
SeaTac
Tukwila
Des Moines
Federal Way
Kent
Auburn
University Place
Lakewood
DuPont
Puyallup
Lacey
Tumwater
Permits by city
- Seattle permits
- Bellevue permits
- Kirkland permits
- Redmond permits
- Tacoma permits
- Sammamish permits
- Issaquah permits
- Renton permits
- Mercer Island permits
- Shoreline permits
- Everett permits
- Mukilteo permits
- Lynnwood permits
- Edmonds permits
- Mountlake Terrace permits
- Mill Creek permits
- Bothell permits
- Woodinville permits
- Burien permits
- SeaTac permits
- Tukwila permits
- Des Moines permits
- Federal Way permits
- Kent permits
- Auburn permits
- University Place permits
- Lakewood permits
- DuPont permits
- Puyallup permits
- Lacey permits
- Tumwater permits
- Olympia permits
Zoning by city
Tool: Zoning lookup
- Seattle zoning
- Bellevue zoning
- Kirkland zoning
- Redmond zoning
- Tacoma zoning
- Sammamish zoning
- Issaquah zoning
- Renton zoning
- Mercer Island zoning
- Shoreline zoning
- Everett zoning
- Mukilteo zoning
- Lynnwood zoning
- Edmonds zoning
- Mountlake Terrace zoning
- Mill Creek zoning
- Bothell zoning
- Woodinville zoning
- Burien zoning
- SeaTac zoning
- Tukwila zoning
- Des Moines zoning
- Federal Way zoning
- Kent zoning
- Auburn zoning
- University Place zoning
- Lakewood zoning
- DuPont zoning
- Puyallup zoning
- Lacey zoning
- Tumwater zoning
- Olympia zoning
Insights & guides (34)
- Tacoma's ADU rules in 2026
- Redmond ADUs and the Microsoft commute calculus
- Heat pump sizing for Puget Sound ADUs
- Seattle's pre-approved DADU plans: real timeline savings
- Short-term rental rules for Seattle ADUs
- Bellevue's ADU pathway in 2026
- How long Seattle ADU permits actually take in 2025
- Washington HB 1337, in plain English
- Kirkland Zoning Code 115 and ADU heights
- How our Seattle ADU costs compare to AARP's national data
- Seattle's ADU code, decoded
- Seattle ADU rental comps in 2025
- Financing an ADU: 203(k), HomeStyle, HELOC, cash-out
- King County septic vs sewer: ADU implications
- IRC Appendix AQ — when 'tiny' is the right answer for an ADU
- When Seattle dropped ADU owner-occupancy — and why it changed the math
- What an ADU does to your property tax in King County
- Bellevue ADU rules — what changed under HB 1337
- AADU vs DADU resale value in Seattle
- Multigenerational ADUs in the Pacific Northwest
- Kirkland ADU rules — the most predictable Eastside permit path
- Passive House for a Puget Sound ADU — does it pencil?
- What an ADU really costs in Seattle in 2025
- Snohomish County DADU options outside Seattle
- Seattle's Pre-Approved DADU plans — when they make sense
- Septic or sewer? What it means for your ADU
- DADU or AADU? How to choose for your lot
- Long-term vs. short-term rental ADU in Seattle
- The 2021 Washington Energy Code, applied to ADUs
- Designing an aging-in-place ADU
- Detailing an ADU for Pacific Northwest rain
- Building an ADU for aging parents
- Real ADU permit timelines across the Puget Sound
- Materials that age well in the Pacific Northwest
City FAQs (32)
- Seattle ADU FAQ
- Bellevue ADU FAQ
- Kirkland ADU FAQ
- Redmond ADU FAQ
- Tacoma ADU FAQ
- Sammamish ADU FAQ
- Issaquah ADU FAQ
- Renton ADU FAQ
- Mercer Island ADU FAQ
- Shoreline ADU FAQ
- Everett ADU FAQ
- Mukilteo ADU FAQ
- Lynnwood ADU FAQ
- Edmonds ADU FAQ
- Mountlake Terrace ADU FAQ
- Mill Creek ADU FAQ
- Bothell ADU FAQ
- Woodinville ADU FAQ
- Burien ADU FAQ
- SeaTac ADU FAQ
- Tukwila ADU FAQ
- Des Moines ADU FAQ
- Federal Way ADU FAQ
- Kent ADU FAQ
- Auburn ADU FAQ
- University Place ADU FAQ
- Lakewood ADU FAQ
- DuPont ADU FAQ
- Puyallup ADU FAQ
- Lacey ADU FAQ
- Tumwater ADU FAQ
- Olympia ADU FAQ
Financing by city (32)
- Seattle ADU financing
- Bellevue ADU financing
- Kirkland ADU financing
- Redmond ADU financing
- Tacoma ADU financing
- Sammamish ADU financing
- Issaquah ADU financing
- Renton ADU financing
- Mercer Island ADU financing
- Shoreline ADU financing
- Everett ADU financing
- Mukilteo ADU financing
- Lynnwood ADU financing
- Edmonds ADU financing
- Mountlake Terrace ADU financing
- Mill Creek ADU financing
- Bothell ADU financing
- Woodinville ADU financing
- Burien ADU financing
- SeaTac ADU financing
- Tukwila ADU financing
- Des Moines ADU financing
- Federal Way ADU financing
- Kent ADU financing
- Auburn ADU financing
- University Place ADU financing
- Lakewood ADU financing
- DuPont ADU financing
- Puyallup ADU financing
- Lacey ADU financing
- Tumwater ADU financing
- Olympia ADU financing
How-to guides by city (32)
- How to build an ADU in Seattle
- How to build an ADU in Bellevue
- How to build an ADU in Kirkland
- How to build an ADU in Redmond
- How to build an ADU in Tacoma
- How to build an ADU in Sammamish
- How to build an ADU in Issaquah
- How to build an ADU in Renton
- How to build an ADU in Mercer Island
- How to build an ADU in Shoreline
- How to build an ADU in Everett
- How to build an ADU in Mukilteo
- How to build an ADU in Lynnwood
- How to build an ADU in Edmonds
- How to build an ADU in Mountlake Terrace
- How to build an ADU in Mill Creek
- How to build an ADU in Bothell
- How to build an ADU in Woodinville
- How to build an ADU in Burien
- How to build an ADU in SeaTac
- How to build an ADU in Tukwila
- How to build an ADU in Des Moines
- How to build an ADU in Federal Way
- How to build an ADU in Kent
- How to build an ADU in Auburn
- How to build an ADU in University Place
- How to build an ADU in Lakewood
- How to build an ADU in DuPont
- How to build an ADU in Puyallup
- How to build an ADU in Lacey
- How to build an ADU in Tumwater
- How to build an ADU in Olympia
ADU tax guides by city (32)
- Seattle ADU tax & assessment guide
- Bellevue ADU tax & assessment guide
- Kirkland ADU tax & assessment guide
- Redmond ADU tax & assessment guide
- Tacoma ADU tax & assessment guide
- Sammamish ADU tax & assessment guide
- Issaquah ADU tax & assessment guide
- Renton ADU tax & assessment guide
- Mercer Island ADU tax & assessment guide
- Shoreline ADU tax & assessment guide
- Everett ADU tax & assessment guide
- Mukilteo ADU tax & assessment guide
- Lynnwood ADU tax & assessment guide
- Edmonds ADU tax & assessment guide
- Mountlake Terrace ADU tax & assessment guide
- Mill Creek ADU tax & assessment guide
- Bothell ADU tax & assessment guide
- Woodinville ADU tax & assessment guide
- Burien ADU tax & assessment guide
- SeaTac ADU tax & assessment guide
- Tukwila ADU tax & assessment guide
- Des Moines ADU tax & assessment guide
- Federal Way ADU tax & assessment guide
- Kent ADU tax & assessment guide
- Auburn ADU tax & assessment guide
- University Place ADU tax & assessment guide
- Lakewood ADU tax & assessment guide
- DuPont ADU tax & assessment guide
- Puyallup ADU tax & assessment guide
- Lacey ADU tax & assessment guide
- Tumwater ADU tax & assessment guide
- Olympia ADU tax & assessment guide
Glossary (35 terms)
Index: All glossary terms
- ADU (Accessory Dwelling Unit)
- DADU (Detached Accessory Dwelling Unit)
- AADU (Attached Accessory Dwelling Unit)
- JADU (Junior ADU)
- HB 1337
- SDCI
- Pre-Approved DADU Plans
- ECA (Environmentally Critical Area)
- Side Sewer
- King County Capacity Charge
- Setback
- FAR (Floor Area Ratio)
- Lot Coverage
- Impervious Surface
- Feasibility Study
- Design Review
- Washington State Energy Code (WSEC)
- Heat Pump
- Egress
- IRC Appendix Q (Tiny Houses)
- RRIO (Rental Registration & Inspection Ordinance)
- STR (Short-Term Rental)
- Appraisal Lift
- Renovation Loan
- Owner-Occupancy Requirement
- Value Engineering (VE)
- Lien Waiver
- Punch List
- Substantial Completion
- Blower Door Test
- Manufactured Home
- Modular / Prefab ADU
- Driveway Approach Permit
- Geotechnical Report
- Right-of-Way (ROW)
Project case studies (12)
- Ballard Monolith — Seattle
- Bellevue Wing — Bellevue
- Kirkland Garage Studio — Kirkland
- Tacoma Two-Story — Tacoma
- Mercer Island Interior — Mercer Island
- Redmond Pitch — Redmond
- Shoreline Modern Cottage — Shoreline
- Edmonds Craftsman Conversion — Edmonds
- Issaquah Hillside DADU — Issaquah
- Renton Rambler Addition — Renton
- Bothell Courtyard AADU — Bothell
- Sammamish Modern Farmhouse ADU — Sammamish