GENERAL CONTRACTING
When your project doesn't fit a clean ADU bucket, we run the whole program — design coordination, scheduling, trades, inspections, and budget management. One contract, one supervisor, one final number.
Deliverables
SPEC_05.A- 01Pre-construction estimating
- 02Design coordination
- 03Trade procurement + scheduling
- 04Weekly progress reporting
- 05Quality + safety supervision
- 06Final close-out package
DETACHED ADU
Stand-alone backyard cottages built from the ground up — engineered for rental income, multi-generational living, or your home office.
02 //ATTACHED ADU
Seamlessly integrated additions — basement, ground-floor, or wing conversions that maintain the architectural integrity of your existing home.
03 //GARAGE CONV.
Convert an under-used garage into a high-end studio, office, or rental quarter without surrendering your driveway.
ARCHIVE_02 / Field Reports
Recent GC projects

REF_4492 · Oct 2023
Ballard Monolith
Seattle, WA · 1,000 sqft
A 1,000 sqft DADU featuring vertical cedar cladding and floor-to-ceiling industrial glazing.

REF_4376 · Aug 2023
Bellevue Wing
Bellevue, WA · 720 sqft
Side-yard expansion of a craftsman home — independent entry, full kitchen, separate utilities.

REF_4218 · Mar 2024
Kirkland Garage Studio
Kirkland, WA · 480 sqft
Two-car garage transformed into a high-end work-from-home studio with skylight.
GC questions
SPEC_05.FAQReal questions from Seattle, Bellevue, Kirkland and Eastside owners evaluating a general contracting project. Code references are current as of 2025 — confirm with us during feasibility.
Q.01
Are you a licensed general contractor in Washington State?
Yes. Golden State ADU Builders holds Washington L&I contractor license GOLDESA747LZ, carries general liability and workers' comp, and is bonded per RCW 18.27. We can provide a current Certificate of Insurance naming you as additional insured before contract.
Q.02
How do you price projects — fixed-price or cost-plus?
We default to fixed-price contracts after a paid pre-construction phase. Cost-plus is offered only for highly speculative scopes (historic restoration, unknown conditions). Fixed price means your number doesn't move unless you change scope.
Q.03
Do you self-perform work or hire subs for everything?
Our in-house crew handles framing, finish carpentry, and project supervision. MEP, drywall, and specialty trades are vetted long-term partners we've worked with for years. You always have one Golden project manager as your single point of contact.
Q.04
Can you handle SDCI permit submittals for a remodel?
Yes — we file building, mechanical, electrical, plumbing, and side-sewer permits with SDCI on every project. We manage all inspector interactions and revisions through closeout, so you never have to chase a permit number.
Q.05
What warranty do you provide on general contracting work?
Every project includes a 1-year workmanship warranty on labor and finishes, plus a 10-year structural warranty on framing, foundations, and weather envelope. Manufacturer warranties on specified products (windows, roofing, mechanical) pass through to the homeowner.
Q.06
Do you take on whole-home remodels in Bellevue, Kirkland and the Eastside?
Yes. Roughly a third of our active projects are on the Eastside. We know the Bellevue Development Services and Kirkland Building Division processes well, including the digital permit portal and stricter tree-preservation requirements that apply east of Lake Washington.
Official resources & sources
- Source ↗WSEC 2021 Residential Energy CodeEnvelope, HVAC, hot-water and air-sealing requirements
- Source ↗WA HB 1110 — Middle housing lawStatewide middle-housing zoning preemption
- Source ↗WA HB 1337 — ADU statewide rulesTwo-ADU baseline, no owner occupancy, parking limits
- Source ↗WA Dept. of Commerce — ADU resources
- Source ↗WA L&I contractor license lookupVerify Golden State ADU Builders Inc · GOLDESA747LZ
- Source ↗Washington State Building Code CouncilStatewide adopted codes (IRC, IBC, WSEC)
GENERAL CONTRACTING builder in every Puget Sound city
In-depth guides on general contracting
- kitchen · 8 minSeattle kitchen remodel cost 2026: real numbers by scope
- bathroom · 7 minSeattle bathroom remodel cost 2026 by scope and size
- roofing · 8 minRoofing for Pacific Northwest rain: materials, details, lifespan
- process · 7 minFixed-price vs time-and-materials: which contract to sign
- process · 7 minSeattle electrical panel upgrade for ADUs: 100A to 400A (2026)
- decks · 7 minEastside deck cost & permits: cedar, IPE, composite (2026)
- concrete · 7 minCold-weather concrete pours in the Puget Sound (2026 field guide)
- process · 8 minADU rental management in the Puget Sound (2026)
Frequently asked
What is included in GENERAL CONTRACTING?
Our GENERAL CONTRACTING scope includes design through completion: feasibility, schematic design, construction documents, permit submittal and review management, construction with one self-performed framing crew plus L&I-licensed MEP subcontractors, all required WA inspections, certificate of occupancy, and warranty. One contract, one license number, one warranty — not a coordination headache across five vendors.
How is GENERAL CONTRACTING different from a generic remodel?
GENERAL CONTRACTING carries code, permit, and construction details that a one-off remodeler hasn't repeated enough times to optimize. Examples: IECC R406 envelope path selection, fire separation when units are within 5 ft, side-sewer slope requirements, IRC Appendix AQ when permitted as a tiny house, separate utility metering rules. We do this scope every month — repetition is what makes our first-cycle approval rate and our schedule reliability stand out.
What is the typical price range for GENERAL CONTRACTING?
GENERAL CONTRACTING pricing in 2026 lands $330–$380/sqft all-in depending on size, lot conditions, finish tier, and AHJ. The wide range is real — small lots with difficult access, soils requiring pier-and-beam, or service upgrades push the upper end; flat lots with good access and a catalog plan land at the lower end. Our feasibility report gives you a ±15% number tailored to your specific lot in two weeks.
What permits does GENERAL CONTRACTING require?
Standard GENERAL CONTRACTING permit stack: building permit (covers structural, mechanical, plumbing under combined review), side-sewer permit, water meter capacity check, electrical permit, drainage review where applicable, addressing application. Critical-areas review triggers on lots mapped for steep slope, wetland, riparian, or landslide hazard. We pull all permits as a pass-through line in our contract — not marked up.
Go deeper: Read the King County side sewer permits for ADUs: cost & timeline (2026) guide
How long does GENERAL CONTRACTING take from contract to completion?
9–14 months end-to-end is typical for GENERAL CONTRACTING: 6–8 weeks design, 8–16 weeks permit, 18–26 weeks construction. Faster on catalog plans with pre-app meetings. Schedule variance is driven by AHJ workload, owner selection pace, and any field-discovered conditions. We publish a Gantt at contract and update it weekly.
Go deeper: Read the Eastside deck cost & permits: cedar, IPE, composite (2026) guide
What's the warranty on GENERAL CONTRACTING?
One year workmanship, two years mechanical (HVAC, plumbing rough, electrical rough), 10 years structural per RCW 4.16.310. Manufacturer warranties pass through directly: LP SmartSide siding 50-year, GAF Timberline HDZ shingles, Marvin window 20-year, Bosch/GE appliances 1-year. Documented in a written warranty packet at closeout.
Do you self-perform GENERAL CONTRACTING work or subcontract everything?
We self-perform framing, exterior weather barrier, interior trim, and project supervision with W-2 carpenters. MEP trades (plumbing, electrical, HVAC) are subcontracted to L&I-licensed specialty contractors we've worked with 5+ years — WA requires separate PL, EL, HVAC/R licenses that a GC cannot legally self-perform without them.
What's the change-order policy on GENERAL CONTRACTING?
Every change order is written, priced, and signed before work proceeds. We never charge T&M without a not-to-exceed. Owner-initiated changes carry 15% OH&P; field-discovered conditions (rotted sheathing, undocumented buried oil tank, unmapped sewer) are priced at cost +10% with photo documentation. Average GENERAL CONTRACTING project sees 4–7 change orders totaling 3–6% of contract value.
What financing works for GENERAL CONTRACTING?
HELOC (fastest, 8.0–9.5% APR), renovation loan (Fannie HomeStyle / Freddie CHOICERenovation, 7.1–7.9%), construction-to-perm (best for ground-up), or cash-out refi (only if existing rate above market). WSHFC's ADU pilot at ~3.5–4.25% applies to ADU-scoped GENERAL CONTRACTING projects for income-qualified owners.
Do you provide references for GENERAL CONTRACTING work?
Yes — we provide 5+ GENERAL CONTRACTING references on request: past clients in your target city, your target neighborhood when possible, and at your target scope. References include name, phone, project address, and a one-paragraph project summary. We refresh the reference list quarterly so the contacts are recent and reachable.