On January 1, 2026, Seattle raised construction and master use permit fees by 18% year over year — the plan review and permit fee on a 1,500 sq ft single-family house went from $5,759 to $6,853 in one budget cycle, and SDCI’s base hourly review rate rose to $292, according to the city’s own 2026 Fee Changes summary. That single line item is a useful warning about this market: in Seattle, the cost of a renovation is shaped as much by regulation, tax and the age of the housing stock as by the tile you pick.
This guide breaks a whole-home renovation into the actual line items a Seattle general contractor prices, shows what percentage of the budget each one consumes, and adds the costs that almost never appear in a contractor’s bid — but always appear in your bank account.
How Much Does It Cost To Fully Renovate A House In Seattle In 2026?
A realistic all-in planning range for the Greater Seattle Area in 2026:
| Scope | Construction contract (2,200 sq ft home) | Per sq ft |
| Cosmetic refresh — paint, flooring, fixtures, light kitchen/bath updates, no walls moved | $180,000 – $330,000 | $80 – $150 |
| Mid-range full renovation — new kitchen, 2–3 baths, flooring, partial systems, some layout change | $350,000 – $600,000 | $160 – $275 |
| Full gut to the studs — all systems replaced, structural work, envelope, new layout | $650,000 – $1,100,000+ | $300 – $500+ |
For context, Seattle architecеt Harrison Architects budgets whole-house renovations and new custom houses starting at $500 per square foot in Seattle, Bellevue, Kirkland and unincorporated King County — counting every square foot, including unfinished basement and garage.
Nationally, the picture is far smaller: the 2026 U.S. Houzz & Home Study puts the median renovation spend at $20,000 and the 90th percentile at $150,000. Seattle whole-home projects live well above that top decile, which is exactly why national calculators mislead people here.
Note that the table above is the construction contract — not your total outlay. The gap between the two is covered further down, and it is usually 30–60%.
Remodel Cost: How Much Per Square Foot In Seattle?
Per-square-foot pricing is a planning tool, not a quote. Three things break it:
- Small homes cost more per foot. A kitchen and two bathrooms cost roughly the same in a 1,400 sq ft bungalow as in a 3,000 sq ft house, but the cost is spread over half the area. Expect a 20–35% higher per-foot number on homes under 1,600 sq ft.
- Unfinished square footage skews the math. A quoted “$220/sq ft” that includes an untouched basement is not comparable to $220/sq ft of finished, renovated space.
- Depth of scope, not finish level, is the main driver. Opening walls is the expensive decision. Choosing quartz over laminate is a rounding error next to moving a bearing wall or repiping a house.
The honest use of per-square-foot figures: use them to sanity-check a bid, then price the actual scope line by line.
The Line-Item Breakdown: Where Every Dollar Actually Goes
Below is how a $500,000 construction contract typically distributes across a mid-range whole-home renovation of a 2,200 sq ft Seattle house — roughly $227 per square foot before tax and soft costs.
| Line item | % of contract | Dollars |
| Demolition, site protection, disposal | 4% | $20,000 |
| Foundation, structural repairs, seismic retrofit | 7% | $35,000 |
| Roof, siding, windows, exterior doors | 9% | $45,000 |
| Plumbing — repipe, rough-in, fixtures | 6% | $30,000 |
| Electrical — rewire, 200A panel, lighting | 6% | $30,000 |
| HVAC — heat pump, ductwork, ventilation | 4% | $20,000 |
| Insulation, air sealing, drywall | 5% | $25,000 |
| Kitchen — cabinetry, countertops, tile, appliance install | 10% | $50,000 |
| Bathrooms (2–3) | 8% | $40,000 |
| Flooring | 4% | $20,000 |
| Interior doors, trim, millwork, paint | 5% | $25,000 |
| Custom cabinetry and built-ins outside the kitchen | 2% | $10,000 |
| General conditions — supervision, temp power and heat, dumpsters, safety, cleanup | 8% | $40,000 |
| Design coordination, engineering input, permit administration | 4% | $20,000 |
| Contractor overhead and profit | 18% | $90,000 |
| Total construction contract | 100% | $500,000 |
Показано 1-10 из 17‹12›
Two lines deserve attention because they are where bids diverge most.
General conditions (8%). Supervision, temporary utilities, waste hauling, weather protection. A bid that omits general conditions is not cheaper — it has simply moved that money into change orders.
Overhead and profit (18%). In the Seattle market, a licensed, bonded and insured general contractor carrying L&I coverage, warranty obligations and full-time project management prices in the 15–25% band. A bid at 8% is a signal, not a bargain.
What Drives The Cost Of Whole House Remodel Projects In Seattle
Five Seattle-specific factors that national cost guides do not model:
- Sales tax applies to the entire contract. Washington treats residential construction as a retail sale. Per the Washington Department of Revenue construction industry guide, the taxable amount includes “charges for permits and other fees, labor, profit, materials and charges for subcontractors.” Seattle’s combined rate rose to 10.55% on January 1, 2026. On a $500,000 contract that is $52,750 — more than most homeowners budget for their entire kitchen.
- Permit fees climbed 18% this year. See the SDCI figures above. Whole-home projects frequently trigger building, mechanical, plumbing, electrical and side-sewer permits, plus hourly drainage, geotechnical or environmentally critical area review at $292/hour.
- The housing stock is old enough to hide expensive surprises. Construction Coverage’s 2026 study of American cities with the oldest homes puts the Seattle metro median home age at 37 years, with 43.3% of homes built before 1980 and 9.7% before 1940. Behind those walls: knob-and-tube wiring, ungrounded circuits, undersized panels, galvanized supply lines, unreinforced foundations, and asbestos in flooring, mastic, popcorn ceilings and pipe insulation.
- An asbestos survey is mandatory before you open a wall. Not optional and not a formality. Seattle Public Utilities is explicit that an asbestos survey must be performed prior to any renovation or demolition work, following Puget Sound Clean Air Agency requirements. Survey and testing typically runs $500–$1,500; abatement in a pre-1980 house commonly adds $3,000–$15,000.
- Energy code and electrification. Washington’s energy code drives high insulation values, heat-pump mechanical systems and heat-recovery ventilation. Combined with induction cooking and EV charging, most pre-1990 Seattle homes need a 200-amp service upgrade — $4,000–$9,000 before a single fixture is hung.
Soft Costs And Owner-Supplied Items Most Bids Exclude
This is the section that separates a $500,000 project from a $750,000 reality. Using the same $500,000 contract:
| Cost outside the construction contract | Typical Seattle range |
| Washington/Seattle retail sales tax at 10.55% | $52,750 |
| Architect or designer (8–15% of construction on architect-led work) | $25,000 – $75,000 |
| Structural engineer, survey, geotech (if ECA or steep slope) | $4,000 – $20,000 |
| Asbestos and lead survey plus abatement | $3,500 – $16,500 |
| Appliances, window coverings, furniture | $15,000 – $60,000 |
| Landscaping and hardscape restoration | $8,000 – $40,000 |
| Temporary housing and storage, 6–9 months | $20,000 – $45,000 |
| Contingency at 10–20% of contract | $50,000 – $100,000 |
| All-in total on a $500,000 contract | $680,000 – $810,000 |
That is $309–$368 per square foot all-in on a 2,200 sq ft home — against a construction contract that reads $227.
The contingency line is not pessimism. The 2026 Houzz & Home Study found 37% of renovating homeowners exceeded their planned spend in 2025, versus 35% who hit budget and 3% who came in under. On a full gut of a pre-1980 Seattle house, 10% contingency is the floor and 20% is prudent.
“The number that gets a project into trouble is never the kitchen — it’s the one nobody wrote down. Sales tax on the full contract, the six months of rent while you’re out of the house, the panel upgrade the heat pump forces. We put all of it on paper at the estimate stage, even the lines that aren’t ours to invoice, because a client who knows the real total makes better decisions in month three than one who’s been surprised twice.” — Ihor Maksymov, CEO and founder, Maksymov Brownstone LLC
How Much Does It Cost To Rebuild A House Instead Of Renovating?
For homes with failing foundations, compromised framing or a layout that cannot be salvaged, tearing down and rebuilding is a legitimate alternative.
| Whole-home gut renovation | Demolish and rebuild | |
| Construction cost per sq ft | $300 – $500+ | $300 – $500 typical; $450 – $750+ for architect-led custom |
| Demolition and disposal | Included in scope | $20,000 – $45,000 additional |
| Permitting | Building permit; MUP sometimes | Full MUP, demolition permit, new utility connections |
| Timeline | 10 – 18 months including design and permits | 16 – 26 months |
| Keeps existing footprint and setbacks | Yes — often larger than current zoning would allow | No — new build must meet current FAR and setbacks |
| Sales tax at 10.55% | Applies | Applies |
The footprint point matters more than most homeowners realize. Many older Seattle houses sit on lots where current zoning would not permit the same building envelope today. Renovating preserves that non-conforming footprint; demolishing forfeits it. Block Renovation puts Seattle custom construction at $300–$500 per square foot, with waterfront and view lots regularly exceeding $800.
The other constraint is the market ceiling. King County’s median home price was $889,000 in June 2026 per Northwest MLS reporting. A $1.4M all-in rebuild in a neighborhood with $950K comps is a lifestyle decision, not an investment one — and that is a legitimate choice, provided it is made knowingly.
Which Seattle Homeowner Are You? Budget Priorities By Situation
The long-term owner (10+ years, significant equity). Your money belongs in systems, envelope and layout — the things that are ruinously expensive to revisit. Finishes can be phased. Prioritize the roof, windows, insulation, electrical and plumbing in phase one.
The recent buyer of a dated house. You have a discovery problem, not a design problem. Budget a full pre-construction investigation — asbestos survey, sewer scope, panel and wiring assessment, moisture and structural inspection — before locking a scope. Money spent here reliably prevents change orders later.
The resale-focused owner or investor. The 2025 Zonda Cost vs. Value Report ranks the Pacific region first in the country for remodeling ROI, but the spread inside that average is enormous: exterior replacements and minor kitchen remodels return the most, while major upscale kitchens recoup a fraction of their cost. A full gut is rarely the right resale play. Targeted scope is.
The condo or townhome owner. HOA rules, building hours, elevator scheduling and shared-wall plumbing constraints add real cost and time. Our Kirkland full condo renovation shows what that scope looks like in practice.
| Phase | Duration |
| Design and documentation | 2 – 4 months |
| SDCI permitting | 6 – 16 weeks (longer with ECA, drainage or land use review) |
| Demolition and discovery | 3 – 5 weeks |
| Structural, rough MEP, envelope | 3 – 4 months |
| Insulation, drywall, finishes | 3 – 4 months |
| Punch list, inspections, closeout | 3 – 5 weeks |
| Total | 10 – 18 months |
For calibration on a smaller but permit-heavy scope: our Ballard master suite addition — an attic conversion including architectural drawings, City of Seattle permit applications, interior design and full construction — was delivered in 6 months. A whole-home renovation touching every system and every room is a materially longer commitment, and any contractor promising a gut renovation in four months is describing a cosmetic refresh.
FAQ
How Much Money To Renovate A House Should I Have Before Starting?
Have the full construction contract plus sales tax plus contingency either in cash or in a committed facility — approximately 1.35× the contract value — before demolition begins. Starting a whole-home project with only the contract value funded is the single most common cause of stalled Seattle renovations.
How Much Does Renovation Cost Per Room In Seattle?
Typical 2026 Seattle ranges within a whole-home scope: kitchen $45,000–$160,000; primary bathroom $50,000–$95,000; secondary bathroom $22,000–$48,000; powder room $5,500–$12,000; bedroom or living space with new flooring, wiring and paint $8,000–$20,000. Rooms priced inside a whole-home contract are cheaper per room than the same room done standalone, because mobilization, permitting and general conditions are shared.
How Much Does It Cost To Renovate A House That Was Built Before 1940?
Budget a 15–30% premium over the equivalent post-1980 house. Nearly one in ten Seattle-area homes predates 1940, and those houses commonly need asbestos abatement, complete rewiring, plumbing replacement, foundation and seismic work, and window replacement that satisfies both the energy code and any applicable historic or design review.
Does A Whole-Home Renovation Increase Property Taxes?
Permitted improvements are reported to the King County Assessor and can increase assessed value. This is not a reason to avoid permits — unpermitted work creates far larger problems at sale, at insurance claim time, and during any future permit application on the property.
Is A Fixed-Price Or Cost-Plus Contract Better In Seattle?
Fixed price transfers risk to the contractor and is priced accordingly; cost-plus with a guaranteed maximum price tends to be more efficient on gut renovations where discovery is unavoidable. Whichever structure you choose, read the exclusions and allowances — those two sections explain most of the difference between two bids on identical plans.