Planning a million dollar remodel in Seattle and on the Eastside

Short answer: a million dollar remodel goes well when the budget is split in the right order. Pay for the structure, the envelope and the systems first, then decide how much is left for finishes, and size the scope to the house before anyone draws a new kitchen. At the whole house planning range of $300 to $550 per square foot, $1,000,000 renovates roughly 1,818 to 3,333 square feet, so the real question is where on that range your house sits. The existing house and the code triggers your scope sets off answer most of that.

Piper Cole designs and administers construction; it does not build. I have worked as an architect since 1996 and take on 20 to 30 projects a year, and remodels at $750,000 and up are the work I most want to do. Cost figures below are this site’s planning ranges; only a builder’s bid on finished drawings is a price. Code references are from the 2021 Seattle Residential Code and the Seattle Municipal Code as of September 2026; Eastside cities run their own building departments, so confirm with your city.

What the money buys per square foot

The planning range I use for a whole house renovation in Seattle and on the Eastside is $300 to $550 per square foot. Additions run higher, $350 to $650 per square foot, because they need new foundations, new roof and new envelope. Treat both as construction cost before design fees, permits, sales tax and contingency.

Run the range both ways. Divide your construction budget by $550 and you get the floor area a top-of-range renovation covers. Divide by $300 and you get the area at the bottom of the range.

Construction budget	At $550 per sq ft (top)	At $300 per sq ft (bottom)
$750,000	about 1,364 sq ft	2,500 sq ft
$1,000,000	about 1,818 sq ft	about 3,333 sq ft
$1,500,000	about 2,727 sq ft	5,000 sq ft
$2,000,000	about 3,636 sq ft	about 6,667 sq ft

Or start from the house. A 3,000 square foot house renovated end to end lands between $900,000 (3,000 × $300) and $1,650,000 (3,000 × $550). That spread is the reason I do not trust a single per-foot number for this kind of project.

What moves a house toward the top of the range is rarely the tile. It is the age and condition of the structure, how much of the floor plan changes, whether the foundation, roof and windows are replaced, whether the mechanical, plumbing and electrical systems are new throughout, and how hard the site is to work on. Two houses with the same finish level can land at opposite ends of the range for those reasons alone. For Bellevue specifically, see the whole house remodel cost guide.

Where the money goes first

On a seven-figure remodel I set the budget in layers, from the ground up, and only release money to the next layer once the one below it is known.

• Structure and foundation. Settled or undersized footings, missing shear walls (braced walls that resist earthquake and wind loads), notched joists from old remodels, beams that have to change when walls move. You find these with opening-up work and an engineer, before the design is fixed.
• Envelope. Roof, windows, siding, insulation, moisture control. Once walls are open, this is the cheapest time it will ever be to do it properly.
• Systems. Heating and cooling, ventilation, electrical service and panel, plumbing supply and drains, sewer line. New finishes over old systems is a poor trade.
• Layout. Moving the kitchen, stairs or bathrooms costs far more than refinishing them where they are, because plumbing, venting and structure move with them.
• Finishes and fixtures. Cabinetry, stone, flooring, lighting, appliances, hardware. This is the layer people picture, and the one that can flex at the end.

The order matters because the bottom layers are the ones you cannot see later and cannot redo cheaply. If the budget is tight, I would rather defer a finish upgrade by a year than leave a 60 year old drain line under a new floor.

Code upgrades a big remodel triggers

The basic rule in the Seattle Residential Code (R107.4) is that additions and alterations must meet the code for new work, except where its existing buildings chapter (Chapter 44) relaxes a rule, and must not leave the existing house less compliant than it was. The rest of the house generally keeps its existing condition. That changes as the scope grows.

• Smoke alarms. Where alterations, repairs or additions requiring a permit occur, the house has to be equipped with smoke alarms as required for new dwellings (R314.2.2). Exterior-only work such as roofing, siding and windows is exempt.
• Substantial alterations. Seattle’s code (R107.5.1) lets the building official treat a project as a substantial alteration when the remodeling or additions “substantially extend the useful physical and/or economic life of the building or a significant portion of the building.” A house classed that way must meet the current rules for emergency escape openings, means of egress (the exit path out of the house), smoke alarms, carbon monoxide alarms and dwelling unit separation.
• Seismic work. A substantial alteration also brings the seismic provisions for foundations and wall bracing into play (R107.5.1.2). The building official may approve strengthening parts of the lateral system (the structure that resists sideways earthquake and wind forces) instead, such as foundations and cripple walls (short framed walls between the foundation and the first floor), and the code notes that Seattle’s Earthquake Home Retrofit plans may be used for that. More on retrofits in this guide.
• Flood areas. In a flood hazard area, work valued at 50 percent or more of the building’s market value is a substantial improvement and must comply with the flood provisions (R105.7.3). Seattle’s interpretation counts all improvements over a five-year period, so splitting the work into phases does not reset the count.

None of this is bad news if it is in the budget from day one. It is bad news when it shows up at plan review after the finish allowances are spent. That is the real trap in a big remodel, and it is why the code classification is worth checking during feasibility. The wider keep-or-replace question is on the remodel or tear down page.

Gut renovation or rebuild

At this budget the honest comparison is a gut renovation against a new house. The site’s planning ranges overlap: whole house renovation at $300 to $550 per square foot, new custom home construction at $400 to $900, plus demolition at typically $20,000 to $50,000.

3,000 sq ft house	Gut renovation	Tear down and rebuild
Construction, planning range	$900,000 to $1,650,000	$1,200,000 to $2,700,000
Demolition	Selective demolition, priced in the builder’s bid	Typically $20,000 to $50,000 more
Seattle permit time	About 2 to 3 months	About 6 to 10 months
What you keep	The existing structure and footprint, including any nonconforming setbacks	A new house to the current building code; in Seattle a nonconforming footprint can often be rebuilt (see below)

The arithmetic: 3,000 × $300 = $900,000 and 3,000 × $550 = $1,650,000 for the renovation; 3,000 × $400 = $1,200,000 and 3,000 × $900 = $2,700,000 for new construction. A top-of-range renovation can cost more than a bottom-of-range new house, and when the renovation is replacing the foundation, the framing and every system, it is worth pricing both.

One Seattle rule matters for that comparison. A house that does not meet today’s setbacks may be renovated, repaired or structurally altered, but not expanded in a way that increases the nonconformity (SMC 23.42.112.A). A nonconforming residential structure may also be rebuilt or replaced to the same extent, with a survey documenting the nonconformity, provided action toward replacement starts within 12 months of demolition (SMC 23.42.112.B and D). Check this for your lot before you assume a rebuild loses the footprint.

Sequence and timeline

Step	Typical time	What you get
First feasibility check	About a day, free	Whether the project fits the lot, the code and the budget at a basic level
In-depth feasibility	2 to 3 weeks, $1,500	A deeper look at zoning, code and budget before full design
Design to permit submission	2 to 4 months	Drawings, engineering and the permit set
Remodel permit in Seattle	About 2 to 3 months	An issued permit; Eastside cities set their own review times
Bidding and construction	Set by scope and builder	Leveled bids, a contract and the build

Adding those steps together gives a derived estimate, my own arithmetic rather than a city figure: 2 to 3 weeks of feasibility, plus 2 to 4 months of design, plus about 2 to 3 months of review comes to roughly 5 to 8 months between the first call and an issued permit for a Seattle remodel. Bidding can run while the permit is in review, so a builder is ready when it issues. Construction length depends on the scope, and the schedule in the winning bid is the one to hold the builder to.

Design fees and the feasibility step

I quote a fixed fee for design and permit, set by the project budget and the location. It is typically about $10,000 to $200,000 depending on scope. A fixed number means you know the design cost for the agreed scope before you commit to drawings.

Ask any architect what sits inside the fee and what sits outside it. A large remodel usually needs some mix of a surveyor, a structural engineer, sometimes a geotechnical engineer or an arborist, and the city’s own permit fees. Knowing which of those are in your number keeps the design budget honest.

The cheapest money in the whole project is the feasibility work. A first check is free and usually takes about a day. The in-depth version, $1,500 over 2 to 3 weeks, goes deeper on zoning, code and budget before anyone pays for full drawings. More on how I approach these projects is on the whole house remodel page.

Contingency, allowances and change orders

Three line items decide whether a remodel finishes on budget.

Contingency is money you set aside, outside the contract, for what nobody can see until the walls are open: rot, old wiring, framing that does not match the drawings. Older houses and deeper scopes need more of it. I would rather set it after opening-up work and an engineer’s visit than pick a number in the first meeting.

Allowances are placeholders in a builder’s bid for things not yet chosen, such as tile, plumbing fixtures or lighting. A low allowance makes a bid look cheaper and moves the cost to later. The more selections you make before bidding, the fewer allowances there are and the more meaningful the bid becomes.

Change orders are priced changes to the contract after it is signed. Some come from hidden conditions; most come from decisions made late. Complete drawings and early selections are the best protection. How allowances and change orders show up in a real bid is covered in the build estimate guide.

Leveling builder bids

Bids on a seven-figure remodel can sit far apart and still describe the same house, because builders price risk, allowances and exclusions differently. Leveling means putting them on the same footing before comparing totals.

• Same documents. Every builder bids the same drawing set and specification, with the same addenda.
• Same allowances. Where an allowance is unavoidable, give every bidder the same dollar figure for it.
• Exclusions in writing. List what each bid leaves out, then price those items so the totals compare.
• Sales tax. In Washington, prime contractors must collect retail sales tax from the landowner on the gross contract price, and the Department of Revenue presumes a quoted price does not include it unless it is itemized. Check that every bid treats tax the same way.
• Schedule and staffing. Who runs the site day to day, and how long the builder says it will take.

The lowest leveled number is not always the right builder. How to judge the people behind the bids is in how to choose a general contractor. If part of the budget is borrowed, the construction loan guide explains how draws work.

Living at home or moving out

Staying in the house depends on what is being opened up. A remodel that replaces systems throughout, moves stairs or opens most of the walls usually leaves no working kitchen, bathroom or quiet room for months, and an empty house is simpler and safer to work in. A phased project that keeps one wing livable can work, but the phasing has to be designed in from the start and priced by the builder.

Either way, put the cost of renting, storage and moving into the project budget from day one. It is real money, and it is easier to plan than to find later. The detail is in remodeling while living at home.

Questions

How much house does a $1 million remodel cover in Seattle?

At the planning range of $300 to $550 per square foot for a whole house renovation, $1,000,000 of construction covers roughly 1,818 square feet at the top of the range and about 3,333 square feet at the bottom. Where a house lands depends on structure, systems, layout changes and site access more than on finishes. These are planning ranges and exclude design fees, permits, sales tax and contingency.

What does a high end remodel cost per square foot in Seattle and on the Eastside?

Piper Cole Architects uses $300 to $550 per square foot as the planning range for a whole house renovation and $350 to $650 per square foot for additions. Those are construction figures. A remodel that replaces the foundation, framing and every system tends toward the top; one that keeps the layout and structure tends toward the bottom. A builder’s bid on complete drawings is the real number.

Is it cheaper to gut renovate or rebuild a house?

Not always either way. Using planning ranges, a 3,000 square foot gut renovation runs $900,000 to $1,650,000 and a new house of the same size $1,200,000 to $2,700,000 plus typically $20,000 to $50,000 of demolition. A top-of-range renovation can exceed a bottom-of-range rebuild. In Seattle a remodel permit takes about 2 to 3 months and a new house 6 to 10 months, which also affects the choice.

What is a substantial alteration in Seattle?

Under Section R107.5.1 of the 2021 Seattle Residential Code, the building official may classify remodeling or additions that substantially extend the useful physical or economic life of a house as a substantial alteration. The house must then meet current requirements for emergency escape openings, means of egress, smoke and carbon monoxide alarms and dwelling unit separation, along with seismic provisions for foundations and wall bracing. Confirm the classification with SDCI early.

Does a big remodel in a flood zone trigger full flood compliance?

In a Seattle flood hazard area, work valued at 50 percent or more of the building’s market value is a substantial improvement and must meet the flood provisions of the residential code (R105.7.3). Seattle’s interpretation counts all improvements over a five-year period, so phasing the work does not avoid it. Check the flood map for your lot before design starts.

How long does a major remodel take before construction starts?

With Piper Cole Architects, a first feasibility check takes about a day and an in-depth study 2 to 3 weeks. Design to permit submission typically takes 2 to 4 months, and a Seattle remodel permit about 2 to 3 months. Added together, that is roughly 5 to 8 months from first call to an issued permit in Seattle, an estimate from those steps rather than a city figure. Eastside cities set their own review times.

How are architect fees set for a million dollar remodel?

David Meade quotes a fixed fee for design and permit, set by the project budget and location, typically about $10,000 to $200,000 depending on scope. Ask any architect which consultants, such as a surveyor or structural engineer, and which city fees sit inside or outside the quoted fee.

Should a remodel budget include contingency?

Yes. Contingency is money held outside the contract for conditions nobody can see until walls are opened, such as rot, old wiring or framing that does not match the drawings. Older houses and deeper scopes need more. It is best set after opening-up work and an engineer’s visit, alongside allowances for any finishes not yet selected.

Is sales tax included in a contractor’s remodel bid in Washington?

For tax purposes, not unless it is itemized. The Washington Department of Revenue says prime contractors must collect retail sales tax from the landowner on the gross contract price, and it presumes a quoted price does not include the tax unless it is separately stated. When comparing bids, check that each one treats sales tax the same way.