Cost details · For contractors
Cost detailsWashingtonNew home build

How much does a new home build cost to build in Washington?

Building a new home build in Washington costs a contractor about $453,665 before markup. At a standard finish it typically sells for about $496,919. What moves both numbers: the finish level, how hard the site is to work in, and where in the state you build.

Cost to build · WA · 2026
$453,665 to build
Cost to the contractor, before markup · standard finish, normal access
Sells for
Typically sells for about $496,919
Full sell-price range $451,000 to $708,000

For the regional benchmark behind these numbers, see the 2026 Construction Price Index.

What decides your number

Two home projects the same size can land thousands apart. Three things move the total more than anything else, and the first one does most of the work.

1 · Finish level: the biggest lever

TradesMetrics prices every job at one of four finish levels. This single choice is what stretches the sell price from $451,000 to $708,000.

Ranges below are what each finish level typically sells for, at normal access.

Basic

$451-503k
Entry-finish build. Standard plan, builder-grade materials and fixtures.

Standard

$485-539k
Mid-range build with quality finishes, upgraded kitchen and baths.

Premium

$544-602k
Semi-custom build, high-end finishes, some custom design and millwork.

Luxury

$645-708k
Full custom build. Architectural design, top-tier materials throughout.

2 · Site access

An easy ground-floor home with parking is cheaper to work in than a tight upper-floor space with stairs and no loading. Difficult access adds labor hours for moving materials and debris.

3 · Where in WA

Local trade wages and material costs set the baseline, and Washington's larger metros run higher than its smaller cities. The same home costs more in Seattle, Spokane or Tacoma than in Vancouver, Bellevue, Kent or other cities in WA.

If you are pricing the job

Where the money goes, and why markup is not margin

Here is a standard-finish, normal-access Washington home, milestone by milestone, then your cost, markup and price broken out by type. Ballpark for planning, not a line-item quote.

MilestoneLabMatEquSubFeeTotal
Permits & Fees----$30,335$30,335
Site Prep & Demolition$896-$1,177$10,700-$12,773
Excavation & Foundation-$642$6,848$42,907-$50,397
Site Servicing & Utilities--$2,675$17,655-$20,330
Structure & Framing---$78,965-$78,965
Exterior Envelope-$13,589-$45,796-$59,385
MEP Rough-In-$749-$47,401-$48,150
Insulation & Vapor Barrier---$14,552-$14,552
Drywall & Wall Prep---$16,050-$16,050
Interior Finishes-$15,301-$47,508-$62,809
Cabinetry & Countertops-$15,355-$10,112-$25,467
Fixtures & Trim-Out-$18,639-$12,391-$31,030
Closeout$2,352--$535$535$3,422
Contingency-----$0
Your cost$3,248$64,275$10,700$344,572$30,870$453,665
Markup$1,29940%$6,42810%$1,07010%$34,45710%$00%$43,254~9.5%
Price$4,547$70,703$11,770$379,029$30,870$496,919

Contingency is shown at $0 here. When you price a real job, account for it, typically 5 to 10% of cost.

Markup and margin are the same profit, not the same number. This job's 9.5% markup on your cost works out to only a 8.7% margin on the price. Markup is figured against your cost and margin against the higher sell price, so margin always lands lower. Price off the markup as if it were your margin and the job comes up short.

Full markup vs margin guide →

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Common questions

How much does a new home build cost in Washington in 2026?
A standard new home build in Washington costs a contractor about $453,665 to build, and at TradesMetrics default markups typically sells for about $496,919. See the ranges above for basic through luxury and easy through difficult access.
What is the difference between basic, standard, premium and luxury?
Basic is a full-scope home build at entry finish: budget materials and standard fixtures, same layout. Standard steps up to mid-range materials and finishes with minor changes. Premium is semi-custom with high-end finishes and some layout change. Luxury is full custom: reworked layout and top-tier materials throughout.
How much does a new home build cost per square foot?
A full home build typically sells for about $190 to $210 per square foot at a standard finish, more for premium and luxury.
Why does the price vary so much?
For a Washington home, finish level is the biggest driver, then site access and where in the state you build. Trade wages vary by region, and larger metros run higher than smaller cities.
Is this an estimate or a quote?
It is an estimate: a planning range built from regional cost data and your finish level. A quote is a firm price a contractor gives after seeing the site and final selections. Use the estimate to set a budget, then get a quote to lock it in.
How much should I budget for surprises?
The base already reflects typical job costs, so you do not need a routine overrun buffer. Add an optional contingency (commonly 5 to 15 percent) only when a job carries real unknowns, like old wiring or plumbing you cannot see until the work opens up.
What is the difference between markup and margin?
On a standard home priced with TradesMetrics default markups, the work costs you $453,665 and the client pays $496,919, the Price total of the table. That $43,254 difference is the same profit measured two ways: 9.5 percent of your cost (markup) but only 8.7 percent of the price (margin), because margin divides the same dollars by the larger price. The base already reflects typical job costs, so no contingency is added by default.
What is the real cost of labor on a job?
Base wage is not the real cost. Once you add payroll taxes, workers comp, benefits and paid time off, a worker costs 35 to 50 percent more than their hourly wage. Estimating off base wage is a common way to lose money.