Home Addition Cost in Salt Lake City (2026): Average Price & Estimate

Home Addition Cost in Salt Lake City

Estimated home addition cost in Salt Lake City

$41,600–$124,800

Roughly about 4% above the national average.

Growth and a mountain climate nudge costs slightly above average.

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Addition size (square feet)

Addition type

Finish level

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Based on Salt Lake City, UT pricing.

Estimated cost range

$41,600–$124,800

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An estimate for planning, not a quote. Get written quotes from local pros below.

Estimate, not a quote. Local prices vary by contractor and project. These are 2026 estimates for Salt Lake City, UT. Get written quotes from licensed Salt Lake City contractors before you budget.

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What to know about home addition in Salt Lake City

Frost heave and freeze-thaw in Salt Lake City can stress foundations, so good drainage and proper footing depth matter for a lasting result.

What affects home addition cost in Salt Lake City

Beyond the local market, the same factors that drive home addition cost everywhere apply in Salt Lake City:

Addition size in square feet.
Type: a bump-out is cheapest, a second-story addition the most expensive.
Whether it includes a kitchen or bathroom (plumbing).
Foundation, framing, roof, and tie-in to the existing structure.

Home Addition cost by addition type in Salt Lake City

These figures are adjusted for Salt Lake City pricing (about 1.04x the national average), so they reflect what local homeowners actually pay.

Estimated home addition cost by addition type in Salt Lake City (2026)

Addition type	Cost in Salt Lake City	Typical total
Bump-out (a few feet)	$83.20 to $250 /sq ft	About $33,300 to $99,800
Sunroom	$93.60 to $281 /sq ft	About $37,400 to $112,300
Single room addition	$104 to $312 /sq ft	About $41,600 to $124,800
In-law / suite with bath	$125 to $374 /sq ft	About $49,900 to $149,800
Second-story addition	$146 to $437 /sq ft	About $58,200 to $174,700

Frequently asked questions

How much does home addition cost in Salt Lake City?

In Salt Lake City, UT, home addition typically costs $41,600 to $124,800 in 2026 for a standard project, about 4% above the national average. Your exact price depends on size, materials, and scope.

Why does home addition cost more or less in Salt Lake City?

Growth and a mountain climate nudge costs slightly above average. Labor rates, permit costs, and local demand are the main reasons Salt Lake City prices differ from the national average.

Do I need a permit for home addition in Salt Lake City?

Most home addition projects require a permit. Requirements vary by city and Utah jurisdiction, so confirm with your local building department. A licensed contractor usually pulls the permit for you.

When is the best time of year for home addition in Salt Lake City?

In Salt Lake City, exterior work is easiest from late spring through early fall. Winter weather can delay roofing, siding, concrete, and foundation jobs, and some crews book up fast once the weather breaks.

Is home addition cheaper outside Salt Lake City?

Sometimes. Salt Lake City runs about 4% above the national average. Nearby smaller towns with lower labor costs can come in cheaper, while denser urban areas often cost more. Always compare quotes from contractors who serve your specific area.