What is a good cost per square foot?

It depends entirely on market and product type. Economy residential can be $150–$230/SF, luxury custom can exceed $700/SF, and dense urban commercial can exceed $1,000/SF. Compare to local comps.

Does $/SF include land?

It can, but only if you say so. Builder $/SF usually excludes land; developer or investor $/SF often includes it. Always confirm which is being quoted.

How do I compare bids on the same project?

Divide each bid by the exact same square footage (the design drawings). Any $/SF difference then reflects real cost differences, not measurement differences.

Why is my small home's $/SF so high?

Fixed costs — foundation setup, permits, mobilization, kitchens, and bathrooms — are spread over fewer square feet. Small homes almost always cost more per foot than large homes of similar quality.

Cost Per Square Foot Calculator

Cost per square foot is the most quoted and most misunderstood number in real estate construction. Used correctly, it lets you compare projects of wildly different sizes on a common scale. Used carelessly, it invites false-precision decisions. This tool gives you the raw number instantly and then explains how to use it responsibly.

Enter total project cost and finished square footage to get a $/SF benchmark you can compare to industry averages and comparable projects.

The formula

Cost per square foot equals total project cost divided by finished (or gross) square footage. What you decide to include in each side of that fraction determines what the number actually means. Include only hard construction on the top and gross square footage on the bottom for a builder $/SF. Include all-in project cost (land, soft costs, financing, hard costs) and net rentable area for an investor $/SF.

Gross vs. net square footage

Gross square footage measures the entire building footprint including walls, mechanical space, corridors, and lobbies. Net or leasable square footage measures only the space a tenant occupies. Multi-family and commercial projects can have a 15–25% loss factor between gross and net, which massively changes the $/SF number depending on which you use. Always compare like to like.

When $/SF misleads

A 1,200 SF custom home and a 6,000 SF custom home will show very different $/SF numbers even if built to identical specs — the smaller home carries higher fixed costs per foot. Similarly, a 40-story tower has structural, mechanical, and vertical transportation costs that a low-rise doesn't. Only benchmark within the same product type and roughly similar size.

Practical uses

Compare contractor bids by dividing each bid by the same square footage. Underwrite a deal by dividing target sale price by the buildable square footage. Sanity-check a pro forma by comparing your projected $/SF to recent comparable completions in the same city.

Regional and product-type context

A defensible $/SF benchmark is always local, product-type-specific, and time-stamped. Coastal California single-family in 2024 landed roughly $350–$550/SF for standard quality; the same product in inland Texas landed $210–$300/SF. Class B multifamily podium construction in Denver ran $280–$340/SF while Class A high-rise in Manhattan cleared $900/SF. When someone quotes you a single national $/SF number, ask what year, what product type, and what geography — otherwise the number is decorative. Track $/SF you actually experience across your own completions; your internal history is more useful than any published index because it embeds your team's productivity, your typical scope, and your subcontractor relationships.

Worked Example

Example: A builder quotes $780,000 to construct a 2,600 SF single-family home. Cost per square foot is $780,000 ÷ 2,600 = $300/SF. Compared to a local benchmark of $260–$320/SF for that quality tier, the bid is on the high end but defensible.

Common Mistakes

• Comparing $/SF across different building types. • Mixing gross and net square footage in the same benchmark. • Forgetting whether the number includes land and soft costs. • Using $/SF as the only decision metric — it hides scope differences.

How It Works

Step 1 — Cost per square foot = Total Project Cost ÷ Finished Square Feet.
Step 2 — This calculator normalizes projects of different sizes so you can benchmark against comparable builds.
Step 3 — Use it during due diligence, contractor bid comparison, and sale-price analysis.

Frequently Asked Questions

What is a good cost per square foot?: It depends entirely on market and product type. Economy residential can be $150–$230/SF, luxury custom can exceed $700/SF, and dense urban commercial can exceed $1,000/SF. Compare to local comps.
Does $/SF include land?: It can, but only if you say so. Builder $/SF usually excludes land; developer or investor $/SF often includes it. Always confirm which is being quoted.
How do I compare bids on the same project?: Divide each bid by the exact same square footage (the design drawings). Any $/SF difference then reflects real cost differences, not measurement differences.
Why is my small home's $/SF so high?: Fixed costs — foundation setup, permits, mobilization, kitchens, and bathrooms — are spread over fewer square feet. Small homes almost always cost more per foot than large homes of similar quality.

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