How much does adu construction cost in Burlingame?

Most Burlingame projects land between $216,000 – $432,000, with an average near $324,000. Local crews quote roughly $360 – $720 per square foot.

What is included in the Burlingame price per square foot?

Typically materials, labor and cleanup. Permits, disposal and access challenges are usually quoted separately.

Unit pricing

ADU Construction cost per square foot in Burlingame

ADU Construction cost per square foot in Burlingame, California in 2026.

Low

$216,000

Average

$324,000

High

$432,000

Burlingame crews quote about $360 – $720 per square foot.

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Multiply local unit rates by your real measurements.

What drives adu construction prices in Burlingame

Local labor, permitting and climate move Burlingame prices away from the national average.

Labor market

Licensed Burlingame contractors carry California workers' comp and prevailing wage pressure, and crews here quote roughly 44% above the national labor average. Demand in the Bay Area market peaks in spring, so booking early usually beats a rush premium.

Permits

Burlingame follows the California Building Standards Code, so most structural, electrical, plumbing and re-roof work needs a permit from the Burlingame building department plus Title 24 energy compliance. Bay Area seismic retrofit standards and strict energy upgrades are common conditions of approval.

Climate

Burlingame sits in a mild marine climate with heavy winter rain, so expect proper drainage, moisture detailing and a dry-season schedule for exterior work.

Burlingame unit pricing by material

Prefab studio ADU$335 – $460

Site-built 1-bedroom$460 – $605

Site-built 2-bedroom$605 – $785

Custom high-end ADU$785 – $1,100

Ways to lower your Burlingame price

Use pre-approved ADU plans where your city offers them — saves months and design fees.
Detach only if required; attached and conversion ADUs cost far less.
Collect three written bids on an identical scope — spreads of 20–40% are normal.
Book in the off-season and stay flexible on the start date to save 5–15%.
Bundle nearby work into one mobilization so you only pay setup and travel once.
Ask what the contractor would change to cut 10% without hurting durability.

Burlingame questions

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