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Project Timeline Estimator

Estimate how long your Bay Area construction project will take from design to completion.

Estimate Your Project Timeline

Select your project type, city, and scope to see an estimated timeline broken down by phase.

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Total Estimated Duration

Timelines are estimates based on typical Bay Area projects. Actual duration depends on permit office workload, weather, and project complexity.

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How long does this actually take?

We analyzed thousands of real ADU permit applications in San Francisco, Los Angeles and San Diego to see how long permitting actually takes, and what happens to the ones that never get issued. See the real numbers →

Project Timeline FAQ

Common questions about construction timelines in the Bay Area.

Most ADU projects take 8 to 14 months from design to completion, including 2 to 6 months for permits.

Permit approval is typically the longest phase in Bay Area construction. Some cities take 4 to 6 months for plan review.

Having complete plans and experienced professionals can speed up permits. Design-build firms like 9Builders streamline the process.

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Project Timeline Estimator

Estimate Your Project Timeline

Total Estimated Duration

Project Timeline FAQ

How long does an ADU take to build?

What takes the longest in a construction project?

Can the timeline be shortened?

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