How Long Does a Building Permit Take? By State, City, and Project Type

Building permit timelines are one of the most common sources of project delays — and one of the most variable factors across jurisdictions. A permit that takes three days in a rural county can take three months in a major city. Understanding what drives these timelines and what you can do to expedite them saves money and prevents the frustration of a stalled project.

Your contractor should factor permit timelines into their project schedule from day one. If they haven't, that's a problem worth discussing before you sign.

How long do building permits typically take by jurisdiction type?

Permit processing times vary enormously. Small rural jurisdictions with light permit volume often process simple residential permits in 1–5 business days. Medium-sized cities typically run 2–4 weeks for standard residential projects. Major metropolitan areas — Los Angeles, New York, Chicago, Miami — frequently run 6–16 weeks, with complex projects taking longer. Some highly regulated coastal jurisdictions in California and the Northeast can take 6 months or more for significant additions.

A 2023 National Association of Home Builders survey found that over-the-counter permit processing (simple projects approved immediately) was available in only 30% of jurisdictions surveyed. The majority of jurisdictions required plan review, with median review times of 3–6 weeks for residential projects.

What factors cause permits to take longer?

Factors that slow permit processing include: incomplete or incorrect plan submissions (the most common cause of delay), plan review backlog at the building department, projects that require multiple reviewers (structural, electrical, mechanical, planning/zoning), projects in special overlay zones (historic districts, flood zones, coastal zones), projects requiring variances or conditional use permits, and post-disaster surges in permit applications.

Incomplete submissions are the most controllable factor. A contractor who submits complete, code-compliant plans the first time avoids the back-and-forth of plan review corrections that can add weeks to a project. This is another benefit of experienced, licensed contractors: they know what the local building department requires.

How can I expedite a building permit?

Most jurisdictions offer expedited or “over-the-counter” plan review for a premium fee — typically 50–100% above standard permit fees. For time-sensitive projects, this fee is often worth paying. Ask your contractor or contact the building department directly about expedited review options.

Some jurisdictions allow “pre-application meetings” where you can present your project to staff before submitting formal plans, getting guidance that reduces the chance of corrections. Online permit portals, where available, generally process faster than paper submissions because they eliminate physical handling delays.

What delays the permit process after submission?

After submission, the most common delays are: plan review corrections requiring the contractor to revise and resubmit plans, required referrals to other departments (fire, health, zoning), neighbor notification periods for certain project types, and environmental review for projects in sensitive areas. Your contractor should monitor permit status and respond to correction notices promptly.

A contractor who doesn't respond to plan review corrections for weeks because they're busy with other projects is burning your time and money. Ask upfront how your contractor monitors permit status and who is responsible for responding to corrections.

Does permit processing time affect contractor scheduling?

Significantly. A reputable contractor accounts for permit timelines when scheduling project start dates. If they promise to start in two weeks but the permit realistically takes six weeks, either they are planning to start without a permit or they know something about expediting that they haven't shared with you. Both warrant a direct conversation.

Work with a licensed contractor who understands your local permitting process. Verify their license at CheckLicensed.com for $0.99 before signing. Licensed contractors in your area typically have an established relationship with the local building department and know how to navigate the process efficiently.