Ask five people how long a building permit takes and you will get five answers. Here are realistic ranges for US residential and light-commercial projects in 2026 — and what actually moves the needle.
Typical permit timelines
- Simple remodel / interior alteration: 2–6 weeks.
- Home addition: 4–10 weeks.
- New single-family home: 6–16 weeks.
- Commercial / multi-family: 3–9 months, sometimes more with planning-commission steps.
Why timelines vary by state
Some jurisdictions are famously fast (many Texas suburbs), others famously slow (California coastal cities, New York City). Staffing, amendment layers and backlog all matter — your engineer should know your city's temperament before submitting.
The #1 delay: incomplete submittals
Most delays are not the city's fault. The top causes we see:
- Structural calculations missing or not matching the drawings.
- Details referenced but not included ("see S-501" — S-501 doesn't exist).
- Wrong code edition on the cover sheet.
- Energy / Title 24 forms missing where required.
Each correction round adds 2–4 weeks. A complete first submittal is the single fastest thing you can do for your schedule.
How to speed things up
- Pre-application meeting with the plan reviewer for complex projects.
- Submit structural calcs and details together — never "calcs to follow".
- Respond to correction comments with clouded revisions and a written response letter.
- Work with a team that has done your city's submittals before — see our portfolio.
We prepare permit-ready sets designed to clear plan check on the first round. Get a quote.