How Long Does It Take to Get an Excavation Permit?
Quick Answer
1–4 weeks in most jurisdictions. Simple residential trenching permits may be issued in 3–5 business days, while commercial or road-crossing excavation permits often require 2–4 weeks due to utility locates and traffic plans.
Typical Duration
Quick Answer
Getting an excavation permit typically takes 1–4 weeks, depending on the scope of work, your local jurisdiction, and whether the dig crosses public rights-of-way or utility corridors. Simple residential projects like fence-post holes or sprinkler lines can be permitted in as little as 3–5 business days, while large commercial excavations may take a month or more.
Factors That Affect Timeline
| Factor | Impact on Timeline |
|---|---|
| Residential vs. commercial | Residential is faster (3–10 days); commercial adds 1–3 weeks |
| Utility locates (811 call) | Mandatory 2–3 business day waiting period in most states |
| Right-of-way encroachment | Adds 1–2 weeks for traffic control and restoration plans |
| Environmental review | Can add 2–6 weeks if wetlands or protected areas are involved |
| Depth of excavation | Trenches over 5 feet trigger OSHA shoring requirements and extra review |
Step-by-Step Process
1. Call 811 Before You Dig
Every state requires you to contact 811 at least 2–3 business days before any excavation. Utility companies will mark underground lines at no cost. This step is non-negotiable and is often a prerequisite for your permit application.
2. Submit the Permit Application
Visit your city or county building department (many now accept online applications). You will typically need a site plan showing the excavation location, depth, dimensions, and proximity to property lines and utilities.
3. Plan Review
The building department reviews your application for compliance with local codes, setback requirements, and erosion-control standards. Simple residential permits may be reviewed same-day or within 3–5 days. Commercial projects usually go through a more thorough plan review lasting 1–3 weeks.
4. Additional Agency Approvals
If your excavation crosses a public road or sidewalk, you may need a separate right-of-way permit from the public works department. Excavations near waterways may require state environmental agency review.
5. Permit Issuance and Inspection
Once approved, the permit is issued and you can begin work. Most jurisdictions require an open-trench inspection before backfilling.
Typical Timelines by Project Type
| Project Type | Typical Permit Timeline |
|---|---|
| Residential fence or irrigation trench | 3–5 business days |
| Residential utility connection | 5–10 business days |
| Commercial site excavation | 2–4 weeks |
| Road or sidewalk crossing | 2–4 weeks |
| Excavation near wetlands or waterways | 4–8 weeks |
Tips to Speed Up the Process
- Call 811 immediately — the utility-locate waiting period runs concurrently with your application.
- Submit a complete application — missing site plans or dimensions are the most common cause of delays.
- Check for expedited review — many jurisdictions offer same-day or next-day review for an additional fee.
- Hire a licensed contractor — permitted contractors often have established relationships with plan reviewers.
Costs
Excavation permit fees range from $50–$200 for residential projects and $200–$1,000+ for commercial work. Right-of-way permits carry separate fees, often $150–$500, plus a refundable restoration deposit.