Cost & Permit Guide
Do You Need a Permit to Clear Land in the Bay Area?
Whether you need a permit to clear land in the Bay Area depends on what you're doing and where. Brush and vegetation removal (including forestry mulching) often needs none, but grading, removing protected trees, and any work in creek setbacks or on steep slopes usually does. Permit fees typically run $100–$500. Always confirm with your county before the machine shows up.
Last updated: June 2026
When do you usually NOT need a permit?
- ▸Mowing, brush removal, and weed/fire abatement on relatively flat ground.
- ▸Forestry mulching that recycles material on-site (treated as vegetation management).
- ▸Routine defensible-space work around an existing home.
When do you usually NEED one?
- ▸Grading or earthmoving past a county threshold (often ~50 cubic yards).
- ▸Removing protected or heritage trees (many counties regulate native oaks).
- ▸Any work in a creek/riparian setback, wetland, or on a steep slope.
- ▸Clearing tied to new construction or a change in land use.
Where do I check for my county?
Permitting is handled at the county (or city) planning/building department. Rules and oak ordinances vary, so confirm before you start.
Where Bay Area permitting is handled
| County | Check with |
|---|---|
| Sonoma / Napa | Permit Sonoma / Napa County PBES — strong oak & hillside rules |
| Marin / San Mateo | County planning — WUI, slope, and tree ordinances |
| Alameda / Contra Costa | County or city planning — grading + protected trees |
| Santa Clara / Solano | County planning — ag exemptions vary by parcel |
| San Francisco | SF Planning / DBI — urban lot & demolition rules |
What happens if you skip the permit?
A stop-work order, fines, and sometimes a costly restoration order — especially for protected-tree or creek-setback violations. A good operator will flag what's permittable, but the property owner is ultimately responsible. When in doubt, a quick call to the county is far cheaper than a violation.
FAQ
Common questions
Does forestry mulching need a permit?+
Often no, because it recycles material on-site rather than grading or hauling. But protected trees, creek setbacks, and steep slopes can still trigger one — confirm locally.
Are agricultural parcels exempt?+
Some clearing on established ag land has exemptions, but they vary by county and don't cover protected trees or waterway work. Verify your parcel's status with the county.
Get a real number for your property
Ranges are a starting point — tell us about your land and get an actual quote from a local crew.