Mammoth Lakes · Building on your lot
Building on your lot in Mammoth Lakes
Mammoth Lakes sets its own fence heights, accessory-structure sizes and home-business rules. Fence limits depend on the setback and cover all zones except Industrial.
Key points
- Fence height: Town rule: outside Industrial zones, fences are limited to 3 ft in front and street side setbacks and 6 ft elsewhere.
- Detached garages: The town limits detached garages to 1,000 sq ft unless the Director approves more or the parcel is 1 acre or more.
- Home businesses: Town rule: home businesses need a Town business tax certificate; retail sales, vehicle repair and adult businesses are not allowed.
Each rule below is marked Mammoth Lakes code or CA state law and links to the section it comes from (checked October 2026). General information, not legal advice.
Fences and walls
| Height anywhere on the lot |
|
|---|---|
| Front yard height |
|
| Side and rear yard height |
|
Sheds, garages and other accessory structures
| Size or lot coverage |
|
|---|
Running a business from home
| Employees |
|
|---|---|
| Permit |
|
| Businesses not allowed |
|
Solar panels and EV chargers
| EV charger permit |
|
|---|---|
| Solar height and setbacks |
|
| Solar permit process |
|
Tree removal
| Exemptions |
|
|---|---|
| Permit to remove |
|
Other Mammoth Lakes rules on this
Mammoth Lakes's code also has these chapters. We have not summarized their values on this page yet; read them in the library.
- Keeping animals (§ 17.52.070)
- Urban lot splits and two-unit projects (SB 9) (§ 17.52.260)
Who this affects
Frequently asked questions
How tall can a fence be in Mammoth Lakes?
Town rule: outside Industrial zones, fences are limited to 3 ft in front and street side setbacks and 6 ft elsewhere.
How big can a shed or accessory building be in Mammoth Lakes?
The town limits detached garages to 1,000 sq ft unless the Director approves more or the parcel is 1 acre or more.
Can I run a business from my home in Mammoth Lakes?
Town rule: home businesses need a Town business tax certificate; retail sales, vehicle repair and adult businesses are not allowed.
Do I need a permit for solar panels or an EV charger in Mammoth Lakes?
Mammoth Lakes's code: Apply in person, by mail or electronically, with any required processing and inspection fees; electronic signatures accepted. (Applies to electric vehicle charging stations.) (§ 15.04.170); The panel array cannot be taller than the maximum legal building height. (To qualify for expedited review as a small residential rooftop solar system.) (§ 15.04.160).
Do I need a permit to remove a tree in Mammoth Lakes?
Mammoth Lakes's code: Exempt: removing a tree that is an immediate safety hazard to life or property. (As determined by named Town officials, such as the Fire Marshal or Building Official, or a public utility company.) (§ 17.36.140); Exempt: routine tree maintenance, such as trimming or thinning branches. (§ 17.36.140).
General information, not legal advice.
Ask about a specific Mammoth Lakes property
Ask GoCodebook how these rules apply to your address and get an answer that cites the section.
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