Permit Requirements: Bostonia vs San Marcos

Do I need a permit to build a 6-foot fence in unincorporated San Diego County?

No. Fences 6 feet or under are generally exempt from building permits under County Code Section 91.1.105.2. However, fences in special zones or combined with retaining walls may still need permits.

What about a fence on top of a retaining wall?

If the combined height of the retaining wall and fence exceeds 6 feet, a building permit is required. The retaining wall itself may need a separate permit if it exceeds 3 feet.

How do I apply for a fence permit?

Contact the County Department of Planning & Development Services Building Division. Submit a site plan showing the proposed fence location, height, materials, and relationship to property lines.

Do I need a permit for a fence in San Marcos CA?

Most residential fences do not require a building permit. Wood fences and freestanding masonry walls up to 7 feet are permit-exempt but must conform to city standards. Fences over 6 feet need Planning Department approval.

What fence standards apply in San Marcos without a permit?

Even without a permit, fences must comply with height limits (42 inches in front yards, 6 feet in side/rear yards), approved materials, and setback requirements. Pool barrier fences must meet California Building Code safety standards.

Do I need to notify my neighbor before building a fence in San Marcos?

While not legally required, San Marcos recommends discussing fence plans with neighbors before construction, especially for fences on or near shared property lines. A property survey may be advisable for boundary fences.