Fence Regulations in Fremont, CA

If you live in Fremont or are thinking about moving there, fence regulations are one of those things you probably won't think about until they affect you directly. Fremont has 5 specific rules on the books covering different aspects of fence regulations, and some of them might surprise you.

Neighbor Fence Rules

Fremont applies California Civil Code 841 (Good Neighbor Fence Act) requiring neighbors to equally share costs of shared boundary fences.

Key details: Governing Law: CA Civil Code 841. Notice Required: 30 days written. Cost Share: 50/50 presumed. Rebuttal: Unequal benefit. Small Claims: Up to 10,000 dollars.

The rules around neighbor fence rules in Fremont lean permissive, but that does not mean anything goes.

Material Restrictions

Fremont bans barbed wire and electrically charged fencing outright in residential zones under FMC 18.171.030(d). Elsewhere, sharp or charged materials are allowed only at least 8 feet above ground, except to contain livestock.

Key details: Residential zones: barbed/electric wire fully banned. Other zones minimum height: 8 feet above grade. Livestock exception: exempt from height rule. Industrial charged-fence buffer: 3.5 ft behind 6-ft fence. Governing section: FMC 18.171.030(d).

Installing barbed wire or an electrically charged fence in a residential zone, or failing to meet the eight-foot clearance or industrial buffer-fence setback elsewhere, is a zoning code violation subject to Fremont code enforcement, which can order the prohibited material removed or the fence reconfigured to meet Section 18.171.030(d).

This is not one of those rules that cities tend to ignore. Fremont actively enforces its material restrictions requirements.

Fence Permit Requirements

Fremont requires a building permit for any fence over 7 feet tall, any concrete or masonry wall over 4 feet, and any retaining wall regardless of height, under FMC 18.171.030(a). Shorter fences within the standard height limits do not need one.

Key details: Permit trigger, fences: over 7 feet. Permit trigger, masonry/concrete walls: over 4 feet. Permit trigger, retaining walls: any height. Reviewing department: Fremont Building Division. Governing section: FMC 18.171.030(a).

Fence or wall construction started without the required building permit is subject to code enforcement by the Fremont Building Division, which can issue a stop-work order and require after-the-fact permitting, alteration, or removal of the unpermitted structure; unpermitted retaining walls are treated the same regardless of their height.

Retaining Walls

Fremont lets a short open fence sit atop a retaining wall when the wall itself already eats the required yard height, per FMC 18.171.020(d). Where grading creates a slope control area, Section 18.205.330(f) also sets material, engineering and height limits for the wall.

Key details: Fence-on-wall height allowance: up to 4 ft open fence. Slope-control wall material: concrete, masonry, or timber to 3 ft. Side yard wall cap: 4 feet. Max wall height ratio: 1/2 of setback distance. Governing sections: FMC 18.171.020(d); 18.205.330(f).

A retaining wall built without following the grading chapter's slope-control engineering standards, or one that exceeds the fence-height accommodation of 18.171.020(d), is enforceable as a zoning or grading code violation; the city engineer can require redesign, additional soils/geotechnical review, or removal of noncompliant work before final grading sign-off.

Height Limits

Fremont caps fences and hedges at 8 feet in required side and rear yards and 48 inches in front yards under FMC 18.171.010. Corner lots face tighter limits: 48 inches near the side street line and just 30 inches inside the sight-triangle.

Key details: Rear/side yard max: 8 feet. Front yard max: 48 inches. Corner lot near side street: 48 inches within 5 ft. Sight-triangle max: 30 inches above curb. Privacy hedge max: 12 feet.

Fences built over the height limit without an approved exception are a zoning code violation enforced by the Fremont Planning Division, which can require the fence be cut down or removed. The zoning administrator's exception permit under 18.171.060 is also subject to revocation or modification by the zoning administrator, planning commission, or city council under Chapter 18.330 if conditions are violated.

The Bottom Line

Fremont's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Fremont is broadly strict or permissive.

This guide is based on Fremont's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.