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Before You Build in Lompoc, CA: Permit & Rule Checklist (2026)

Everything you need to know before starting a home improvement project

Building a fence, installing a pool, or adding a shed? Each project has its own set of local permits and rules in Lompoc. This guide consolidates fence, pool, ADU, shed, fire pit, and landscaping regulations into one checklist so you know what to expect before you start.

Quick Permit Checklist

At-a-glance overview of permit categories in Lompoc. Click any card for details.

Fences & Walls

Some Restrictions

Height limits, materials, permits, and shared fence rules.

Permit Requirements

Some Restrictions

A building/zoning permit is generally required in Lompoc for fences over 6 feet or masonry/retaining walls; pool barrier fences must meet the California Building Code. Standard residential fences at the height limit may be permit-exempt.

Permit: Over 6 ft / masonryPool Fences: CBC barrier requiredStandard Fences: Often permit-exemptAuthority: Building / planning

Height Limits

Some Restrictions

Lompoc zoning typically allows fences up to 6 feet in side and rear yards and 3โ€“4 feet in front yards, with corner sight-visibility limits. Taller fences require a permit or variance.

Side/Rear: ~6 ftFront Yard: ~3โ€“4 ftCorner Lots: Sight-visibility limitsRegulated Under: Zoning

Neighbor Fence Rules

Few Restrictions

Shared boundary fences in California are governed by the Good Neighbor Fence Act (CA Civil Code ยง841), presuming adjoining owners share the cost equally after 30 days' notice. Spite fences over 10 feet are a private nuisance (ยง841.4).

State Law: CA Civil Code ยง841Cost Sharing: Presumed equalSpite Fence: Over 10 ft = nuisanceNotice: 30-day notice

Approved Materials

Few Restrictions

Lompoc zoning permits standard residential fence materials (wood, vinyl, masonry, ornamental metal, chain link). Barbed wire, razor wire and electric fencing are generally restricted in residential zones.

Allowed: Wood, vinyl, masonry, metalRestricted: Barbed/razor/electricRegulated Under: ZoningZone-Dependent: Yes

Swimming Pools

Heavy Restrictions

Pool permits, safety fencing, and drainage requirements.

Fencing Requirements

Heavy Restrictions

Pools in Lompoc must be enclosed under the California Building Code and Swimming Pool Safety Act: a barrier at least 60 inches (5 feet) high with self-closing, self-latching gates, plus at least one additional drowning-prevention feature.

Min Barrier: 60 in (5 ft)Gates: Self-closing, self-latchingExtra Feature: Cover/alarm/door requiredState Law: CA H&SC ยง115920+

Above-Ground Pools

Some Restrictions

Above-ground pools holding more than 18 inches of water in Lompoc require a building permit and the same barrier protection as in-ground pools; ladders must be removable or secured when unattended.

Permit: Required (>18 in deep)Barrier: 60-in equivalentLadder: Removable/securedState Law: CA H&SC ยง115920+

Safety Rules

Some Restrictions

Pool construction in Lompoc must meet the California Building Code and Swimming Pool Safety Act โ€” barriers, anti-entrapment drain covers, and electrical bonding. A building permit and inspections are required.

Code Basis: CA Building Code (Title 24)Drain Covers: VGB-compliantPermit: RequiredAuthority: Building department

ADUs & Granny Flats

Some Restrictions

Accessory dwelling unit rules and garage conversion permits.

ADU Rules

Few Restrictions

California's statewide ADU law (Gov. Code ยง65852.2) requires Lompoc to allow accessory dwelling units on residential lots by right โ€” detached ADUs up to 1,200 sq ft, 4-foot side/rear setbacks, no owner-occupancy requirement, and no added parking within ยฝ mile of transit.

State Law: CA Gov. Code ยง65852.2Approval: By right (ministerial)Max Detached: 1,200 sq ftSetbacks: 4 ft side/rear

Garage Conversions

Some Restrictions

Converting a garage to living space in Lompoc requires a building permit and zoning review for egress, light/ventilation and parking; converting to a separate unit is often processed as an ADU under state law.

Permit: Building permit requiredIf Separate Unit: ADU rules applyParking: Often not required (ADU)Authority: Building / planning

Sheds & Outbuildings

Some Restrictions

Shed permits, setback limits, and outbuilding size rules.

Shed Rules

Some Restrictions

Lompoc Zoning Code Title 17 exempts one-story detached accessory structures (tool/storage sheds, playhouses) up to 120 square feet from building permits, consistent with the California Building Code. Detached accessory structures must be located on the rear half of the lot, with at least 5 feet between the main building and any accessory structure. Side and rear setbacks may be reduced for small sheds subject to a height-at-property-line formula.

Code Reference: Lompoc Zoning Code Title 17Permit-Exempt Size: โ‰ค120 sq ft, no utilities (CBC)Location: Rear half of lot; 5 ft from mainHeight at Property Line: 9 ft max, sloping up

Fire Pits & Outdoor Structures

Heavy Restrictions

Fire pit placement, outdoor burning restrictions, and permits.

Outdoor Burning

Heavy Restrictions

Open burning in Lompoc is regulated by the Santa Barbara County Air Pollution Control District and the fire department; residential yard-waste burning is generally prohibited and barred on no-burn days. Agricultural burns require a permit.

Authority: SBCAPCD / fire dept.Yard Waste: Generally prohibitedNo-Burn Days: Burning barredAg Burns: Permit required

Fire Pit Rules

Some Restrictions

Recreational fires in approved fire pits using clean, dry wood are generally allowed in Lompoc subject to fire-code clearances and no-burn / red-flag day restrictions; fires must be attended and a safe distance from structures.

Recreational Fire: Allowed (with limits)Red-Flag Days: ProhibitedFuel: Clean, dry woodOversight: Fire department

Landscaping & Tree Removal

Some Restrictions

Tree removal permits, heritage tree protections, and water rules.

Tree Trimming

Few Restrictions

Owners maintain trees on their own property in Lompoc; street trees and trees in the public right-of-way are managed by the city, which requires approval before pruning or removing them.

Private Trees: Owner responsibilityStreet Trees: City approvalClearance: Trim over walks/streetsAuthority: Public works

Tree Removal & Heritage Trees

Some Restrictions

Owners may remove trees on private property in Lompoc; removal of street trees or protected trees requires city approval, and replacement may be required during development.

Private Land: Owner may removeStreet Trees: City approvalDevelopment: Replacement may applyAuthority: Public works / planning

Water Restrictions

Some Restrictions

Outdoor watering in Lompoc is subject to the city water department's conservation rules, including assigned watering days/times and runoff prohibitions during drought. California's MWELO applies to larger new/renovated landscapes.

Watering Days: Assigned/seasonalRunoff: ProhibitedLarge Landscapes: MWELO appliesSet By: City Utilities

General Permit Tips

When do you typically need a permit?

Most cities require permits for structural work, including fences over a certain height, pools, ADUs, and sheds above a size threshold. Even projects that seem minor can trigger permit requirements, so it is always best to check first.

How to apply for a building permit

Visit your local building department or their website. Most jurisdictions accept online applications. You will typically need a site plan, project description, and may need contractor information. Processing times vary from same-day for simple projects to several weeks for larger builds.

Common permit violations to avoid

Building without a permit, exceeding approved dimensions, and ignoring setback requirements are the most common violations. Penalties can include fines, required removal of the structure, and complications when selling your home.

Permit Guides for Nearby Cities

Looking for rules beyond permits? View all ordinances we track for Lompoc.