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🏊 Swimming Pools & Spas/Above-Ground Pools

Above-Ground Pools: Redwood City vs San Mateo

How do above-ground pools rules compare between Redwood City, CA and San Mateo, CA?

Redwood City and San Mateo have similar restriction levels.

Redwood City, CA

San Mateo County

Some Restrictions

Above-ground pools over 18 inches deep in Redwood City require a building permit and must meet California pool safety fencing requirements. Temporary inflatable pools under 18 inches are generally exempt from permit requirements.

View full Redwood City rules β†’

San Mateo, CA

San Mateo County

Some Restrictions

Prefabricated above-ground pools with walls entirely above grade and under 5,000 gallons are exempt from building permit requirements in San Mateo. All other pools require permits and must meet safety act fencing requirements.

View full San Mateo rules β†’

Key Facts Comparison

FactRedwood CitySan Mateo
PermitRequired for pools over 18 inches deep-
Fencing60-inch barrier required60-inch barrier required for all permanent pools
Inflatable PoolsUnder 18 inches generally exempt-
ContactBuilding Division (650) 780-7350Building Division (650) 522-7172
Prefab Above-Grade (<5,000 gal)-Exempt from permit
Larger Above-Ground Pools-Building permit required

Highlighted rows indicate differences between cities.

Redwood City FAQ

Do I need a permit for an above-ground pool in Redwood City?

Above-ground pools over 18 inches deep in Redwood City require a building permit and must meet California pool safety fencing requirements. Temporary inflatable pools under 18 inches are generally exempt from permit requirements.

What are the rules for above-ground pools in Redwood City?

Permit: Required for pools over 18 inches deep. Fencing: 60-inch barrier required. Inflatable Pools: Under 18 inches generally exempt. Contact: Building Division (650) 780-7350.

San Mateo FAQ

Do I need a permit for an above-ground pool in San Mateo?

Prefabricated above-ground pools with walls entirely above grade and under 5,000 gallons are exempt from building permit requirements in San Mateo. All other pools require permits and must meet safety act fencing requirements.

What are the rules for above-ground pools in San Mateo?

Prefab Above-Grade (<5,000 gal): Exempt from permit. Larger Above-Ground Pools: Building permit required. Fencing: 60-inch barrier required for all permanent pools. Contact: Building Division (650) 522-7172.

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