Choosing an Infinity Pool Builder in Los Angeles
An infinity pool is the most demanding build in residential construction. The vanishing edge has to be dead-level within 1/16 of an inch over 30+ feet, supported by a structural caisson system or grade beam, and engineered for hillside loading, surcharge, and seismic. The wrong builder produces a pool that 'kind of' overflows on one side. The right builder delivers a glass-flat mirror.
What Makes Infinity Pools Different (and Expensive)
- Structural engineering by a licensed civil/structural PE
- Soils report and geotechnical recommendations
- Caissons or grade beams — often $40,000–$120,000 alone
- Catch basin sized for displacement + skim flow
- Hydraulic design: oversized weir, balance line, dedicated pump
- Grading & drainage approval through LADBS Hillside division
Real Cost Ranges for LA Infinity Pools
- Modest single-edge infinity (flat to mild slope): $180,000–$260,000
- Hillside infinity with caissons: $260,000–$450,000
- Multi-edge / perimeter overflow: $400,000–$800,000+
- Add architectural glass tile, fire features, automation: +$50,000–$200,000
Hillside Permit Reality in Los Angeles
If your property is in a designated Hillside Area, plan on 6–14 months of permitting through LADBS Grading, Geology, Building & Safety, and (for streams or coastal zones) additional agencies. Beverly Hills, Bel Air, the Palisades, and Hollywood Hills each have their own quirks. A real infinity pool builder has a permit expediter on retainer and existing relationships with plan checkers.
Questions to Ask Any Infinity Pool Builder
- How many infinity pools have you built in LA in the last 5 years?
- Who is your structural engineer and can I see their stamp on a recent project?
- What's the weir thickness and material you specify?
- How is the catch basin sized — gallons of displacement?
- What pump and balance system runs the vanishing edge?
- How do you guarantee the edge stays level with hillside settlement?
Where We Build Infinity Pools in LA
Moda has built infinity and perimeter-overflow pools across Bel Air, Hollywood Hills, Beverly Hills Post Office, Pacific Palisades, Mandeville Canyon, Encino hillside, Hidden Hills, and Calabasas. Each property gets a custom hydraulic + structural package — no template designs.
💡 Pro Tip
Never accept a 'fixed price' on a hillside infinity pool before geotech and structural engineering are complete. Builders who quote firm without engineering are either gambling with your money or planning to recover it through change orders.
Frequently Asked Questions
How much does an infinity pool cost in Los Angeles?
Modest single-edge infinity pools start around $180,000. Hillside builds with caissons run $260,000–$450,000. Perimeter-overflow pools commonly exceed $500,000.
How long do infinity pool permits take in LA?
Hillside infinity pools typically require 6–14 months for grading, geology, and Building & Safety approval. Flat-lot infinity builds can move in 8–16 weeks.
Do I need a structural engineer for an infinity pool?
Yes. California requires a licensed structural engineer to stamp the design, and most LA jurisdictions also require a soils/geotech report for any vanishing-edge pool.
What maintains the perfectly level vanishing edge?
A precision-leveled weir poured to ±1/16 inch, an oversized catch basin sized to displacement, a dedicated VFD pump, and a balance line preventing surge. Settling is controlled with caissons or grade beams tied to bedrock.
Can any pool contractor build an infinity pool?
Legally any C-53 can. Practically, very few have built more than a handful. Ask for at least 3–5 completed infinity references in LA before signing.
What's the difference between infinity and perimeter overflow?
Infinity pools have one or two vanishing edges. Perimeter-overflow (or 'knife-edge') pools overflow on all sides into a slot deck, creating a mirror effect. Perimeter overflow costs roughly 1.5–2x an infinity pool.
