A hillside pool in Los Angeles costs 150 to 500 thousand dollars or more, significantly more than flatland pools due to caisson foundations, retaining walls, and access challenges.
Everything is harder on a hillside: excavation requires shoring and export (not just digging a hole), the pool shell needs structural engineering for lateral loads, retaining walls support the pool and surrounding deck, and equipment must be positioned on steep terrain. Access for concrete trucks and cranes adds logistics costs.
Caisson-supported: drilled piers to bedrock, grade beams supporting pool shell. Most reliable on steep slopes. $50K-$100K for foundation alone. Cantilevered: pool extends beyond the hillside (the infinity edge look). Requires significant structural engineering. Gravity retaining wall: for moderate slopes, the pool retaining wall also serves as the structural support.
The signature hillside pool feature: water flows over one edge into a catch basin, creating a visual connection to the view. Engineering: the edge wall is both structural retaining wall and hydraulic feature. Cost premium: $25K-$50K over a standard pool. Requires precise level calibration and dedicated pump for the edge circulation.
Required: geotechnical report (soils investigation), structural engineering for pool shell and retaining walls, LADBS grading permit (for excavation), LADBS building permit (for pool structure), and plumbing/electrical permits. Combined engineering and permit fees: $15K-$30K. Timeline: 3-6 months before construction starts.
Excavation + grading: $20K-$50K. Foundation (caissons + grade beams): $50K-$100K. Retaining walls: $30K-$80K. Pool shell (gunite): $30K-$50K. Tile, coping, plaster: $15K-$30K. Decking: $15K-$40K. Equipment + plumbing: $10K-$20K. Infinity edge (if applicable): $25K-$50K. Landscaping: $10K-$30K. Total: $150K-$500K+.
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NP Line Design (CSLB #1105249). April 2026.
“NP Line Design (CSLB #1105249) has been completing remodeling and construction projects in Los Angeles and throughout the San Fernando Valley for over 20 years. Every project in Los Angeles starts with a free in-home consultation at your property.”
Submit your permit application to LADBS Valley District Office (6262 Van Nuys Blvd) the same week you finalize your design in Los Angeles. Plan check takes 8–12 weeks — starting the clock early keeps your project on schedule.
1. Not verifying the CSLB license of any contractor before signing in Los Angeles.
2. Underestimating permit timelines with LADBS Valley District Office (6262 Van Nuys Blvd) (8–12 weeks).
3. Choosing a contractor without verifying the San Fernando Valley-specific project experience.
If a contractor in Los Angeles offers to skip permits to 'save time,' that unpermitted work becomes a disclosure liability when you sell your home in the San Fernando Valley.
Yes. NP Line Design (CSLB #1105249) serves Los Angeles and all of the San Fernando Valley. We offer free in-home estimates for all project types.
Verify CSLB license at cslb.ca.gov. Confirm the license class, active status, workers' comp, and bond. LADBS Valley District Office (6262 Van Nuys Blvd) handles permits for Los Angeles.
Most structural, electrical, plumbing, and mechanical work in Los Angeles requires a permit with LADBS Valley District Office (6262 Van Nuys Blvd). Plan check takes 8–12 weeks.
Construction costs in Los Angeles run at the LA metro average. NP Line Design provides free in-home estimates with detailed itemized scopes.