Los Angeles deck costs are among the highest in the country in 2026, running 25 to 40 percent above the national average. Expect to pay $28 to $50 per square foot for pressure-treated wood and $50 to $90 per square foot for composite decking. A standard 12×16 deck in Los Angeles typically costs between $8,500 and $17,000.
Estimates are for planning purposes only and based on 2025 contractor data.
Always get at least 3 quotes before hiring. Prices vary by ZIP code, site conditions, and contractor availability.
Deck costs in Los Angeles are among the highest in the country in 2026, running 25 to 40 percent above the national average. Expect to pay $28 to $50 per square foot for pressure-treated wood and $50 to $90 per square foot for composite decking. A standard 12×16 deck in Los Angeles typically costs between $8,500 and $17,000.
Frequently Asked Questions
How much does a deck cost in Los Angeles in 2026?
Los Angeles homeowners typically pay between $8,000 and $18,000 for a new deck in 2026. The Westside, Santa Monica, and Beverly Hills run the highest. The San Fernando Valley and outer suburbs are slightly more affordable.
Do I need a permit to build a deck in Los Angeles?
Yes, the City of Los Angeles has detailed permit requirements for deck projects. The permit process can take 4 to 12 weeks. LA County unincorporated areas have separate requirements. Permit costs range from $300 to $1,200.
What is the best decking material for Los Angeles?
Composite decking is recommended for Los Angeles due to intense UV exposure, occasional coastal moisture, and the desire for low-maintenance outdoor living. Many LA homeowners also choose tropical hardwood for its premium appearance.
When is the best time to build a deck in Los Angeles?
Los Angeles has mild weather year-round making it possible to build any time. October through April avoids the hottest months. Spring and fall are most popular but also have higher contractor demand so book early.