Deck Building Cost in San Francisco (2026)
Average cost in San Francisco
US$6,500 — US$65,000
US$45 — US$110 per sq ft
Cost Breakdown
ItemizedSkilled carpentry and installation
45%
Decking boards (Redwood, Composite, or Ipe)
35%
Joists, beams, and concrete footings
12%
City fees and architectural plans
5%
Fasteners, stains, and sealants
3%
Sales Tax at 7.25%
📋What's Included
ScopeTypically Includes
- Pressure-treated lumber
- Concrete footings
- Railing system
- Stairs (1 set)
- Hardware & fasteners
- Labor
Typically Excludes
- Composite or hardwood decking
- Built-in seating or planters
- Pergola or roof
- Lighting
- Permits
Based on a standard 200 sq ft pressure-treated wood deck.
🧮Estimate Your Cost
InteractiveEstimated Cost
US$7,472 — US$11,208
Based on 8 sources and market data for San Francisco. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
US$21,149
Today
US$22,101
Deck Building in San Francisco is ↑ 4.5% compared to roughly a year ago — about US$952 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Deck Build Contractors in San Francisco
Verified providersMares & Dow Construction & Skylights Inc.
1155 Ellis St #4, San Francisco, CA 94109, USA
23 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
Yes, in San Francisco, any deck that is more than 18 inches above grade or attached to the house requires a building permit from the Department of Building Inspection (DBI). Decks over 3 feet also require Planning Department review.
Permit fees typically range from $300 to $1,800 depending on the project's valuation and complexity. Additional plan review services can be billed at rates up to $399 per hour for complex designs.
Due to 'Karl the Fog' and high moisture, composite decking (like Trex or AZEK) is highly recommended as it resists rot and warping better than wood. However, local Redwood remains a popular high-end choice for its natural aesthetics, though it requires annual sealing.
Building on San Francisco's steep terrain can increase costs by 30% to 50% due to the need for deeper footings, structural engineering, and specialized equipment to navigate narrow streets and limited site access.
A professionally built deck in San Francisco offers one of the highest returns on investment for home improvements, currently estimated at approximately 83% due to the high value placed on usable outdoor living space.
📊Our Methodology
How we collect dataAggregated from 5+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 2 weeks ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.