Deck & Patio Cost in Southern California (2026)
A mid-size deck & patio typically runs $9k–$25k at the LA County baseline ($28–$65 per sq ft for deck and $12–$40 per sq ft for patio). Small projects start around $4k; large or high-end work can reach $55k or more.
Pricing varies across Southern California — Orange County runs a bit above the LA baseline and San Bernardino County below. Compare by county and city below.
Deck & Patio Cost by Size
Southern California baseline ranges (LA County = 1.0× baseline). Individual counties and cities vary — see below.
| Size | Type | Range | Low | High |
|---|---|---|---|---|
| Small | Patio or small deck | 100–200 sq ft | $4k | $10k |
| Medium | Deck or covered patio | 250–450 sq ft | $9k | $25k |
| Large | Multi-level or pergola + patio | 500+ sq ft | $22k | $55k |
Deck & Patio Cost by City
Los Angeles County
Orange County
San Bernardino County
What Affects Deck & Patio Cost?
- Material (concrete vs pavers vs composite deck)
- Permit (decks over 30" need one)
- Cover or pergola
- Drainage
- Hillside / sloped site
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