California Construction Statistics 2026

29,041

ADU permits issued statewide (2024)

More than 5× the 2018 baseline; ADUs now account for ~17% of all new residential units permitted in California.

Source: California HCD, 2024 Annual Progress Report

8,927

ADU permits issued in LA County (2024)

City of LA alone permitted ~6,400. LADBS ministerial pathway compresses the issuance timeline to 8–12 weeks for complete submittals.

Source: LADBS Annual ADU Report

3,612

ADU permits in the 9-county Bay Area (2024)

San Jose, Oakland, and Berkeley account for ~62%; SF runs lower despite high demand due to lot-coverage and rear-yard constraints.

Source: ABAG Regional Housing Needs tracking

60 days

Statutory ADU plan-check ceiling

Gov. Code §65852.2 caps ministerial ADU review at 60 calendar days from complete submittal. Cities exceeding this risk auto-approval.

Source: California Government Code §65852.2

8–14 weeks

Typical LADBS ADU plan check (real-world)

Statutory 60 days assumes a complete submittal; incomplete sets trigger correction cycles that extend total wall-clock time.

Source: Internal LADBS tracking (n=87 jobs, 2023–2025)

60–120 days

PG&E service-planning queue (2026)

Service upgrades for new ADUs in PG&E territory routinely outpace the building-permit timeline by 1–2 months. File week one.

Source: PG&E Rule 16 / Service Planning Application data

$220–$290/sqft

Detached ADU installed cost, LA (2026)

Includes design, permits, foundation, framing, MEP, finishes, certificate of occupancy. Excludes lot work beyond 50' of utility runs.

Source: Alpha Dream Construction internal job tracking

$240–$320/sqft

Detached ADU installed cost, Bay Area (2026)

Bay labor premium of 22–30% over LA drives the spread. Hillside parcels push the top of band.

Source: Alpha Dream Construction internal job tracking

+11.4%

Year-over-year residential construction cost (CA, 2025→2026)

Driven by lumber recovery (+8%), copper (+14%), and licensed-trade labor (+9%). Outpacing CPI by 4.1 percentage points.

Source: NAHB Construction Cost Survey + CSLB advisories

19.5–42%

Soft costs as % of hard construction cost

Design + engineering + permits + utility upgrades + contingency. A $300K hard-cost ADU typically carries $58K–$126K additional soft cost.

Source: California Construction Cost Index 2026

1.1%

Annual property-tax impact per dollar of new construction

Only the new value is reassessed under Prop 13; existing house keeps its base. A $300K ADU adds ~$3,300/yr in tax.

Source: California Board of Equalization, Prop 13 guidance

$11,000

Median seismic-retrofit cost (single-family)

California Earthquake Authority Brace + Bolt subsidy covers up to $3,000; remaining gap is the owner's. Required for many pre-1980 raised-foundation homes during a remodel.

Source: CEA Brace + Bolt program data

$78–$118/hr

Journeyman carpenter, Bay Area (loaded)

Includes payroll burden, tool allocation, small-overhead recovery. LA equivalent runs $62–$92/hr.

Source: CSLB prevailing-wage advisories Q1 2026

$95–$145/hr

Journeyman electrician, Bay Area (loaded)

LA equivalent $78–$118/hr. Panel-upgrade jobs typically 6–14 labor-hours including utility coordination.

Source: CSLB prevailing-wage advisories Q1 2026

1,485,420

Active California contractor licenses (CSLB, 2026)

Of these, ~287K hold a B General Building classification. Verify any contractor's status at cslb.ca.gov before signing.

Source: California Contractors State License Board

$1.5M

Statutory contract limit without a B license (unlicensed)

Performing work over $500 without a license is a misdemeanor under B&P Code §7028. Always verify license + classification.

Source: California Business & Professions Code §7028

5.8 months

Average detached-ADU build duration (CA, 2025)

Mobilization to final inspection. Garage conversions average 3.2 months.

Source: Alpha Dream Construction project ledger

9.2 months

Average whole-home remodel duration (CA, 2025)

Includes 4–8 month resident relocation window. Kitchen-only jobs average 8–12 weeks.

Source: Alpha Dream Construction project ledger

23%

Of projects encountering a foundation surprise

Pre-1960 California homes show hidden foundation issues at scope-of-work boundaries in ~1 in 4 cases.

Source: Internal job tracking, n=312 (2022–2025)

12–16%

Recommended owner contingency

Reduces change-order arguments dramatically. <8% reserves correlate with disputed change orders 3.4× more often.

Source: California Construction Cost Index 2026