Santa Clara County

Home permits and project costs in San Jose, CA

The highest sustained trade labor rates in the country, plus seismic and electrification requirements that add scope to remodels.

Verified August 2026

Local cost index

+45%

vs national average

Permit fee index

+50%

vs national baseline

Population

969,655

Homeownership

56%

Do you need a permit in San Jose?

For most structural work, yes

San Jose enforces california residential code (title 24, part 2.5) plus the title 24 energy standards through Santa Clara County. Roofing, electrical, plumbing, structural, pools and most exterior additions require a permit and inspection. Cosmetic work — paint, flooring, cabinet swaps — generally does not.

Project costs in San Jose

National baselines adjusted by the local labor and materials index.

Project	Typical cost	Permit	Deep pages
Roof Replacement	$15,900 – $53,400	required	Cost·Permit
AC Replacement	$8,000 – $23,900	required	Cost·Permit
Fence Installation	$3,700 – $17,000	usually required	Cost·Permit
Water Heater Replacement	$1,900 – $8,700	required	Cost·Permit
Pool Installation	$61,800 – $186,900	required	Cost·Permit
Window Replacement	$12,000 – $54,300	required	Cost·Permit
Electrical Panel Replacement	$3,100 – $11,000	required	Cost·Permit
Generator Installation	$10,400 – $35,400	required	Cost·Permit
Solar Panel Installation	$22,600 – $72,300	required	Cost·Permit
Kitchen Remodel	$26,300 – $134,600	conditional	Cost·Permit
Bathroom Remodel	$13,300 – $62,100	conditional	Cost·Permit
Driveway Replacement	$6,500 – $29,500	usually required	Cost·Permit
Paver Patio & Walkway	$5,300 – $24,100	conditional	Cost·Permit
Deck Construction	$8,700 – $44,500	required	Cost·Permit
Shed Installation	$2,700 – $18,000	conditional	Cost·Permit
Whole-House Repipe	$7,300 – $26,100	required	Cost·Permit
EV Charger Installation	$1,300 – $6,700	required	Cost·Permit
Hurricane Shutter Installation	$5,300 – $29,900	required	Cost·Permit
Pool Enclosure / Screen Cage	$14,800 – $69,300	required	Cost·Permit
Septic System Replacement	$12,300 – $45,900	required	Cost·Permit
Impact Window Installation	$14,600 – $68,300	required	Cost·Permit
Exterior Door Replacement	$1,500 – $10,500	usually required	Cost·Permit
Garage Door Replacement	$2,300 – $12,300	required	Cost·Permit
Siding Installation	$12,700 – $60,400	usually required	Cost·Permit
Stucco Repair	$1,300 – $23,900	conditional	Cost·Permit
Soffit & Fascia Replacement	$2,900 – $17,500	conditional	Cost·Permit
Gutter Installation	$1,300 – $9,500	rarely required	Cost·Permit
Roof Repair	$700 – $7,800	conditional	Cost·Permit
Flat Roof Replacement	$10,000 – $46,500	required	Cost·Permit
Attic Insulation	$1,700 – $10,500	rarely required	Cost·Permit
Ductwork Replacement	$3,900 – $18,500	required	Cost·Permit
Mini Split Installation	$3,700 – $19,300	required	Cost·Permit
Flooring Installation	$3,600 – $28,900	rarely required	Cost·Permit
Tile Installation	$2,700 – $23,700	rarely required	Cost·Permit
Interior Painting	$2,300 – $14,500	rarely required	Cost·Permit
Exterior Painting	$4,200 – $22,800	rarely required	Cost·Permit
Drywall Repair	$500 – $6,900	rarely required	Cost·Permit
Kitchen Cabinet Refacing	$6,600 – $29,500	rarely required	Cost·Permit
Countertop Replacement	$3,100 – $16,800	rarely required	Cost·Permit
Tub to Shower Conversion	$5,500 – $25,000	usually required	Cost·Permit
Sod Installation	$1,300 – $10,000	rarely required	Cost·Permit
Irrigation System Installation	$3,300 – $15,000	conditional	Cost·Permit
Tree Removal	$700 – $8,700	conditional	Cost·Permit
Outdoor Kitchen	$9,300 – $69,800	usually required	Cost·Permit
Seawall Repair	$13,400 – $159,600	required	Cost·Permit
Dock Construction	$15,100 – $142,800	required	Cost·Permit
Well Installation	$9,000 – $41,000	required	Cost·Permit
Mold Remediation	$2,400 – $23,700	conditional	Cost·Permit
Water Softener Installation	$1,900 – $10,200	usually required	Cost·Permit
Home Addition	$74,800 – $465,400	required	Cost·Permit

San Jose permitting basics

Jurisdiction	San Jose, Santa Clara County
Building department	Official site
Permit portal	Apply online
Owner-builder permits	Owner-builder permits allowed, with strict limits when the home is sold within a year
Contractor verification	Verify any license with California Building Standards Commission before signing

Sources

Sources & verification

Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.