Los Angeles County

Home permits and project costs in Los Angeles, CA

LADBS plan check, seismic retrofit rules and wildfire-zone material requirements shape most exterior and structural projects inside city limits.

Verified August 2026

Local cost index

+32%

vs national average

Permit fee index

+45%

vs national baseline

Population

3,820,914

Homeownership

37%

Do you need a permit in Los Angeles?

For most structural work, yes

Los Angeles enforces california residential code (title 24, part 2.5) plus the title 24 energy standards through Los Angeles 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 Los Angeles

National baselines adjusted by the local labor and materials index.

Project	Typical cost	Permit	Deep pages
Roof Replacement	$14,300 – $48,300	required	Cost·Permit
AC Replacement	$7,300 – $21,800	required	Cost·Permit
Fence Installation	$3,400 – $15,400	usually required	Cost·Permit
Water Heater Replacement	$1,700 – $7,800	required	Cost·Permit
Pool Installation	$55,800 – $168,800	required	Cost·Permit
Window Replacement	$10,900 – $49,500	required	Cost·Permit
Electrical Panel Replacement	$2,800 – $9,900	required	Cost·Permit
Generator Installation	$9,400 – $32,000	required	Cost·Permit
Solar Panel Installation	$20,700 – $66,400	required	Cost·Permit
Kitchen Remodel	$24,100 – $123,200	conditional	Cost·Permit
Bathroom Remodel	$12,200 – $56,700	conditional	Cost·Permit
Driveway Replacement	$5,900 – $26,800	usually required	Cost·Permit
Paver Patio & Walkway	$4,800 – $21,900	conditional	Cost·Permit
Deck Construction	$7,900 – $40,300	required	Cost·Permit
Shed Installation	$2,500 – $16,400	conditional	Cost·Permit
Whole-House Repipe	$6,600 – $23,400	required	Cost·Permit
EV Charger Installation	$1,200 – $6,100	required	Cost·Permit
Hurricane Shutter Installation	$4,800 – $27,000	required	Cost·Permit
Pool Enclosure / Screen Cage	$13,400 – $62,500	required	Cost·Permit
Septic System Replacement	$11,100 – $41,500	required	Cost·Permit
Impact Window Installation	$13,300 – $62,200	required	Cost·Permit
Exterior Door Replacement	$1,300 – $9,500	usually required	Cost·Permit
Garage Door Replacement	$2,100 – $11,100	required	Cost·Permit
Siding Installation	$11,500 – $54,800	usually required	Cost·Permit
Stucco Repair	$1,200 – $21,800	conditional	Cost·Permit
Soffit & Fascia Replacement	$2,600 – $15,900	conditional	Cost·Permit
Gutter Installation	$1,200 – $8,700	rarely required	Cost·Permit
Roof Repair	$600 – $7,100	conditional	Cost·Permit
Flat Roof Replacement	$9,000 – $42,000	required	Cost·Permit
Attic Insulation	$1,500 – $9,700	rarely required	Cost·Permit
Ductwork Replacement	$3,500 – $16,900	required	Cost·Permit
Mini Split Installation	$3,400 – $17,600	required	Cost·Permit
Flooring Installation	$3,300 – $26,400	rarely required	Cost·Permit
Tile Installation	$2,400 – $21,500	rarely required	Cost·Permit
Interior Painting	$2,100 – $13,100	rarely required	Cost·Permit
Exterior Painting	$3,800 – $20,600	rarely required	Cost·Permit
Drywall Repair	$500 – $6,200	rarely required	Cost·Permit
Kitchen Cabinet Refacing	$6,000 – $26,800	rarely required	Cost·Permit
Countertop Replacement	$2,800 – $15,500	rarely required	Cost·Permit
Tub to Shower Conversion	$5,000 – $22,700	usually required	Cost·Permit
Sod Installation	$1,200 – $9,200	rarely required	Cost·Permit
Irrigation System Installation	$3,000 – $13,700	conditional	Cost·Permit
Tree Removal	$600 – $7,800	conditional	Cost·Permit
Outdoor Kitchen	$8,400 – $63,400	usually required	Cost·Permit
Seawall Repair	$12,100 – $143,700	required	Cost·Permit
Dock Construction	$13,600 – $128,600	required	Cost·Permit
Well Installation	$8,100 – $37,000	required	Cost·Permit
Mold Remediation	$2,100 – $21,400	conditional	Cost·Permit
Water Softener Installation	$1,700 – $9,200	usually required	Cost·Permit
Home Addition	$67,500 – $420,300	required	Cost·Permit

Los Angeles permitting basics

Jurisdiction	Los Angeles, Los Angeles 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.