California ADU & Building Permit Directory

Address

201 N Figueroa St, Los Angeles, CA 90012

Phone

(213) 482-0000

Portal

Official site →

ADU plan check

8–14 weeks

Permit fee (typical)

$7,500–$13,500

Pre-approved plans

Yes

LADBS Standard Plan Program waives full plan check for approved designs.

Address

455 N Rexford Dr, Beverly Hills, CA 90210

Phone

(310) 285-1141

Portal

Official site →

ADU plan check

10–16 weeks

Permit fee (typical)

$9,500–$15,000

Pre-approved plans

No

Hillside overlays trigger geotech + design review on most lots above Sunset.

Address

1685 Main St, Santa Monica, CA 90401

Phone

(310) 458-8355

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$8,500–$12,500

Pre-approved plans

Limited

Coastal overlay west of Lincoln triggers California Coastal Commission review.

Address

175 N Garfield Ave, Pasadena, CA 91101

Phone

(626) 744-4200

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$7,200–$11,800

Pre-approved plans

Yes

Landmark district overlay (Bungalow Heaven, Garfield Heights) adds historic review.

Address

411 W Ocean Blvd, Long Beach, CA 90802

Phone

(562) 570-6194

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$6,800–$10,500

Pre-approved plans

Yes

Coastal zone permits (Belmont Shore, Naples) routed through CCC.

Address

150 N Third St, Burbank, CA 91502

Phone

(818) 238-5250

Portal

Official site →

ADU plan check

8–11 weeks

Permit fee (typical)

$6,500–$10,000

Pre-approved plans

Yes

BWP electric panel upgrade often required for detached ADU > 600 sq ft.

Address

633 E Broadway, Glendale, CA 91206

Phone

(818) 548-3200

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$7,000–$11,000

Pre-approved plans

Limited

GWP service upgrades have a 6–10 week queue separate from plan check.

Address

9770 Culver Blvd, Culver City, CA 90232

Phone

(310) 253-5700

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$6,800–$10,800

Pre-approved plans

Yes

Allows JADUs on R1 lots without owner-occupancy until 2030 (per state law).

Address

8300 Santa Monica Blvd, West Hollywood, CA 90069

Phone

(323) 848-6475

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$8,000–$12,000

Pre-approved plans

No

Most parcels under historic resource survey — design review nearly universal.

Address

3031 Torrance Blvd, Torrance, CA 90503

Phone

(310) 618-5990

Portal

Official site →

ADU plan check

7–11 weeks

Permit fee (typical)

$5,800–$9,500

Pre-approved plans

Yes

Pre-checked plans available for 400 / 600 / 800 sq ft footprints.

Address

1 W Manchester Blvd, Inglewood, CA 90301

Phone

(310) 412-5230

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$6,200–$9,800

Pre-approved plans

No

ECP (Equity Concept Plan) overlay near SoFi triggers extra design review.

Address

1400 Highland Ave, Manhattan Beach, CA 90266

Phone

(310) 802-5500

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$9,000–$13,500

Pre-approved plans

No

Coastal Commission appealable zone west of Highland.

Address

350 Main St, El Segundo, CA 90245

Phone

(310) 524-2380

Portal

Official site →

ADU plan check

7–10 weeks

Permit fee (typical)

$5,500–$8,800

Pre-approved plans

Limited

LAX 65 CNEL contour triggers noise insulation upgrades for habitable space.

Address

205 S Willowbrook Ave, Compton, CA 90220

Phone

(310) 605-5532

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$6,000–$9,500

Pre-approved plans

No

Lots near Compton Creek may require LACFCD setback verification.

Address

49 South Van Ness Ave, San Francisco, CA 94103

Phone

(628) 652-3200

Portal

Official site →

ADU plan check

14–24 weeks

Permit fee (typical)

$11,500–$18,500

Pre-approved plans

No

Pre-application meeting recommended; soft-story retrofit often bundled.

Address

250 Frank H Ogawa Plaza, Oakland, CA 94612

Phone

(510) 238-3911

Portal

Official site →

ADU plan check

12–18 weeks

Permit fee (typical)

$8,500–$13,500

Pre-approved plans

Limited

Hayward fault setbacks trigger geotech on east-of-580 parcels.

Address

1947 Center St, Berkeley, CA 94704

Phone

(510) 981-7400

Portal

Official site →

ADU plan check

14–20 weeks

Permit fee (typical)

$9,500–$14,500

Pre-approved plans

No

Hillside Overlay (Berkeley Hills) requires neighborhood notification.

Address

200 E Santa Clara St, San Jose, CA 95113

Phone

(408) 535-3555

Portal

Official site →

ADU plan check

10–16 weeks

Permit fee (typical)

$8,000–$13,000

Pre-approved plans

Yes

Master ADU Program offers fast-track approval (4 weeks) for approved designs.

Address

250 Hamilton Ave, Palo Alto, CA 94301

Phone

(650) 329-2496

Portal

Official site →

ADU plan check

12–18 weeks

Permit fee (typical)

$10,500–$15,500

Pre-approved plans

Limited

Tree protection ordinance covers all heritage oaks > 11.5 in. DBH.

Address

500 Castro St, Mountain View, CA 94041

Phone

(650) 903-6306

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$8,500–$12,500

Pre-approved plans

Yes

R3 conversions to multi-ADU clusters reviewed under SB 9 protocol.

Address

456 W Olive Ave, Sunnyvale, CA 94086

Phone

(408) 730-7444

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$7,800–$11,800

Pre-approved plans

Yes

SMUD-style city utility — coordinate panel work through City of Sunnyvale.

Address

39550 Liberty St, Fremont, CA 94538

Phone

(510) 494-4460

Portal

Official site →

ADU plan check

10–15 weeks

Permit fee (typical)

$8,200–$12,800

Pre-approved plans

Limited

Niles Canyon hillside parcels require Alquist-Priolo zone review.

Address

1666 N Main St, Walnut Creek, CA 94596

Phone

(925) 943-5834

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$7,500–$11,500

Pre-approved plans

Yes

Pre-approved Plan Library covers 6 detached ADU designs (500–1,200 sq ft).

Address

1017 Middlefield Rd, Redwood City, CA 94063

Phone

(650) 780-7380

Portal

Official site →

ADU plan check

11–16 weeks

Permit fee (typical)

$8,500–$13,000

Pre-approved plans

No

Bayfront FEMA flood zones (Redwood Shores) require freeboard + venting.

Address

777 B Street, Hayward, CA 94541

Phone

(510) 583-4200

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$6,800–$10,500

Pre-approved plans

Limited

Hayward fault zone Alquist-Priolo setbacks reviewed at site plan.

Address

1 Civic Center Plaza, Irvine, CA 92606

Phone

(949) 724-6313

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$6,800–$10,500

Pre-approved plans

Yes

Most HOAs in master-planned villages require concurrent architectural review.

Address

200 S Anaheim Blvd, Anaheim, CA 92805

Phone

(714) 765-5139

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$6,500–$10,000

Pre-approved plans

Yes

Anaheim Public Utilities handles all electric service upgrades in-house.

Address

100 Civic Center Dr, Newport Beach, CA 92660

Phone

(949) 644-3204

Portal

Official site →

ADU plan check

12–18 weeks

Permit fee (typical)

$9,500–$14,500

Pre-approved plans

No

Local Coastal Program governs almost every parcel west of the 73.

Address

20 Civic Center Plaza, Santa Ana, CA 92701

Phone

(714) 647-5803

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$6,800–$10,500

Pre-approved plans

Limited

Logan and French Park historic districts trigger HRC review for any new structure.

Address

1222 First Ave, San Diego, CA 92101

Phone

(619) 446-5000

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$7,500–$12,000

Pre-approved plans

Yes

Companion Unit Bonus Program (Tier 3) allows up to 4 ADUs on a single R1 lot.

Address

276 Fourth Ave, Chula Vista, CA 91910

Phone

(619) 691-5101

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$6,500–$10,000

Pre-approved plans

Yes

Otay Ranch master plan HOAs run a parallel design review.

Address

505 S Vulcan Ave, Encinitas, CA 92024

Phone

(760) 633-2710

Portal

Official site →

ADU plan check

12–16 weeks

Permit fee (typical)

$8,500–$13,000

Pre-approved plans

Limited

Coastal zone west of I-5 routed through Coastal Commission for appealable lots.

Address

3900 Main St, Riverside, CA 92522

Phone

(951) 826-5800

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$5,800–$9,500

Pre-approved plans

Yes

Riverside Public Utilities handles service drops directly — coordinate early.

Address

201 N E St, San Bernardino, CA 92401

Phone

(909) 384-5057

Portal

Official site →

ADU plan check

8–12 weeks

Permit fee (typical)

$5,500–$9,000

Pre-approved plans

No

San Andreas fault setback review required for all north-of-210 parcels.

Address

303 E B St, Ontario, CA 91764

Phone

(909) 395-2036

Portal

Official site →

ADU plan check

7–11 weeks

Permit fee (typical)

$5,200–$8,800

Pre-approved plans

Yes

ONT noise contour overlays trigger STC-rated assemblies for habitable space.

Address

630 Garden St, Santa Barbara, CA 93101

Phone

(805) 564-5485

Portal

Official site →

ADU plan check

14–20 weeks

Permit fee (typical)

$10,500–$15,500

Pre-approved plans

No

Single Family Design Board reviews every ADU; Spanish vernacular strongly preferred.

Address

501 Poli St, Ventura, CA 93001

Phone

(805) 654-7869

Portal

Official site →

ADU plan check

10–14 weeks

Permit fee (typical)

$7,500–$11,500

Pre-approved plans

Limited

Hillside Management Area (north of Foothill) adds slope-density review.

Address

300 Richards Blvd, Sacramento, CA 95811

Phone

(916) 808-5318

Portal

Official site →

ADU plan check

9–13 weeks

Permit fee (typical)

$6,800–$10,500

Pre-approved plans

Yes

Pre-approved ADU plan catalog waives architectural plan check entirely.