irvine
Accessory Dwelling Units

Below we have provided links to individual city municipal codes regarding accessory dwelling units. This information is deemed reliable, but is not guaranteed and is provided for reference purposes only. Please be sure to contact the city to confirm the information provided.

If you have updates to the information listed here, please contact us!

ADU: Aliso Viejo

Standards for accessory dwelling units are detailed in chapter 15 of the city’s municipal code. For more information we suggest contacting city staff.

Building and Safety Department – City of Aliso Viejo
12 Journey, Suite 100
Aliso Viejo, CA 92656
949-425-2540
Inspection Request Hotline: 949-425-2545

ADU: Anaheim

Standards for accessory dwelling units are detailed in chapter 18 of the city’s municipal code. For more information we suggest contacting city staff.

Planning & Building Department
200 S Anaheim Boulevard, 1st Floor 
Anaheim, CA 92805
714-765-4311

Building Division: 714 765-5153
Code Enforcement: 714 765-5158
Planning Services: 714 765-5139

ADU: Brea

Standards for accessory dwelling units are detailed in chapter 20 of the city’s municipal code. For more information we suggest contacting city staff.

Community Development Department
1 Civic Center Circle
Brea, CA 92821
714-990-7689

ADU: Buena Park

Standards for accessory dwelling units are detailed in chapter 19 of the city’s municipal code. For more information we suggest contacting city staff.

Quick Reference Guide

Community Development Department 
6650 Beach Boulevard, First Floor 
Buena Park, CA 90622
Building Division: 714-562-3636
Code Enforcement Division: 714-562-3642
Planning Division: 714-562-3620

ADU: Costa Mesa

Standards for accessory dwelling units are detailed in title 13 of the city’s municipal code. For more information we suggest contacting city staff.

Development Services Department – City of Costa Mesa 
77 Fair Drive
Costa Mesa, CA 92626
714-754-5000

ADU: Cypress

Standards for accessory dwelling units are detailed in the city’s municipal code. For more information we suggest contacting city staff.

Community Development Department

Building: 714-229-6730
Planning: 714-229-6720
Successor Agency: 714-229-6728
Community Development Department: cdd@cypressca.org
Code Enforcement: 714-229-6726

Code Enforcement Service Request
Economic Development: 714-229-6720

ADU: Dana Point

Standards for accessory dwelling units are detailed on the city’s website. For more information we suggest contacting city staff.

Community Development Department – City of Dana Point
33282 Golden Lantern
Dana Point, CA 92629
949-248-3500

ADU: Fountain Valley

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Housing & Community Development – City of Fountain Valley 
10200 Slater Avenue
Fountain Valley, CA 92708
714-593-4428

ADU: Fullerton

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Community Development Department – City of Fullerton
303 W. Commonwealth Ave.
Fullerton, CA 92832
General - Building Division: 714-738-6541

ADU: Garden Grove

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Community and Economic Development Department – City of Garden Grove
11222 Acacia Parkway
Garden Grove, CA 92840
714-741-5000

ADU: Huntington Beach

Standards for accessory dwelling units are detailed under title 23 of the city’s zoning code. For more information, we suggest contacting city staff.

Department of Community Development – City of Huntington Beach 
City of Huntington Beach
2000 Main Street
Huntington Beach, CA 92648
714-536-5511

ADU: La Habra

Standards for accessory dwelling units are detailed in title 18 of the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of La Habra
110 E La Habra Boulevard
La Habra, CA 90631
562-383-4100

ADU: Laguna Beach

Standards for accessory dwelling units are detailed in chapter 25 of the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Laguna Beach
505 Forest Avenue
Laguna Beach, California 92651
949-497-0712

ADU: Laguna Hills

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Community Development Department – City of Laguna Hills
24035 El Toro Road
Laguna Hills, CA 92653
949-707-2670

ADU: Laguna Niguel

Standards for accessory dwelling units are detailed in section 9 of the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Laguna Niguel
30111 Crown Valley Pkwy.
Laguna Niguel, CA 92677

949-362-4300

ADU: Laguna Woods

Standards for accessory dwelling units are detailed in section 13 of the city’s municipal code. For more information we suggest contacting city staff. Laguna Woods Village is a community that makes up a majority of the residences in the city. We also suggest contacting them directly for more details.

City of Laguna Woods
24264 El Toro Road
Laguna Woods, CA 92637
949-639-0500

Laguna Woods Village 
24351 El Toro Rd
Laguna Woods, CA 92637
949-597-4600

ADU: Lake Forest

Standards for accessory dwelling units are detailed in title 9 of the city’s municipal code. For more information, we suggest contacting city staff.

Planning & Development Department – City if Lake Forest
25550 Commercentre Drive, Suite 100
Lake Forest, CA, 92630
949-461-3491

ADU: Lakewood

We suggest contacting the city’s Community Development Department regarding accessory dwelling units.

Community Development Department – City of Lakewood
5050 Clark Avenue
Lakewood, CA 90712
562-866-9771 ext. 2350

ADU: Los Alamitos

Standards for accessory dwelling units are detailed in chapter 17 of the city’s municipal code. For more information, we suggest contacting city staff.

Development Services – City of Los Alamitos
3191 Katella Avenue
Los Alamitos, CA 90720
562-431-3538

ADU: Mission Viejo

Standards for accessory dwelling units are detail in the city’s municipal code. For more information, we suggest contacting city staff

Community Development Department – City of Mission Viejo

200 Civic Center
Mission Viejo, CA 92691
cd@cityofmissionviejo.org

Planning: 949-470-3053
Code Enforcement: 949-470-3055
Building: 949-470-3054

ADU: Newport Beach

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Community Development Department – City of Newport Beach 
100 Civic Center Drive
Newport Beach, CA 92660
949-644-3309

ADU: Orange

Standards for accessory dwelling units are detailed in the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Orange
300 E. Chapman Ave.
Orange, CA 92866
714-744-7220

ADU: Placentia

Standards for accessory dwelling units are detailed in the city’s municipal code. For more information, we suggest contacting city staff.

Development Services – City of Placentia 
401 E. Chapman Ave.
Placentia, CA 92870
714-993-8124

ADU: Rancho Santa Margarita

Standards for accessory dwelling units are detailed in the city’s municipal code. For more information, we suggest contacting city staff.

Development Services Department – City of Rancho Santa Margarita
22112 El Paseo
Rancho Santa Margarita, CA 92688
949-635-1816

ADU: San Clemente

Standards for accessory dwelling units are detailed in section 17 of the city’s municipal code. For more information, we suggest contacting city staff.

Building Department – City of San Clemente
910 Calle Negocio, Ste. 100
San Clemente, CA 92673
949-361-8200

ADU: San Juan Capistrano

Standards for accessory dwelling units are detailed in section 9 of the city’s municipal code. For more information, we suggest contacting city staff.

Development Services – City of San Juan Capistrano
32400 Paseo Adelanto
San Juan Capistrano, CA 92675
949-493-1171

ADU: Santa Ana

Standards for accessory dwelling units are detailed on the city’s website. For more information, we suggest contacting city staff.

Planning and Building Agency – City of Santa Ana
20 Civic Center Plaza
Santa Ana, CA 92701
714-667-2700

ADU: Seal Beach

Standards for accessory dwelling units are detailed in section 11 of the city’s municipal code. For more information, we suggest contacting city staff.

Department of Community Development – City of Seal Beach
211 Eighth Street
Seal Beach, CA 90740
562-431-2527

ADU: Stanton

Standards for accessory dwelling units are detailed in the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Stanton
7800 Katella Avenue
Stanton, CA 90680
714-890-4286

ADU: Tustin

Standards for accessory dwelling units are detailed throughout the city’s municipal code. For more information we suggest contacting city staff.

Community Development Department – City of Tustin
300 Centennial Way
Tustin, CA 92780
714-573-3106

ADU: Villa Park

Standards for accessory dwelling units are detailed in article 23 of the city’s municipal code. For more information, we suggest contacting city staff.

Building and Safety Department – City of Villa Park
17855 Santiago Boulevard 
Villa Park, California 92861
714-998-1500

ADU: Westminster

Standards for accessory dwelling units are detailed in section 17 of the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Westminster
8200 Westminster Blvd.
Westminster, CA 92683
714-898-3311

ADU: Yorba Linda

Standards for accessory dwelling units are detailed in article 9 of the city’s municipal code. For more information, we suggest contacting city staff.

Community Development Department – City of Yorba Linda
4845 Casa Loma Avenue
Yorba Linda, CA 92886
714-961-7130