We service Redwood City, CA and surrounding areas including zip codes 94061, 94062, 94063, 94064, 94065, and 94070.


ADU in Redwood City, CA

Families find it more difficult to live close to one another as the world gets more industrialized and urbanized. Families that desire to keep strong ties with their loved ones may find this to be a significant difficulty. ADUs (accessory dwelling units) may provide a remedy, nevertheless. ADUs may be attached to or separate from the main house on the site. They can serve as a residence for an aging family member, a young adult just setting out on their own, or even as a rental property. The best part is that they make it possible for families to coexist side by side without compromising on privacy or individuality.

ADUs are frequently used as mother-in-law flats, guest quarters, or rental properties. They can also be a fantastic option for families who need more space but wish to remain in their current location. For instance, a family with young children might utilize an ADU as a playroom or an area for homeschooling. An ADU can be a fantastic alternative for empty-nesters who wish to downsize but still have space for out-of-town visitors and family. Families in need of more space may find that ADUs are an excellent alternative. For instance, an ADU could be converted into a quiet getaway for mom. Or, it can be transformed into a “man cave,” where dad can unwind. ADUs are a popular choice for families that wish to stay connected in Redwood City, CA. 


The Construction of an ADU

Getting a high quality ADU built is no simple task. The process of planning and building an ADU in Redwood City, CA, has its challenges, but also has tremendous rewards. We endeavor to make it as simple for you as possible. Here is a brief description of how it works:

  • The first step in establishing whether your project meets the requirements for an ADU is to validate it. To ensure your property conforms to all rules, we’ll inspect it. Answer the question of what can actually be built on your property legally.
  • We’ll work with you to personalize your ADU. There are numerous pre-designed layouts available that can be used right out of the box or tweaked to your needs. There are also many interior packages to choose from, with a variety of design options.
  • Once designed, we’ll acquire your ADU permit and then start building your ADU.Our experienced craftsmen will begin ADU construction to the exact specifications.

The Acton ADU procedure is intended to be straightforward. To ensure that your ADU in Redwood City, CA, is exactly what you’ve envisioned, we’ll work directly with you at every stage. To start working on your project right now, get in touch with us!


Your ADU Contractors in Redwood City, CA

Acton ADU, operates in Redwood City, CA, as well as many other cities in the Bay Area. We have a group of knowledgeable experts who can work with you to design and construct the best ADU for your requirements. We also understand the applicable code requirements and can secure the required permissions for your project.

Adding an ADU can increase your home’s living space, potential income, and value. An ADU may be used for any purpose you can think of, such as a guest house or a home office. You might utilize additional space on your Redwood City, CA, property that would otherwise go unused by adding an ADU. Call Acton ADU right away to get started!

Questions about ADUs in Redwood City, CA? Inquire Below
  • Attached
  • Detached
  • Conversion
  • Junior

Get All the ADU Zoning & Regulation Details

CITY OR COUNTYRedwood City, California
DATE UPDATED11/30/2020
ZONINGAll single-family, mixed-use, multi-family
TYPES OF ADUSAttached, Detached, Conversion, Junior
STORIESSingle-story, Double-story
LOT SIZENo min/max but must follow zoning guidelines on lot coverage, lot must have existing or proposed single-family dwelling.
MAXIMUM ADU FLOOR AREA850 sq.ft., 1,200 sq.ft. for ADUs that meet 11A Standards on accessibility
1,000 sq.ft. for ADUs on RH or R-1 lots larger than 9,999 sq.ft.
Second story ADUs: Max 576 sq.ft. above garages
BEDROOMNo min/max.
STORAGENo min/max
KITCHENRequires separate kitchen facilities (must be a stove/oven, 220amp circuits, sink and food preserving appliance. Wet bars with countertop ovens not acceptable.)
BATHRequires separate bathroom facilities.
Note: Drainage and sewer connections should be assessed on a project by project basis.
PARKINGNo additional parking required.
SETBACKSAttached: must meet setback standards for underlying zoning district.
Detached: 4’ side and 4’ rear
Note: Fire Department regulations should be assessed on a project by project basis.
HEIGHTAttached: must meet height standards for underlying zoning district. 16’ for Attached encroaching within the rear yard setback
LOCATIONMay be attached to, within, or detached from primary dwelling
DESIGNMust be compatible with style, exterior paint, and materials of single-family dwelling on same lot.
Second-story ADUS: No balconies, second story decks or roof decks. Restrict exterior stairs facing immediately adjacent neighbors, and require opaque or clerestory windows when facing immediately adjacent side and rear neighbors.
Note: Historic Neighborhoods or Districts should be assessed on a project by project basis.
ENTRYWAYSGarage or patio doors may not be used as main entrance, unit must be accessed by a side-hinged swinging door.
RESOURCES>> Redwood City, CA City Website
>> Redwood City, CA City Housing Element Updates
>> Redwood City, CA Post Offices
SOURCE CODEImportant Note: Rules and regulations are updated and changed frequently. It’s one of our jobs to be up to speed and navigate those regulations. Let us know if our website isn’t up to date or if you have any information that could help. Cheers!


Considering an ADU in Redwood City, CA? It’s a great way to enhance living space and boost property value. With Acton ADU, you’re partnering with experts who bring your vision to life. From design to construction, we’re with you every step of the way. Reach out today to explore the possibilities.