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The SB 9 city guide
Sunnyvale
The SB 9 city guide
Sunnyvale
unincorporated
D
Grade
very friendly
very friendly
friendly
friendly
restrictive
very restrictive
We've given Sunnyvale a D for its very restrictive approach to the implementation of SB 9, which includes many regulations.
SB 9 is a state bill that was created to address California's housing crisis. It allows Californians more flexibility with their urban property than they've ever had before.
Last updated:
5/5/2022
If you feel this grade was given incorrectly or it is outdated, please contact us
SB 9 is a state bill that was created to address California's housing crisis. It allows Californians more flexibility with their urban property than they've ever had before. Read more about SB 9 here.
What can I build?
You have three options for an SB 9 project
Option 1: Lot Split
Divide your lot into two parcels; building on the new lot is allowed
Your lot must be at least 2,400 sqft and can be divided 50/50 or 60/40
sb 9 standard


Option 2: Two-Units
Keep your parcel as is, and add
up to 2 units total
sb 9 standard
friendly
very friendly
restrictive
very restrictive


Option 3: Lot Split & Two-Units
A mix of the above: divide your parcel, and add
up to 4 units total
sb 9 standard
friendly
very friendly
restrictive
very restrictive


Building max. size
In
Sunnyvale
, new units can be up to
sq ft. This is half the size of the median single family home in California.
very Restrictive
📐
California median home size
1,700 sq ft
📐
Sunnyvale
SB 9 Limit
sq ft
Where can I build?
You can build in single-family residential zones
,
and in R2 multi-family zoning districts.
sb 9 standard
friendly
very friendly
restrictive
very restrictive
Places where you can’t build
May require additional permits
Buildings that can't be demolished
Renting & Selling
For all development options, resulting units must be residential use only
sb 9 standard
Renting
Requirements
Requirements
Selling Requirements
Additional Requirements
Here are a few more restrictions and requirements that you should keep in mind when pursuing an SB 9 project in
Sunnyvale
.
Want to learn more about Homestead’s grading system? Read our methodology.

Download Report
Here’s everything we did not cover
Want to learn more about Homestead’s grading system?
Read our guidelines
Read our guidelines
Other cities in
Santa Clara County
Other counties
Santa Clara County
More about
Sunnyvale
Sunnyvale is a great place for families and young professionals. People who call this San José suburb their home love the area for its exceptional public schools, vibrant downtown nightlife, beautiful hiking trails, and friendly small-town feel. Visitors enjoy shopping and listening to music at the weekend farmer’s market, exploring the Bay Trail, and admiring the 100+ public art installations throughout the city. Mike most of Santa Clara County, Sunnyvale is a very expensive place to live. SB 9 urban lot splits and duplexes can help by offering more affordable alternatives to large homes on sprawling lots.
Check eligibility
Enter your address in California, and find out if your property is eligible for SB 9
