California density playbook
SB-684
Small-home subdivisions on multi-family lots
Up to ten detached small homes on a multi-family-zoned lot, ministerial approval, no discretionary review.
In plain English
What it actually does.
SB-684 created a fast track for for-sale small-home subdivisions on multi-family parcels. Up to 10 units, each on its own deeded parcel, with objective standards replacing discretionary design review. Pairs powerfully with SB-1123 for vacant urban lots.
How it applies
On the ground, by city.
01 / City
Long Beach
Active applications already in review.
02 / City
Los Angeles
Eligible across most R-2 / R-3 zones.
03 / City
Newport Beach
Limited multi-family inventory; coastal review applies.
Keep reading
Other laws in the playbook.
Run the numbers
See what SB-684 unlocks on your lot.
Drop in your address, lot size, and zoning. The calculator returns a unit count, the pathway, and the warnings worth knowing.
Open the lot calculator