By property
Two to four units? Add as many again
Under SB 1211 a duplex can add 2 detached ADUs and a fourplex can add 4, plus a conversion.

Your options
Side by side
The Lot Check narrows them for your property.
Options
| Option | Homes added | Time |
|---|---|---|
| Duplex | 2 detached + 1 conversion | 12-18 months |
| Triplex | 3 detached + 1 conversion | 12-18 months |
| Fourplex | 4 detached + 1 conversion | 12-18 months |
Floor plans
Plans that fit
Ready-drawn plans we adapt to your lot and your city.
Questions
Common questions
Do they have to be separate buildings?
Sometimes not. Some cities let several ADUs share one building (Maywood did), which usually costs less per door.
What can yours hold?
Send the address. Free, no obligation.



