Can I build a second unit on my parcel?

Provided building requirements can be met, all single-family residentially zoned parcels (2-R, 3-R, and 7-R) can have one primary dwelling unit (no square footage requirement) and one accessory dwelling unit (ADU) of no more than 1,200 square feet and one additional detached dwelling unit on any parcel of twice or more the minimum lot area. 

Multiple-family residential zoned parcels can also have ADUs. 

All parcels zoned S-1, S-3, R-10, and R-20, are allowed one primary dwelling unit; including an attached additional quarters for living and sleeping purposes (defined as no more than 30% of the primary dwelling unit floor area, excluding garages and carports), and one guest house of no more than 1,200 square feet, and one additional detached dwelling unit on any parcel of twice or more the minimum lot area.

Show All Answers

1. What is the parcel zoning and APN?
2. Where else can I find the parcel APN?
3. Can I build a second unit on my parcel?
4. Does the parcel have any combining zones?
5. Can I have chickens?
6. Can I have horses, cows, pigs, sheep, goats…?
7. When do I need a special use permit?
8. How are uses defined?
9. How do I obtain a special use permit?
10. How do you combine two or more parcels into one parcel?
11. How do you move property lines to reconfigure parcel boundaries?
12. I have two APNs. How do I know if I have two legal sellable parcels?
13. Does the County have PUD conditions on file?
14. Does the County have HOA CC&Rs on file?
15. Where can I find recorded maps?
16. Where can I find FEMA floodplain maps?
17. Where do I find planning applications?
18. I need to call Caltrans for an encroachment permit issue, who should I call?
19. I need to call HCD to start a mobilehome / RV park, who should I call?
20. I need to call CAL FIRE Lassen Modoc-Unit, who should I call?
21. What is required by AB 38 (2019)?
22. Where do I find the Minimum Fire Safe Regulations?
23. How do I know if the parcel is in a Firewise community?
24. Does being in a Firewise community help with obtaining fire insurance?
25. Where are wedding venues allowed?
26. How do I know if the parcel is in a Williamson Act Contract?
27. Am I allowed to camp in an RV on the property?
28. Can I live year-round in a tiny home on wheels?