County Standard ADU Building Plans

To see if you live in one of the unincorporated communities where our
fee waiver program and pre-approved plans may be used, please click here.

 

Important Notice about the Trial ADU Fee Waiver program:

You may be familiar with the County of San Diego trial impact fee waiver that went into effect January 9th 2019. This was a trial waiver that was funded for 5 years that will be ending on January 9 th 2024 .

Projects that are started prior to January 9th 2024 will have plan check fees waived as they start the review process. Permit and all other impact fees are not collected until a project is ready to be issued and will not be covered if the permit is issued after the January 9th 2024 date. If your project is currently under review we will be working to provide any corrections as soon as possible so that your design team can work to update the plans and obtain your permit prior to 1-9-24. Please work with your design professionals to get plans updated and returned to the County so that projects may be approved in a timely manner.

If you have any questions about this trial program or you feel you will not be able to provide your plans for review prior to the 1-9-24 date please reach out to us at aduquestions@sdcounty.ca.gov.

 

County standard ADU plan types are arranged by square footage and layout. Please download and review all associated documents with each plan set, and use the included checklist to be sure all steps are completed prior to starting the plan review process.


Floorplan Options

 

Documents

 

PLAN A

1200 SQFT - 3 BEDROOM, 1 BATH

ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE
PLAN B

1200 SQFT - 2 BEDROOM, 1 BATH

ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE
PLAN C

1200 SQFT - 2 BEDROOM, 2 BATH

ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE
PLAN D

1000 SQFT - 1 BEDROOM, 1.5 BATH

ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE
PLAN E

800 SQFT - 1 BEDROOM, 1 BATH

ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE
PLAN F

600 SQFT - 1 BEDROOM, 1 BATH
ADU Letter (Multi-Lingual)
ADU Checklist (required)
ADU Checklist Guidance
36" x 24" PDF
17" x 11" PDF
CAD FILE