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ADUs, KNOW ABOUT THEM
SANTEE
REGULATIONS
Understanding ADU regulations in Santee, California is an important first step for homeowners and property owners looking to build. Whether you're planning a rental unit, extra living space, or a future investment, staying informed on the local requirements helps ensure your project runs smoothly. It also helps you get the most out of your property by adding long-term value, functionality, and flexibility.
WHAT CAN I BUILD?
MAX SIZES
Detached or attached ADUs can be up to 1,200 sq ft. JADUs are limited to 500 sq ft max.
SETBACKS
ADUs require 4-foot side and rear setbacks. Front setbacks apply unless the ADU is 800 sq ft or less and placed in the front yard.
TWO STORY ADUS
Two-story ADUs are allowed if the property is within ½ mile of transit or on multifamily lots with existing two-story buildings. Max height is 20 ft (otherwise 16 ft).
BUILDING SEPARATIONS
Detached ADUs must be 6 ft from dwellings, 5 ft from non-habitable structures, and 4 ft eave-to-eave.
HOW LONG WOULD IT TAKE?
PERMIT TIMEFRAME
Typically takes 2 to 5 months. The full process from start to finish averages around 8 months.
COASTAL OR OTHERS?
No Coastal Development Permit is needed since Santee is outside the Coastal Zone.
What Am I Allowed To Do ?
What Are The Setbacks And Parking Situation ?
What Are The Design Rules I Need To Follow ?
Important Considerations for ADUs ?
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