What are the size limitations for ADUs and JADUs in San Diego?
San Diego allows a wide range of ADU (Accessory Dwelling Unit) and JADU (Junior Accessory Dwelling Unit) sizes. With MOMO ADU models from The ADU Wizard, you have flexibility, from compact studios to large multi-bedroom homes. MOMO’s models, like the 428 sq ft Seed Studio and the 1,002 sq ft Umbra 2BD XL, are designed to fit city regulations perfectly, making them an ideal, build ready choice for your property.
Size Limitations for ADUs in San Diego
Detached and Attached ADUs: The City of San Diego permits detached or attached ADUs up to 1,200 sq ft, with a minimum of 150 sq ft. For many homeowners, this means significant flexibility in design and space planning.
ADUs Up to 800 sq ft: Units 800 sq ft or less are especially advantageous: they are exempt from certain lot coverage, open space, and floor-area-ratio requirements, making them easier and faster to approve. MOMO ADUs have 3 models that are 800 sq ft or less.
JADUs: Junior ADUs must be carved from existing space within a single-family dwelling and are limited to 500 sq ft. JADUs must include an efficiency kitchen and typically require owner occupancy.
Seed Studio ADU from MOMO Homes.
MOMO Models: From Efficiency Studios to Spacious Family Homes
MOMO ADU models are selected to fit precisely within San Diego’s regulations, so you can choose the right size and function for your property:
The Seed Studio: At just 428 sq ft, this ultra-efficient studio is ideal for small backyards or as a compact rental unit, well above the city’s 150 sq ft minimum, and below the key 800 sq ft threshold for regulatory exemptions.
The Umbra 2BD XL: Offering 1,002 sq ft, this spacious 2-bedroom, 2-bathroom home is nearly at the city’s maximum but still fully permit-compliant. It’s perfect for extended family or as a lucrative rental, combining comfort and style on a larger scale.
Other Models: MOMO offers a variety of designs and footprints between these two sizes, ensuring a solution for almost any lot and housing need.
Umbra XL from MOMO Homes
The ADU Wizard Advantage
With The ADU Wizard and MOMO models:
You get pre-engineered, build ready designs that fit San Diego’s detailed size and zoning rules, reducing uncertainty and delays.
Every MOMO model includes a stamped site plan ready for permit submission, so your project moves forward faster while staying compliant with local code.
If you’re exploring your options and want expert guidance, plus a portfolio of high-quality, build ready ADUs, explore MOMO ADU models at www.theaduwizard.com. With sizes ranging from 428 sq ft to just over 1,000 sq ft, there’s a perfect fit for every San Diego property.