ADU Frequently Asked Questions
We turn underutilized garages or spaces into income-producing property & living areas
What are the size limits for building an ADU?
ADU size limits vary by city but are generally around 1,200 square feet for detached units and up to 50% of the primary residence for attached ones.
Do I need to provide parking for my ADU?
Additional parking might not be required if your ADU is near public transit or if it’s a conversion of an existing space. Local regulations will specify exact requirements.
Can I build an ADU on a small lot?
Yes, even small lots can support ADUs, provided they meet local zoning laws, including size and setback requirements.
How much does it cost to build an ADU?
The cost of building an ADU can range from $150,000 to $400,000+, depending on size, location, and whether it’s a new construction or conversion.
How long does the ADU approval process take?
Approval for an ADU can take anywhere from 4-6 months.
Is owner occupancy required for my ADU?
Many cities do not require owner occupancy, allowing you to rent out your ADU without living on the property.
Are there height restrictions for my ADU?
Yes, ADUs are often limited to 16 feet in height for one-story structures, but this can vary by local ordinance.
Can I convert my garage into an ADU?
Converting a garage into an ADU is a common and often cost-effective option, subject to local building codes.
What are the benefits of adding an ADU to my property?
Benefits include potential rental income, increased property value, and providing housing solutions for family or tenants.
How can I finance my ADU construction?
Financing options include home equity loans, construction loans, or specialized ADU financing programs. Consult local financial institutions for advice.
What are the setback requirements for an ADU?
Setback requirements typically mandate a 4 feet distance from your side and rear property lines and usually a 6-10 feet distance depending on your local jurisdiction. Verify with your local jurisdiction.
Are there pre-approved ADU plans available?
Many cities offer pre-approved ADU plans to simplify design and expedite the approval process. We offer a set of 10 pre engineered plans which we are in process of getting approved in various cities across Southern California.
Will adding an ADU increase my property taxes?
Yes, adding an ADU can increase property taxes as a “blend assessment”. Please verify with your county assessors office for verification on how that works.
What's the ADU permitting process like?
The permitting process involves submitting plans to local building departments, with options for online processing or using pre-approved designs for faster approval.
How many ADUs can I legally build on my property?
Typically, one ADU & one jr ADU is allowed per single-family lot, with some cities allowing for two or more ADU’s (up to 8) on multi-family properties, subject to local zoning laws. Check with your local jurisdiction.
