Frequently Asked Questions (FAQ)
What is the cost of an ADU?
The cost of an ADU varies by geographical location, grade, size and design. Let one of our ADU Specialist evaluate your property for an accurate estimate.
Do You Finance?
We have lenders that specialize in ADU financing. You will find lender information under ADU Financing.
How long does it take to build an ADU?
The overall time varies, but construction of the build only takes 90-120 days. Design and Permit are the other variables for overall time. In most cases, ADUs take 8-12 months for completion.
Do you have custom plans?
Custom are designed at the time the contract starts. As the name indicates, we build pre-approved and custom designs.
Do you build prefab homes?
We do not build prefab ADUs, we are a “stick-build or ground up” builder.
As the homeowner, do I have to handle the permit process?
No, OneSource will manage your permit process. The homeowner simply pays the permit approval fee.
Do you have architects to help with design?
Yes, we contract with proven, reliable and highly experienced ADU designers.