ADU Custom Home Source – Manufactured Homes and ADU Solutions
ADU Custom Home Source is a Riverside-based company specializing in designing, selling, and installing custom-manufactured homes and accessory dwelling units (ADUs). They serve homeowners across Riverside, San Bernardino, Orange County, and parts of Los Angeles County, guiding clients through the entire process from initial concept to completed installation.
The company was founded by Cherise L. Valenzuela, who brings over 22 years of experience in the manufactured housing and real estate industry. As a licensed Real Estate Broker, Manufactured Home Dealer, and Lender, she combines expertise across real estate, construction, and financing to offer clients a comprehensive, end-to-end service. This range of qualifications allows ADU Custom Home Source to handle many aspects of a project in-house, simplifying what can otherwise be a complex process for homeowners.
What ADU Custom Home Source Offers
ADU Custom Home Source focuses on custom-manufactured homes and accessory dwelling unit solutions. An accessory dwelling unit is a secondary, independent residential unit located on the same lot as a primary home. These units are typically smaller and more cost-effective to build than traditional homes, and they can serve a variety of purposes — from housing family members to generating rental income or providing a dedicated home office or guest space.
As an ADU builder and accessory dwelling unit builder, the company offers a range of floor plans and customization options, allowing homeowners to tailor their unit to their specific needs and preferences. Whether a client is looking for a detached ADU, a granny flat, a Casita, or an in-law suite, ADU Custom Home Source works with clients to find a design that fits both their lifestyle and their budget.
The company also handles the permitting process on behalf of their clients, ensuring compliance with local zoning regulations. Zoning laws and ADU size limits vary by jurisdiction — typically ranging from 400 to 1,200 square feet — and navigating these requirements can be time-consuming. ADU Custom Home Source manages this on the client's behalf as part of their service.
On the financing side, they offer multiple options including traditional home loans, ADU-specific financing, home equity loans, construction loans, and flexible payment plans. Having lending expertise in-house means clients can explore financing solutions directly through the company rather than coordinating with separate lenders.
Project Timeline and Practical Considerations
From start to finish, projects typically take between 4 to 6 months, depending on factors such as permitting timelines, financing arrangements, and construction scope. Once permits are approved, construction itself generally takes 3 to 6 months.
There are several practical considerations homeowners should be aware of when planning an ADU:
- ADUs require permits, and local regulations vary by city and county.
- Utility connections may need to be separate, though some jurisdictions allow shared connections.
- Homeowners insurance policies should be updated to include the new ADU.
- Some jurisdictions require a separate address for the ADU unit.
- In certain areas, it may be possible to build more than one ADU on a single property, such as a detached unit alongside a garage conversion.
- ADUs can be rented out for additional income, though local rental laws apply.
ADU Custom Home Source positions itself as a resource for homeowners looking to add value to their property through a well-planned, code-compliant accessory dwelling unit or custom manufactured home. Their service area covers a significant portion of Southern California, and their team handles the key steps — design, permitting, financing, and construction — under one roof.
