Custom ADU Construction for Riverside County and the Inland Empire
Accessory Dwelling Units (ADUs) have become an increasingly practical solution for homeowners looking to add livable space or generate rental income without the cost of traditional construction. Full Circle Builders serves homeowners, landowners, and landlords across Riverside County and the Temecula Wine Valley, offering custom ADU builds designed to meet local demand for additional housing.
As an ADU contractor focused on the Inland Empire region, Full Circle Builders works with clients to deliver quality detached ADU construction that fits within realistic budgets. Their approach centers on modified sea crate units — modular, stackable dwelling units that can be outfitted with living spaces, bedrooms, bathrooms, and kitchenettes. Doors, walls, and windows can be added according to the homeowner's preferences, and units can be stacked, combined, or connected to form a more complete residential structure.
ADU Pricing and What's Included
Full Circle Builders offers a 590 sq ft, 1-bedroom, 1-bathroom detached ADU starting at $185,000. This base price covers turn-key construction on a typical lot, including:
- Foundation, framing, and roofing
- Windows and standard interior finishes
- Basic utility connections
Final project costs will vary depending on site-specific conditions. Factors that may increase the overall price include:
- Interior upgrades: Custom cabinets, countertops, tile, trim, and finish carpentry
- Extended utility runs: Electrical, sewer, or water lines more than 30 ft from the main house
- Site work: Grading, solar installation, or other property-specific requirements
- Local permitting fees
As a backyard cottage builder operating under California ADU regulations, Full Circle Builders designs these units specifically for backyard placement on residential lots.
Many California cities now offer pre-approved ADU plans to help reduce permitting timelines. Full Circle Builders assists clients in selecting an appropriate pre-approved plan, adapting it to their specific property, and managing the permitting and approval process from start to finish. Pre-approved plans are typically available through local City Hall or a city's planning or building department website.
The general build process follows these steps:
- Site Visit & Feasibility – A walkthrough of the property to review setbacks, access, and utility locations
- Plan Selection – Choosing a pre-approved ADU plan or developing a custom design
- Permits & Approvals – Coordinating with the city to submit plans and obtain permits
- Construction – Foundation, framing, rough-ins, finishes, and required inspections
- Move-In Ready – Handoff after final inspection and certificate of occupancy
For Temecula Valley homeowners, an ADU can serve several practical purposes: housing family members privately while keeping them nearby, generating long-term rental income, or increasing overall property value with a permitted, code-compliant second dwelling unit.
Container Homes as an ADU Alternative
In addition to standard ADU construction, Full Circle Builders also offers modern container homes as an alternative to traditional room additions. These units are modified from sea crates — typically a 1,200 square foot container measuring 40 feet long by 8 feet tall by 8 feet wide. The containers can be stacked, connected, or arranged in various configurations to suit the property and the homeowner's needs.
Container dwelling units are a durable and cost-effective option for those looking to add livable space to a Temecula Wine Valley property without the expense of conventional construction. Full Circle Builders guides clients through the planning process and sees the project through to completion.
For homeowners in Riverside County and the Inland Empire exploring accessory dwelling unit options, Full Circle Builders offers both standard ADU builds and container-based alternatives, with a focus on practical, budget-conscious solutions.
