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What is an Accessory Dwelling Unit (ADU)?
What is an Accessory Dwelling Unit (ADU)?
An ADU is a secondary housing unit built on the same lot as your main residence. ADUs must include a bathroom, kitchen, and living space to be considered fully functional. They can’t be sold separately from the main house but are ideal for extended family or rental income.

Types of ADUs Built by Rad Builder Inc.:

• Detached ADU: A separate structure, often in the backyard
• Attached ADU: Shares a wall with the main home but has a private entrance
• Garage Conversion: Turn your existing garage into a living space
• Junior ADU (JADU): A compact unit within your existing homewith an efficiency kitchen

Construction Timeline:

• Traditional builds: 3–18 months
• Prefab options: As little as 2 months

Regulations:
We ensure your ADU complies with California’s Title 24 energy codes, zoning rules, and local building ordinances.
Estimated Cost Range:

$100K–$350K+ depending on size, materials, and complexity. Rad Builder Inc. offers detailed, transparent pricing.

Permit Support:

Our team will handle plan submissions, inspections, and final approvals to keep your project on track.

Let Rad Builder Inc. help you design, permit, and build an ADU that adds real value to your property.