| Table of Contents |
| 1. What Is a Prefab ADU? |
1.1 Popular Types of Prefab ADUs |
2. Prefab ADU Costs in Bakersfield |
| 3. ADU Regulations in Bakersfield, CA |
| 4. Benefits of Prefab ADUs in Bakersfield |
| 5. Can You Rent Out a Prefab ADU in Bakersfield? |
| 6. FAQ |
As California continues to face a housing crisis, cities like Bakersfield are embracing prefab ADUs (Accessory Dwelling Units) as an affordable, fast, and efficient solution. Whether you're adding a rental unit, creating a home office, or building a granny flat, prefabricated ADUs allow homeowners to bypass many of the headaches of traditional construction.
This comprehensive guide breaks down everything you need to know about prefab ADUs in Bakersfield, from permits and costs to top prefab builders, zoning rules, and more.
What Is a Prefab ADU?
A prefabricated ADU is a factory-built secondary housing unit that is shipped to your property and assembled on-site. Unlike stick-built ADUs, prefab units are produced off-site in a controlled environment, reducing build time and cost.
Popular Types of Prefab ADUs:
Modular ADUs – Assembled from large factory-made sections
Panelized ADUs – Flat panels shipped and assembled on-site
Container ADUs – Made from upcycled shipping containers
Tiny homes on foundations – Legal if they meet California ADU codes
Prefab ADU Costs in Bakersfield (2025)
Prefab ADUs are generally 15–30% cheaper than traditional builds.
| Type | Size | Estimated Cost (Installed) |
|---|---|---|
| Studio | 250–400 sq ft | $90,000–$120,000 |
| 1-Bedroom | 400–700 sq ft | $120,000–$160,000 |
| 2-Bedroom | 700–1,200 sq ft | $160,000–$220,000 |
ADU Regulations in Bakersfield, CA
Bakersfield follows California state law, but here are some city-specific notes:
Zoning & Setbacks:
ADUs allowed in all residential zones (R-1, R-2, etc.)
Minimum 4 ft side and rear yard setbacks
No setback required if converting a legally existing structure
Size Limits:
Attached ADU: Up to 50% of primary home’s size
Detached ADU: Up to 1,200 sq ft
JADU: Max 500 sq ft, must be within the main home
Parking:
No replacement parking required if within ½ mile of public transit
Permitting:
Apply through Bakersfield Building Department
Prefab plans must comply with California Residential Code (CRC) and Title 24 Energy Code
Benefits of Prefab ADUs in Bakersfield
✅ Faster Construction: Often installed in 60–90 days
✅ Lower Costs: Streamlined supply chain reduces labor expenses
✅ Less Disruption: Minimal site work and noise
✅ Sustainable: Many models are built with eco-friendly materials
✅ Customizable: Choose layouts, finishes, and size
Can You Rent Out a Prefab ADU in Bakersfield?
Yes! In fact, many homeowners install prefab ADUs as rental income units.
Legal Considerations:
Must be permitted and inspected
Cannot be used for short-term rentals (under 30 days)
Separate mailing address optional, but recommended
May require a business license for rental income
