
Why Accessory Dwelling Units Make Sense in Long Beach
Accessory dwelling units (ADUs) are self-contained residential units built on the same lot as a single-family home. They can be detached, attached, or converted from an existing space, like a garage. In Long Beach, where housing demand is high and lot sizes are often underutilized, ADUs offer a practical and valuable solution.
USModular specializes in factory-built ADUs and single-family manufactured homes that are supplied faster and more affordably than traditional builds. Here’s why ADUs are growing in popularity across Long Beach:
- Add livable space without moving or expanding your main home
- Generate steady rental income with high local demand
- Create a private space for aging parents or returning college students
- Increase your property value and resale appeal
- Comply with evolving Long Beach ADU requirements and zoning laws
For real examples of our work, visit our ADU Project Gallery.
A Faster, Smarter Way to Build Your Long Beach ADU
Traditional construction can take a year or more and often comes with delays, disruptions, and budget overruns. USModular takes a different approach. As a leading ADU builder in Long Beach, we use a proven prefab system that accelerates your timeline while maintaining exceptional quality and code compliance.
Here’s how it works:
- Planning: We visit your site to assess setbacks, access, utility locations, and zoning rules. We help you choose between modular (CBC/Local) or manufactured (HUD/Federal) construction and provide a conceptual budget for your Long Beach ADU.
- Construction Contract: We finalize your construction scope, site costs, and ADU build contract.
- Design, Permitting & Build: We design the site plan, manage submittals, and build your ADU in the factory while preparing the site, including utilities, foundation, and any Long Beach new construction requirements.
- Delivery & Final Inspection: We install the ADU, walk you through it, make any needed adjustments, and obtain your Certificate of Occupancy.
Want to explore layout options? Check out our ADU Catalog for inspiration.

A Look at Long Beach ADU Laws & Incentives
The city of Long Beach ADU guidelines are homeowner-friendly, but they still come with rules you’ll want to get right. USModular handles all permitting, compliance, and inspections, so you don’t have to go through the process alone. Here’s a look at the current Long Beach ADU requirements:
- Setbacks: Minimum 4-foot side and rear yard setbacks for detached ADUs
- Height Limits: Detached ADUs are limited to 16 feet in height (unless specific exceptions apply)
- Size Allowances: Up to 1,200 sq. ft. for a detached ADU. Up to 50% of the primary dwelling’s size (or 1,000 sq. ft., whichever is greater) for an attached ADU.
- Parking: Often waived if your property is within ½ mile of public transit
- Permit Streamlining: State laws require cities like Long Beach to review ADU plans within 60 days
Tip: You may be eligible for a Long Beach ADU grant or state-level support through the CalHFA program, which can help cover early project costs. Need more details? View our complete guide to the city of Long Beach’s ADU rules and regulations.
Frequently Asked Questions About Hiring an ADU Builder in Long Beach
Adding an accessory dwelling unit is a big decision, and it’s natural to have questions. Below, we’ve answered some of the most common inquiries homeowners have when choosing an ADU builder in Long Beach. If you don’t see your question here, our team is happy to help.
How do I choose the right ADU builder in Long Beach?
Is financing available for a Long Beach ADU project?
Do I need a separate address or utility meter for my ADU in Long Beach?
Let’s Build Your Dream Long Beach ADU
Make USModular your trusted ADU builder in Long Beach. Whether you’re planning to house aging parents, welcome homegrown college grads, or create an ADU for rent in Long Beach, we’re here to make it happen faster, smarter, and 100% code-compliant. With deep knowledge of Long Beach ADU requirements, turnkey project management, and premium prefab designs, we simplify the entire process from concept to keys.
Reach out today to schedule your free site assessment and take the first step toward building the perfect accessory dwelling unit on your Long Beach property.
Watch Our ADU Installation in Action: Fast, Clean, and Precise
Want to see our process in action? Check out this quick video of a recent ADU crane install in San Diego, a perfect example of how fast, precise, and efficient a USModular installation can be. It’s a great glimpse into the quality and care we bring to every project.