Can I have multiple ADUs on one lot in Long Beach?

Sarah Williams
October 22, 2025 at 05:23 AM
Zoning & Legal Long Beach, CA
Hello everyone,

I'm hoping to get some insights into the regulations around building multiple ADUs on a single lot in Long Beach. I own a 9,500 sq ft lot in a residential neighborhood and I’m considering adding more living space. Ideally, I’d like to have two ADUs to maximize rental income, but I’m not sure if that's feasible under the current zoning laws.

From my initial research, it seems like Long Beach is pretty supportive of ADUs, but I'm unclear on whether multiple ADUs are allowed on a single lot. I've come across references to R-1 and R-2 zoning codes but would appreciate some clarification on how these might apply to my situation.

Here are a few specific questions I have:

1. Are there restrictions on the number of ADUs I can build on a lot of this size?
2. How do zoning regulations differ for properties zoned R-1 versus R-2, and which one might apply to me?
3. Are there specific design standards or budget constraints I should be aware of when planning for more than one ADU?
4. Lastly, what is the process for obtaining permits for multiple ADUs, and are there any potential hurdles I should anticipate?

Thanks for any advice or experiences you can share! I'm really keen on making sure I comply with all city regulations before moving forward.

1 Answer

Argi A
October 20, 2025 at 10:30 PM
Hello!

It's great to see your enthusiasm for expanding your property with additional ADUs in Long Beach. Let’s address your questions step by step, considering the current regulations and practices in Long Beach and California as a whole.

### 1. Restrictions on the Number of ADUs

In California, recent legislation such as AB-68 and SB-9 has paved the way for more flexible ADU development. In Long Beach, generally, you can have one primary dwelling, one ADU, and one Junior ADU (JADU) per lot. However, the possibility of multiple ADUs largely depends on the zoning designation of your property and specific local ordinances.

- **R-1 Zoning:** This is typically single-family residential zoning. On R-1 lots, you are generally allowed one ADU and one JADU, with the JADU being a conversion of existing space within the primary dwelling.
- **R-2 Zoning and Higher (e.g., R-3):** More flexibility exists here, as these zones are meant for multi-family dwellings. You might be able to add multiple ADUs, especially if they involve converting existing structures like garages or basements. However, the total number would still be subject to local density limits and development standards.

### 2. Zoning Regulations: R-1 vs. R-2

**R-1 Zoning:** Typically allows for single-family homes with the addition of one ADU and one JADU. The JADU must be under 500 sq ft and part of the existing home structure.

**R-2 Zoning:** This allows for duplexes and, potentially, more ADUs or conversions depending on the lot size. An R-2 zone might support your plan for two full ADUs, particularly if you're converting existing spaces.

To determine your zoning, you can check the Long Beach zoning map or contact the Long Beach Development Services Department.

### 3. Design Standards and Budget Constraints

**Design Standards:**
- **Size Limits:** Detached ADUs are typically limited to 1,200 sq ft.
- **Height Restrictions:** Usually, a maximum of 16 feet for detached ADUs, but this can vary with neighborhood-specific guidelines.
- **Setbacks:** Typically, 4 feet from side and rear property lines.

**Budget Constraints:**
- **Costs:** In Long Beach, costs for building an ADU range from $150,000 to $300,000 depending on size, existing infrastructure, and finishes.
- **Utilities:** Consider costs for connecting to water, sewer, and electricity, which can add significantly to the budget.

### 4. Permit Process and Potential Hurdles

**Permit Process:**
1. **Pre-application Meeting:** It’s beneficial to have a preliminary meeting with the Long Beach Development Services to discuss your ideas and obtain feedback.
2. **Design and Planning:** Work with an architect familiar with Long Beach ADU regulations to ensure compliance with all design standards.
3. **Submission of Plans:** Submit architectural plans for review. This process can take 4-6 weeks.
4. **Approval and Permitting:** Once approved, permits can be issued. The entire process, from submission to approval, can take 4-6 months.

**Potential Hurdles:**
- **Parking Requirements:** While some may be waived under state law, local ordinances may still impose conditions unless your property is near public transit.
- **Neighborhood Covenants:** Check for any homeowners association (HOA) rules or covenants that might restrict ADU construction.

### Tips and Next Steps

- **Research and Consult:** Use resources such as the Long Beach Development Services website, which provides specific guidance on ADU projects.
- **Engage a Local Expert:** Consider hiring a local ADU consultant or architect who has experience with Long Beach projects to streamline the process and ensure compliance.
- **Community Impact:** Be prepared to address any neighborhood concerns, especially in areas with historical significance or architectural guidelines.

### Resources

- **Long Beach Development Services:** [City of Long Beach ADU Guidelines](http://www.longbeach.gov/lbds/planning/adu/)
- **California Legislative Information:** [AB-68 Full Text](https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=201920200AB68)

Planning and constructing ADUs can be a rewarding but intricate endeavor. By following these guidelines and utilizing local resources, you can significantly enhance your property while adhering to city regulations. Best of luck with your project!

Warm regards,

[Your Name]
ADU Consultant
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Types of ADUs in Long Beach, CA

Understanding the different types of Accessory Dwelling Units can help you choose the best option for your property and needs.

Detached ADU

A separate, standalone structure built on your property. Offers maximum privacy and flexibility for tenants.

  • Complete privacy
  • Custom design options
  • Higher rental income potential
Attached ADU

An addition to your existing home with a separate entrance. Cost-effective option with shared utilities.

  • Lower construction costs
  • Shared utility connections
  • Family-friendly proximity
Garage Conversion

Convert existing garage space into a livable unit. Most cost-effective ADU option with fastest approval.

  • Lowest construction cost
  • Faster permitting
  • Uses existing structure
JADU

Junior ADU created within the existing home. Maximum 500 sq ft with efficiency kitchen and shared utilities.

  • Minimal construction
  • No parking requirement
  • Perfect for family use
Upper Floor ADU

Add a second story or convert existing upper floor space. Maximizes property value and rental potential.

  • Premium rental rates
  • Enhanced privacy
  • Great city views
Basement ADU

Convert basement or lower level into living space. Great option for properties with existing below-grade areas.

  • Uses existing space
  • Natural temperature control
  • Sound isolation

ADU Cost Guide for Long Beach, CA

Understanding ADU costs helps you budget effectively and make informed decisions about your project. Costs vary based on size, complexity, and local factors.

ADU Type Size Range Cost Range Timeline Best For
Garage Conversion 400-800 sq ft $80K - $150K 3-6 months Budget-conscious homeowners
JADU Up to 500 sq ft $50K - $100K 2-4 months Family use, minimal disruption
Attached ADU 600-1,000 sq ft $120K - $200K 4-8 months Shared utilities, family proximity
Detached ADU 600-1,200 sq ft $150K - $300K 6-12 months Maximum rental income
Two-Story ADU 800-1,500 sq ft $200K - $400K 8-15 months Maximizing property value
Cost Factors to Consider
  • Site Preparation: $5K - $25K
  • Permits & Fees: $3K - $15K
  • Utility Connections: $5K - $20K
  • Finish Level: $10K - $50K variance
  • Landscaping: $2K - $10K
Potential ROI
  • Rental Income: $1,500 - $4,000/month
  • Property Value Increase: 20-30%
  • Payback Period: 8-15 years
  • Tax Benefits: Depreciation allowances
  • Equity Growth: Long-term appreciation
Get Your Personalized Cost Estimate

These are general ranges. Your actual costs may vary based on specific site conditions, design choices, and local market factors in Long Beach.

Get Detailed Quote

Why Build an ADU in Long Beach?

Financial Benefits
Rental Income: Generate $18,000-$48,000 annually
Property Value: Increase home value by 20-30%
Tax Benefits: Depreciation and expense deductions
Investment: Strong ROI in California markets
Lifestyle Benefits
Multigenerational Living: Keep family close while maintaining privacy
Home Office: Create dedicated workspace or studio
Guest Space: Comfortable accommodations for visitors
Sustainability: Increase housing density efficiently

Popular ADU Floor Plans

Explore our most popular ADU designs that work well in Long Beach, CA. These professionally designed floor plans optimize space and functionality while meeting local building requirements.

Cascade ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 1,200 sq ft
The Cascade

Spacious 2-bedroom design perfect for families. Features open living area, full kitchen, and two full bathrooms with optimal privacy.

Open floor plan
Master suite
Laundry room
Summit ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 950 sq ft
The Summit

Efficient 2-bedroom layout maximizing every square foot. Great for narrow lots with smart storage solutions throughout.

Compact design
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Brookside ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 1,400 sq ft
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Large living room
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Sequoia ADU Floor Plan - 3 Bedroom, 2 Bathroom
3 Bed 2 Bath 1,100 sq ft
The Sequoia

Unique 3-bedroom configuration perfect for larger families. Features dual bathrooms and smart space utilization.

Three bedrooms
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Crestline ADU Floor Plan - 3 Bedroom, 2 Bathroom
3 Bed 2 Bath 1,500 sq ft
The Crestline

Premium 3-bedroom layout with maximum comfort. Features spacious bedrooms, walk-in closets, and luxury finishes.

Primary suite
Pantry space
Open concept
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Types of ADUs in Long Beach, CA

Understanding the different types of Accessory Dwelling Units available in Long Beach, CA can help you choose the best option for your property and budget.

Detached ADU

A standalone structure separate from the main house. Offers maximum privacy and flexibility.

  • Maximum privacy
  • Flexible design options
  • Higher rental income potential
Garage Conversion

Converting an existing garage into a living space. Most cost-effective option.

  • Lower construction costs
  • Faster permitting process
  • Existing utilities nearby
Attached ADU

An addition to the existing house with separate entrance. Balances cost and privacy.

  • Shared utilities
  • Moderate construction costs
  • Easy maintenance access
Ready to Start Your ADU Project?

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ADU Cost Guide for Long Beach, CA

Understanding ADU costs helps you budget effectively and make informed decisions about your project in Long Beach, CA.

ADU Type Size Range Cost Range Cost per Sq Ft Timeline
Garage Conversion 400-800 sq ft $80,000 - $150,000 $200 - $250 3-6 months
Attached ADU 500-1,200 sq ft $150,000 - $300,000 $250 - $350 6-9 months
Detached ADU 600-1,200 sq ft $200,000 - $400,000 $300 - $450 8-12 months
Prefab ADU 400-1,000 sq ft $120,000 - $250,000 $250 - $350 4-8 months
JADU (Junior ADU) Up to 500 sq ft $50,000 - $120,000 $150 - $300 2-4 months
Cost Factors to Consider:
  • Site preparation and utilities
  • Permits and plan review fees
  • Foundation and structural work
  • Finishes and appliances
  • Landscaping and driveway
Ways to Save Money:
  • Choose garage conversion over new build
  • Use prefab or modular construction
  • Keep design simple and efficient
  • Bundle with main house renovations
  • Work with experienced ADU builders
Get Your Personalized ADU Cost Estimate

Our experts will provide a detailed cost breakdown for your specific Long Beach property.

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Complete Guide to Zoning & Legal ADUs in Long Beach, CA

Understanding Zoning & Legal for ADU Projects

Navigating zoning regulations and legal requirements is crucial for any ADU project in Long Beach, CA. Understanding local ordinances, state laws, and compliance requirements can save you time, money, and potential legal issues down the road.

Key considerations for zoning and legal compliance include setback requirements, height restrictions, lot coverage limitations, and parking regulations. Each jurisdiction has specific rules that must be followed, and these can vary significantly even within the same county or region.

Working with experienced professionals who understand local regulations is essential. The GatherADU team specializes in navigating these complex requirements and can help ensure your project meets all necessary legal standards from planning through completion.

Zoning & Legal Requirements in Long Beach, CA

Local regulations in Long Beach, CA have specific requirements that affect ADU development. Understanding these local nuances is crucial for project success and compliance.

Long Beach has 27 ADU-related questions in our database, indicating active development interest in your area. This local activity suggests growing expertise among contractors, architects, and city officials familiar with ADU projects.

Common considerations for Long Beach include local architectural standards, historical district requirements if applicable, utility connection procedures, and neighborhood-specific zoning overlays that may affect your project.

Expert Insights on Zoning & Legal

The GatherADU team has helped hundreds of homeowners navigate zoning & legal challenges successfully. Our experience reveals common patterns, effective strategies, and potential pitfalls to avoid.

Professional consultation early in your project can prevent costly mistakes and delays. We've seen how proper planning in the zoning & legal phase saves both time and money throughout the entire ADU development process.

Our database contains 148 questions related to Zoning & Legal, with 157 expert answers providing comprehensive guidance for homeowners facing similar challenges.

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ADU Development Checklist for Long Beach, CA

Use this comprehensive checklist to ensure you don't miss important steps in your ADU development process.

Planning Phase
  • Define project goals and budget
  • Research local zoning requirements
  • Evaluate site conditions and constraints
  • Consult with ADU experts
  • Develop preliminary design concepts
Pre-Construction
  • Finalize architectural plans
  • Submit permit applications
  • Select qualified contractors
  • Secure financing if needed
  • Schedule utility connections
Construction Phase
  • Site preparation and excavation
  • Foundation and framing work
  • Rough-in electrical and plumbing
  • Insulation and drywall installation
  • Interior and exterior finishes
Completion
  • Final inspections and approvals
  • Certificate of occupancy
  • Utility meter installation
  • Final walkthrough and cleanup
  • Property insurance updates
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Zoning & Legal Long Beach ADU Planning Permits
Long Beach, CA

This question is specific to Long Beach, CA

Local regulations may vary by jurisdiction. Always verify with your local planning department.