How much yard space do I need for an ADU in Long Beach?

Jennifer Anderson
October 19, 2025 at 10:19 PM
Design & Planning Long Beach, CA
Hey everyone,

I'm looking for some advice on planning an ADU for my property in Long Beach. I've been digging through the city's zoning regulations, but I could use some clarity from those who have already gone through this process. My lot is about 6,500 square feet, and I'm trying to figure out how much of that needs to remain as open space once the ADU is built.

From what I've gathered, there are setbacks and minimum lot size requirements, but I'm still unsure how these specifically apply to my case. My budget is around $150,000, and I'm hoping to maximize the space without running into any regulatory issues or unexpected costs during the construction phase.

Here are a few specific questions I have:

1. What are the specific setback requirements for ADUs in Long Beach, especially for a lot of my size?
2. How do I calculate the maximum allowable size for the ADU based on my lot dimensions, and are there any exceptions or considerations I should be aware of?
3. Are there any particular design aspects I should consider to make the most of my budget while staying compliant with local codes?
4. Lastly, have there been any recent changes in city regulations related to ADU construction that I should be aware of before starting the design process?

I'd appreciate any insights or experiences you could share. Thanks in advance!

1 Answer

Michael Park
October 19, 2025 at 12:11 PM
Hello,

It's great to see your interest in adding an ADU to your property in Long Beach! This is a fantastic way to maximize your property’s value and utility. Let's dive into your questions and provide some detailed guidance based on my experience in the area.

### 1. Setback Requirements in Long Beach

In Long Beach, the typical ADU setback requirements are quite accommodating. According to the latest city ordinances, ADUs must maintain a minimum setback of 4 feet from the rear and side property lines. Front setback requirements generally align with the primary residence's setbacks, but since ADUs are often built behind the main house, this is less of a concern unless your lot has unique challenges.

For your 6,500 square foot lot, these setbacks should fit comfortably unless your property has irregular boundaries or existing structures that might complicate placement. Always double-check with Long Beach’s Development Services to ensure compliance with any specific neighborhood overlays that might affect setback requirements.

### 2. Maximum Allowable Size

California state law, notably SB-13 and AB-68, allows for ADUs up to 1,200 square feet, regardless of lot size, provided all other zoning requirements are met. However, Long Beach may have specific limitations based on the size of your primary dwelling and overall lot coverage rules. Typically, the total floor area of your ADU should not exceed 50% of the existing primary residence's floor area, unless the ADU is detached.

In your case, with a 6,500-square-foot lot, you should comfortably fit an ADU up to the maximum size, but do ensure that it doesn’t lead to exceeding the allowed lot coverage, which typically caps at around 40% for all structures. Calculate this by adding the square footage of your planned ADU to your existing home and any other structures, ensuring the total does not exceed 40% of your lot's area.

### 3. Design Considerations for Budget Compliance

With a budget of $150,000, you’re aiming for a cost-effective build. Here’s how to stretch your dollar:

- **Opt for a Simple Design:** Stick to a rectangular or square footprint to save on costs. Complex designs with multiple corners can drive up the price due to increased labor and materials.
- **Prefabricated Units:** Consider prefabricated or modular ADUs, which can be more budget-friendly and quicker to install compared to custom builds.
- **Focus on Energy Efficiency:** Invest in efficient insulation, windows, and appliances. These might have a higher upfront cost but will save money long-term on utilities and add value.
- **Interior Finishes:** Choose mid-range finishes that offer durability and aesthetics without breaking the bank. IKEA or similar brands can offer cost-effective cabinetry and fixtures.

### 4. Recent Regulatory Changes

Long Beach has been supportive of ADUs, in line with California’s push for increased housing. Recent state laws such as SB-9 and AB-68 have streamlined the process, removing many barriers like owner occupancy requirements and allowing for junior ADUs. However, always check the latest city-specific ordinances before proceeding as local rules can evolve.

### Additional Tips

- **Permitting:** Start by consulting with Long Beach’s Development Services for a pre-application meeting. They can provide detailed information on your specific lot and any neighborhood-specific regulations.
- **Utilities:** Factor in utility connections into your budget. Sewer and water line extensions can be costly, depending on their current locations relative to your planned ADU.
- **Professional Guidance:** Hire a local architect or ADU specialist familiar with Long Beach’s processes. They can provide invaluable insights and help avoid common pitfalls.

### Next Steps

1. **Site Evaluation:** Conduct a detailed site evaluation with a professional to finalize placement and design.
2. **Consult with the City:** Schedule a meeting with Long Beach’s planning department for any additional questions.
3. **Budget Planning:** Work closely with a contractor to ensure your budget aligns with your design aspirations.
4. **Timeline:** From planning to completion, expect a timeline of 12-18 months, factoring in design, permitting, and construction phases.

In summary, while the process may seem daunting, careful planning and consultation with local experts can ensure a smooth journey to adding an ADU to your property. Good luck, and feel free to reach out if you have more questions!

Warm regards,

[Your Name]
ADU Consultant
Didn't find what you're looking for?

Need help with ADU plans, permits, or finding contractors? Our experts are here to guide you through the entire process.

Book Free Call
or call: (323) 591-3717
Community Answers
Share Your Knowledge

Help the ADU community by sharing your experience, insights, or professional expertise.

Please provide helpful, detailed answers based on your experience with ADUs.
Required but never displayed publicly or shared.
CAPTCHA
Your contribution helps thousands of homeowners exploring ADU options

Ready to Start Your ADU Project?

Get a personalized quote based on your specific needs and location. Our experts will guide you through every step of the process.

Get Instant Quote
Free consultation included • No obligation

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
Pantry storage
Two full baths
Brookside ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 1,400 sq ft
The Brookside

Luxurious 2-bedroom design with premium features. Includes master suite, guest bedroom, and spacious living areas.

Large living room
Walk-in closets
Full kitchen island
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
Laundry room
Multiple closets
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
Ready to Explore More ADU Designs?

Browse our complete collection of ADU floor plans with detailed specifications, 3D renderings, and customization options.

View All Floor Plans

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?

Get a personalized quote and expert guidance for your Long Beach ADU project.

Get Instant Quote

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.

Get Free Cost Estimate

Complete Guide to Design & Planning ADUs in Long Beach, CA

Understanding Design & Planning for ADU Projects

Thoughtful design and planning are the foundation of any successful ADU project in Long Beach, CA. From initial concept to final blueprints, every design decision impacts both functionality and compliance with local building codes.

Effective ADU design maximizes space efficiency while creating comfortable, livable environments. Consider factors like natural light, ventilation, storage solutions, and accessibility when developing your plans. The layout should serve your intended use, whether for rental income, family members, or home office space.

Professional design services can help you avoid costly mistakes and ensure your ADU meets both your needs and regulatory requirements. Our design experts understand local preferences and can create plans that add maximum value to your property.

Design & Planning 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 Design & Planning

The GatherADU team has helped hundreds of homeowners navigate design & planning 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 design & planning phase saves both time and money throughout the entire ADU development process.

Our database contains 127 questions related to Design & Planning, with 139 expert answers providing comprehensive guidance for homeowners facing similar challenges.

Ready to Move Forward with Your ADU Project?

Don't let design & planning challenges delay your ADU dreams. Our experts can provide personalized guidance specific to your situation in Long Beach, CA.

More Design & Planning Questions & Answers

Explore additional design & planning questions from our community to gain deeper insights into ADU development challenges and solutions.

What are the parking requirements for ADUs in Torrance?
Torrance, CA 1 answers

Hi everyone, I'm in the early stages of planning an ADU addition to my property in Torrance, CA, an...

October 22, 2025
What are the height restrictions for ADUs in Huntington Beach?
Huntington Beach, CA 1 answers

Hello everyone, I'm in the planning stages of adding an Accessory Dwelling Unit (ADU) to my propert...

October 22, 2025
What's the ideal size for an ADU in Riverside?
Riverside, CA 1 answers

I've been thinking about adding an ADU to my property in Riverside, CA, and I'm trying to nail down ...

October 22, 2025
Can I build a two-story ADU in Santa Ana?
Santa Ana, CA 1 answers

Hi everyone, I'm considering adding a two-story Accessory Dwelling Unit (ADU) to my property in San...

October 22, 2025
What are the parking requirements for ADUs in Pomona?
Pomona, CA 1 answers

Hi everyone, I'm in the early stages of planning an ADU on my property in Pomona, California, and I...

October 22, 2025
How to design an energy-efficient ADU in Santa Ana?
Santa Ana, CA 1 answers

Hi everyone, I'm in the early stages of planning an ADU on my property in Santa Ana and I want to f...

October 22, 2025
Can I design an ADU with a patio in Bakersfield?
Bakersfield, CA 1 answers

Hi everyone, I'm in the early stages of planning an ADU for my property in Bakersfield, and I'm hop...

October 22, 2025
Can I design an ADU with a patio in Huntington Beach?
Huntington Beach, CA 1 answers

Hello everyone, I'm a homeowner in Huntington Beach considering adding an ADU (Accessory Dwelling U...

October 22, 2025

ADU Questions from Long Beach, CA

Discover how other homeowners in Long Beach, CA are approaching their ADU projects. Local insights can provide valuable context for your own planning.

What are the lot coverage limits for ADUs in Long Beach?
Zoning & Legal 1 answers

Hey everyone, I'm hoping to get some clarity on the lot coverage limits for ADUs in Long Beach, Cali...

October 22, 2025
What are the zoning laws for ADUs in Long Beach?
Zoning & Legal 1 answers

Hi everyone, I'm a homeowner in Long Beach, CA, and I'm considering building an ADU on my property....

October 22, 2025
Can I have multiple ADUs on one lot in Long Beach?
Zoning & Legal 1 answers

Hello everyone, I'm a homeowner in Long Beach, California, and I'm interested in adding multiple AD...

October 22, 2025
Can I convert my garage to an ADU in Long Beach?
Garage Conversion 1 answers

Hey everyone, I'm seriously considering converting my detached garage into an ADU on my property in ...

October 22, 2025
Can I have multiple ADUs on one lot in Long Beach?
Zoning & Legal 1 answers

Hello everyone, I'm hoping to get some insights into the regulations around building multiple ADUs ...

October 22, 2025
Best garage conversion layouts for ADUs in Long Beach?
Garage Conversion 1 answers

Hey everyone, I'm looking into converting my detached garage into an ADU here in Long Beach, and I'...

October 22, 2025

Related ADU Questions

These questions share similar topics or locations and may provide additional insights for your ADU project.

What are the lot coverage limits for ADUs in Long Beach?
Zoning & Legal Long Beach, CA
1 answers Oct 22, 2025
What are the parking requirements for ADUs in Torrance?
Design & Planning Torrance, CA
1 answers Oct 22, 2025
What are the height restrictions for ADUs in Huntington Beach?
Design & Planning Huntington Beach, CA
1 answers Oct 22, 2025
What's the ideal size for an ADU in Riverside?
Design & Planning Riverside, CA
1 answers Oct 22, 2025
Can I build a two-story ADU in Santa Ana?
Design & Planning Santa Ana, CA
1 answers Oct 22, 2025

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
Need Help with Your ADU Checklist?

Our experts can provide personalized guidance for each phase of your Long Beach ADU project, ensuring nothing falls through the cracks.

Get Expert Project Guidance
Get Expert Help

Stuck on your ADU project? Get personalized guidance from our experts.

Free 15-minute consultation available
Related Topics
Design & Planning 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.