How to maximize SB-9 development in Long Beach?

Barbara Johnson
October 19, 2025 at 09:32 PM
SB-9 (Lot Splits) Long Beach, CA
Hi everyone,

I'm a homeowner in Long Beach, CA, and I've been trying to wrap my head around how best to utilize SB-9 for developing my property. I've got a 7,500 sq ft lot and a budget of around $200,000. I’m particularly interested in how lot splits might work for me, but I'm a bit overwhelmed by the details and potential constraints.

From what I've read, SB-9 allows for splitting one residential lot into two, potentially enabling the construction of additional units. My goal is to create another income stream, but I want to ensure I'm following all city regulations and maximizing my investment.

Here are a few specific questions I have:

1. What are the specific zoning regulations in Long Beach that I need to be aware of when considering a lot split under SB-9? Are there any unique local amendments I should know about?

2. Are there any design or architectural constraints that could affect the type or size of the new units? I want to make sure any new construction is both compliant and financially viable.

3. What are the typical costs involved in going through the lot split process, beyond the construction itself? I’m trying to budget accurately and could use some guidance on hidden fees or expenses.

I’d appreciate any insights or experiences you all could share! I want to make sure I’m making informed decisions before moving forward with this project.

Thanks in advance!

1 Answer

Amanda
October 18, 2025 at 10:29 AM
Hello!

Navigating the ins and outs of SB-9 development in Long Beach can be a bit daunting, but with the right information, you can make informed decisions that maximize your property’s potential. Here's a comprehensive guide tailored to your questions:

### 1. Zoning Regulations and Local Amendments:

**Understanding SB-9 in Long Beach:**
SB-9, as you know, allows for the subdivision of a single-family residential lot into two, potentially paving the way for up to four residential units on what was originally a single-family lot. However, the application of SB-9 can be influenced by local zoning laws.

- **Zoning and Lot Splits:** In Long Beach, ensure your lot is zoned R-1 or equivalent single-family residential zone, as SB-9 primarily applies to these. Long Beach has specific guidelines regarding lot sizes and frontage requirements, so confirmation with the Planning Department is crucial.

- **Local Amendments:** Long Beach may impose objective standards, such as setback requirements, height restrictions, and design guidelines that align with neighborhood aesthetics. It's wise to review Long Beach's municipal code or consult directly with city planners to ensure your project complies with any local amendments.

### 2. Design or Architectural Constraints:

**Design Considerations:**
- **Unit Size and Design:** SB-9 mandates that new units be at least 800 square feet. In Long Beach, design should also consider local architectural styles, especially if your property is in a designated historic district.

- **Parking Requirements:** Although SB-9 generally reduces parking requirements, Long Beach may require one parking space per unit unless your property is within half a mile of public transit.

- **Environmental and Safety Concerns:** Check for any environmental constraints, like being in a flood zone, which could impose additional requirements.

### 3. Costs Beyond Construction:

**Budgeting for a Lot Split:**
- **Planning and Permitting Fees:** Expect to pay between $5,000 to $10,000 in total for planning, application, and review fees. This includes fees associated with the lot split application, environmental review, and any required studies or reports.

- **Surveying and Engineering Costs:** Budget around $3,000 to $6,000 for land surveying and engineering assessments, necessary for accurate lot split plans.

- **Utility Connection Fees:** These can vary widely, but expect to pay $10,000 to $20,000 if significant modifications or new connections are needed.

- **Legal and Administrative Costs:** Legal fees can range from $5,000 to $15,000, depending on the complexity of your project and any negotiations needed.

### Step-by-Step Guidance:

1. **Initial Consultation:** Start by consulting with a local architect or planner experienced in Long Beach’s SB-9 projects. They can provide a feasibility study to ensure your lot meets all necessary criteria.

2. **Engage with City Planners:** Schedule a pre-application meeting with Long Beach’s Planning Department to discuss your proposal and get feedback on compliance with local standards.

3. **Conduct a Land Survey:** Hire a licensed surveyor to delineate your lot boundaries and propose a lot split layout.

4. **Prepare and Submit Applications:** Work with your architect to prepare detailed plans and submit them alongside your application to the city.

5. **Handle Environmental Reviews:** If required, conduct any necessary environmental reviews, especially if your property is near sensitive habitats or geological features.

6. **Finalize Permits and Begin Construction:** Once approved, secure building permits and begin construction. Engage with reputable contractors familiar with local building codes.

### Tips and Warnings:

- **Plan for Contingencies:** Always budget an additional 10-15% for unforeseen expenses or delays.

- **Neighborhood and Community Relations:** Consider engaging with your neighbors early in the process to address any concerns, which can help smooth the approval process.

- **Stay Informed:** Regulations can change, so regularly check for updates in local ordinances or state laws that might affect your project.

### Next Steps and Resources:

- **Long Beach Planning Department Website:** Regularly check for updates on local guidelines.

- **Local ADU Professionals:** Consider hiring professionals who specialize in ADU and SB-9 projects in Long Beach for seamless navigation through the process.

- **Community Workshops:** Attend local workshops or webinars on SB-9 and ADU development for additional insights and networking opportunities.

By carefully planning and leveraging the flexibility provided under SB-9, you can effectively increase your property's value and create a sustainable income stream. Best of luck with your project in Long Beach!

Warm regards,

[Your Name]
ADU Consultant and Long Beach Expert
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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.

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Attached ADU

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

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  • Shared utility connections
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Garage Conversion

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

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JADU

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

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Upper Floor ADU

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

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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
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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. 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.

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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

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Cascade ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 1,200 sq ft
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Sequoia ADU Floor Plan - 3 Bedroom, 2 Bathroom
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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
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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
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Our experts will provide a detailed cost breakdown for your specific Long Beach property.

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Complete Guide to SB-9 (Lot Splits) ADUs in Long Beach, CA

Understanding SB-9 (Lot Splits) for ADU Projects

ADU development in Long Beach, CA involves numerous considerations specific to sb-9 (lot splits). Understanding local requirements, best practices, and potential challenges helps ensure project success.

Each ADU project is unique, with specific circumstances that influence design, permitting, and construction decisions. Professional guidance helps navigate these complexities and achieve optimal outcomes.

The GatherADU team has extensive experience with sb-9 (lot splits) aspects of ADU development and can provide expert assistance throughout your project.

SB-9 (Lot Splits) 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 SB-9 (Lot Splits)

The GatherADU team has helped hundreds of homeowners navigate sb-9 (lot splits) challenges successfully. Our experience reveals common patterns, effective strategies, and potential pitfalls to avoid.

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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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SB-9 (Lot Splits) 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.