What are Glendale's specific SB-9 regulations?

Sarah Moore
October 19, 2025 at 10:14 PM
SB-9 (Lot Splits) Glendale, CA
Hi everyone,

I'm a homeowner in Glendale, California, and I'm trying to wrap my head around the specifics of SB-9, particularly regarding lot splits. My property is just under 7,000 square feet, and I'm considering splitting the lot to build an additional unit to help with my retirement income. I've read through some of the state guidelines, but I'm still confused about how they apply locally here in Glendale.

First, I've heard that Glendale has some unique requirements or restrictions beyond the state law. Can anyone clarify what these might be? For example, is there a minimum lot size specific to our city after the split?

Additionally, my home is in a neighborhood that’s been called a potential historic district. How might this affect my ability to do a lot split under SB-9? I've come across some mentions of historic preservation potentially limiting development.

Also, I'm worried about the budget. Do any of you know if there are typical costs that come with meeting the city's requirements for infrastructure, like water and sewer connections, that might not be obvious at first glance?

Lastly, I'm curious if there are any community forums or local government sessions where I could get more personalized advice on this matter. I’ve done some digging online, but expert guidance would be invaluable. Any pointers would be greatly appreciated!

Thanks in advance for your help!

1 Answer

Argi A
October 18, 2025 at 04:03 AM
Hello and thank you for reaching out with your questions about SB-9 and lot splits in Glendale. Navigating these regulations can indeed be daunting, but I'm here to provide you with some clarity and guidance tailored to your situation.

### Understanding Glendale's SB-9 Regulations

**1. Local Requirements Beyond State Law:**
SB-9 allows for lot splits and the construction of additional units on single-family lots, but these state regulations are just the baseline. Each city, including Glendale, can impose additional requirements. Here’s what you need to know:

- **Minimum Lot Size:** While SB-9 does not set a minimum lot size for a split, Glendale may have specific zoning ordinances that could affect your plans. Generally, many California cities require post-split lots to be at least 1,200 square feet, but it's crucial to verify this with Glendale's Planning Department directly.

- **Owner Occupancy Requirement:** SB-9 mandates that one of the lots must be owner-occupied for at least three years following the lot split. This means you’ll need to plan accordingly if you intend to move immediately after development.

- **Design Standards:** Glendale may have specific design guidelines to ensure new developments are in harmony with the existing neighborhood aesthetics. These can include setbacks, height restrictions, and parking requirements.

**2. Potential Historic District Implications:**
If your property is within a potential or designated historic district, additional layers of regulation will apply. Generally, any modifications, including lot splits, may require review by Glendale’s Historic Preservation Commission.

- **Historic Review Process:** This process ensures that changes are compatible with the historic character of the neighborhood. You might need to submit detailed plans and possibly conduct a historical impact assessment.

### Financial Considerations

**1. Infrastructure Costs:**
When planning a lot split, budget for potential upgrades to infrastructure, which can include:

- **Water and Sewer Connections:** Costs for new connections in Glendale typically range from $5,000 to $15,000 per connection, depending on proximity to existing lines and the need for any upgrades to accommodate increased capacity.

- **Utility Upgrades:** You may also need to budget for electrical and gas line extensions or enhancements, which can add another $3,000 to $10,000.

- **Permit Fees and Surveys:** Expect to pay several thousand dollars in permit fees, surveys, and possibly environmental reviews. A reasonable estimate for Glendale could be around $10,000 to $20,000 for all the necessary documentation and permits.

### Timeline

- **Initial Planning and Approvals:** From initial consultation to receiving city approval, expect a timeline of 6 to 12 months. This includes time for necessary reviews, especially if there are historic preservation considerations.

- **Construction:** Once approved, construction timelines for new units can range from 6 months to over a year, depending on the complexity of the project and contractor availability.

### Next Steps and Resources

**1. Engage with Local Resources:**
- **Glendale Planning Department:** Schedule a pre-application meeting to discuss your specific property and get detailed guidance on local requirements.
- **Community Meetings:** Check the city’s website for upcoming planning commission meetings or town halls. These sessions can be invaluable for understanding community sentiment and getting real-time advice.

**2. Consult with Professionals:**
Given the complexity of the regulations and the significant investment, consider hiring a local architect or consultant experienced with Glendale's zoning laws and SB-9. They can provide tailored advice and help navigate the approval process.

**3. Online Research and Networking:**
- **Local Forums and Social Media Groups:** Join Glendale-based homeowner forums or social media groups where residents share their experiences with SB-9 projects.
- **Workshops:** Look for webinars or workshops hosted by real estate or legal experts focusing on California’s housing laws.

### Additional Tips

- **Stay Informed:** Regulations and local interpretations can evolve, so keeping an eye on Glendale City Council agendas and updates is crucial.
- **Budget for Contingencies:** Always plan for unexpected costs, typically around 10-20% of your project’s total budget.

By taking a strategic approach and utilizing local resources, you can effectively navigate the complexities of SB-9 in Glendale. I hope this provides a solid foundation for moving forward with your project, and I wish you success in creating a beneficial addition to your property. If you have further questions or need more personalized advice, don't hesitate to reach out to local experts or the city’s planning department.
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Types of ADUs in Glendale, 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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  • Uses existing structure
JADU

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

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  • 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.

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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 Glendale, 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 Glendale.

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Why Build an ADU in Glendale?

Financial Benefits
Rental Income: Generate $18,000-$48,000 annually
Property Value: Increase home value by 20-30%
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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
The Cascade

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Summit ADU Floor Plan - 2 Bedroom, 2 Bathroom
2 Bed 2 Bath 950 sq ft
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Brookside ADU Floor Plan - 2 Bedroom, 2 Bathroom
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Crestline ADU Floor Plan - 3 Bedroom, 2 Bathroom
3 Bed 2 Bath 1,500 sq ft
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Types of ADUs in Glendale, CA

Understanding the different types of Accessory Dwelling Units available in Glendale, 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 Glendale, CA

Understanding ADU costs helps you budget effectively and make informed decisions about your project in Glendale, 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 Glendale property.

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

Understanding SB-9 (Lot Splits) for ADU Projects

ADU development in Glendale, 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 Glendale, CA

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

Glendale has 102 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 Glendale 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.

Professional consultation early in your project can prevent costly mistakes and delays. We've seen how proper planning in the sb-9 (lot splits) phase saves both time and money throughout the entire ADU development process.

Our database contains 85 questions related to SB-9 (Lot Splits), with 85 expert answers providing comprehensive guidance for homeowners facing similar challenges.

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ADU Development Checklist for Glendale, 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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Related Topics
SB-9 (Lot Splits) Glendale ADU Planning Permits
Glendale, CA

This question is specific to Glendale, CA

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