Can I build an ADU myself in Glendale?

Maria Moore
October 19, 2025 at 10:23 PM
Construction & Building Glendale, CA
Hey everyone,

I'm a homeowner in Glendale, California, and I've been considering building an ADU (Accessory Dwelling Unit) on my property. My lot is about 6,500 square feet, and I've got a budget of around $150,000. I've done some preliminary research and understand that Glendale has made it easier to build ADUs due to new state laws, but I'm still a bit confused about the specifics.

Firstly, I'm curious if it's possible for me to take on the construction myself? I have some experience with DIY projects, but this is obviously a much bigger endeavor. Are there specific permits or licenses I would need to handle it personally, or would hiring a contractor be a requirement?

Also, does anyone know the current setback requirements for ADUs in Glendale? I want to ensure I’m maximizing the use of my space without infringing on local regulations.

Lastly, are there any particular architectural guidelines or design restrictions I should be aware of? I want to make sure that whatever I build complements the existing structure and stays compliant with city codes.

I'd really appreciate any insights or advice from anyone who’s been through this process in Glendale or knowledgeable experts. Thanks in advance!

1 Answer

Sarah Mitchell
October 19, 2025 at 05:44 AM
Hello!

Building an ADU (Accessory Dwelling Unit) in Glendale, California, is an exciting project, and it's great to hear you're considering taking it on. Given Glendale's efforts to streamline ADU construction following state regulations like SB-9 and AB-68, you're on the right track. Let’s delve into your questions and provide you with a comprehensive roadmap.

### Can You Build the ADU Yourself?

Yes, you can legally build an ADU yourself in Glendale, thanks to California's owner-builder laws. However, it's crucial to weigh your DIY experience against the complexity of such a project. Here’s what you need to know:

1. **Permits and Licenses**: As an owner-builder, you can apply for the required permits yourself. However, you’ll need to comply with all local zoning, building, and safety codes. The key permits include:
- **Building Permit**: Required for any new construction.
- **Electrical, Plumbing, and Mechanical Permits**: Specific to systems within the ADU.
- **Grading Permit**: If there are significant changes to the landscape.

2. **Experience**: Given your DIY background, consider whether you can manage complex tasks such as electrical work or plumbing. You might need to subcontract licensed professionals for these specific tasks.

3. **Time and Cost**: While DIY can save on labor costs, it often requires more time. Expect around 6-12 months from planning to completion, depending on your availability and construction complexity.

### Setback Requirements in Glendale

As of 2023, Glendale adheres to California’s state ADU laws, but with specific local nuances. Here's what you should know:

- **Rear and Side Setbacks**: The minimum setback is typically 4 feet from the side and rear property lines. However, always verify the latest city ordinances or any specific neighborhood overlays.
- **Front Setback**: ADUs usually cannot be placed in front of the primary dwelling within the front yard setback area.

### Architectural Guidelines and Design Restrictions

1. **Size Limits**: Under California law, ADUs can be up to 850 square feet for a one-bedroom and 1,000 square feet for more. However, Glendale might have additional FAR (Floor Area Ratio) restrictions, so check with the Planning Department.

2. **Design Consistency**: Your ADU should aesthetically complement your primary dwelling. This means considering similar roofing materials, paint colors, and architectural styles.

3. **Height Restrictions**: Generally, detached ADUs are limited to a height of 16 feet. If attached, they might be subject to different rules.

### Budget Considerations

With a budget of $150,000, you're in a good position, but careful planning is essential:

- **Construction Costs**: In Glendale, construction costs for ADUs average between $200 to $300 per square foot. Your budget should comfortably cover 500-750 square feet, depending on finishes and design complexity.
- **Additional Costs**: Include permit fees, utility hookups, landscaping, and potential impact fees if applicable.

### Tips and Warnings

- **Start with a Site Plan**: Engage a local architect or designer familiar with Glendale’s ADU requirements. They can help create a site plan that maximizes space while adhering to setbacks and design rules.
- **Consult with the Planning Department**: Before any work begins, confirm the requirements with Glendale’s Planning Department. They can provide the latest information and any unique neighborhood regulations.
- **Avoid Common Mistakes**: Ensure proper grading and drainage to prevent future water issues. Also, plan for adequate parking as required by local ordinances.

### Next Steps

1. **Research and Plan**: Gather detailed site information, existing property surveys, and concept designs.
2. **Consult Professionals**: Consider hiring a project manager or consulting with a local ADU specialist. They can guide you on complex aspects and recommend reliable subcontractors.
3. **Permit Application**: Submit your plans to the city for approval. This might take a few weeks, so anticipate this in your timeline.
4. **Construction**: Once approved, you can begin construction, starting with foundational work and moving through to utilities and finishes.

### Resources

- **Glendale Planning Department**: [Glendale’s official city website](https://www.glendaleca.gov/government/departments/community-development/planning-division) provides resources and contact information.
- **California Department of Housing and Community Development**: Offers guidance on statewide ADU regulations.

I hope this gives you a solid foundation to begin your ADU project. With careful planning and adherence to local codes, you’ll be well on your way to successfully adding a valuable living space to your property. Good luck, and feel free to reach out with more questions!

Best regards,
[Your Name]
ADU Consultant
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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.

  • 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 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%
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 Glendale, 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
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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
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
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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
Ready to Start Your ADU Project?

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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
Get Your Personalized ADU Cost Estimate

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

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Complete Guide to Construction & Building ADUs in Glendale, CA

Understanding Construction & Building for ADU Projects

ADU development in Glendale, CA involves numerous considerations specific to construction & building. 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 construction & building aspects of ADU development and can provide expert assistance throughout your project.

Construction & Building 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 Construction & Building

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

Our database contains 70 questions related to Construction & Building, with 70 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
Construction & Building 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.