Can I convert my garage to an ADU in Torrance?

William Jones
October 19, 2025 at 10:23 PM
Garage Conversion Torrance, CA
Hello everyone,

I'm a homeowner in Torrance, California, and I'm seriously considering converting my detached two-car garage into an ADU. My lot is around 6,500 square feet, and I think the space could be perfect for an additional living area or rental unit. I've done some preliminary research and found that California has been encouraging ADUs to address housing shortages, which sounds promising. However, I'm still unsure about a few details and would appreciate some expert advice.

Firstly, are there specific zoning regulations in Torrance that could affect my ability to convert the garage? I've heard that some areas have restrictions based on lot coverage and setbacks, and I'm worried about any potential roadblocks.

Secondly, I'm working with a budget of about $70,000. Is this realistic for a garage conversion in this area, considering costs for utilities hookup, permits, and construction? I want to make sure I'm not underestimating the financial side.

Additionally, what are the parking requirements once the garage is converted? I still need parking space for my car and am concerned about meeting city requirements.

Lastly, if anyone has gone through this process in Torrance recently, do you have any tips or things you wish you knew beforehand? Any help or insights would be greatly appreciated!

Thanks in advance!

1 Answer

Lisa Rodriguez
October 19, 2025 at 05:27 PM
Hello and thank you for reaching out with your question about converting your garage into an ADU in Torrance. You've taken the right step in considering this, as California has indeed been promoting ADUs to help address housing shortages. Let’s dive into your queries one by one.

### Zoning Regulations in Torrance

**Zoning and Lot Coverage:** Torrance, like many California cities, has embraced ADUs due to state laws like SB-9 and AB-68, which override many local regulations to facilitate ADU development. However, local zoning ordinances still play a role, particularly regarding lot coverage and setbacks. In Torrance, you typically need to maintain a certain amount of open space. Generally, your garage conversion should not exceed 1,200 square feet or 50% of the existing dwelling if it’s bigger. Ensure you have at least 4 feet from the rear and side property lines.

**Setbacks and Restrictions:** For garage conversions specifically, the state mandates reduced setbacks, especially when converting existing structures. Torrance might require maintaining existing setbacks if the garage already conforms, but always verify with the local planning department.

### Budget Considerations

**Cost Estimates:** A budget of $70,000 for a garage conversion in Torrance is on the low end but not impossible. On average, garage conversions can range from $60,000 to $100,000+ depending on the level of finish, utility upgrades, and any unforeseen structural changes. Here’s a breakdown:

- **Design and Permits:** $5,000 to $10,000
- **Construction Costs:** $40,000 to $60,000
- **Utilities Hookup (plumbing, electrical, HVAC):** $10,000 to $20,000

**Tips to Stay on Budget:** Consider using cost-effective materials and finishes, and ensure a detailed budget plan with your contractor. Also, look into potential state or local incentives for constructing ADUs, which could help offset costs.

### Parking Requirements

**Parking Replacements:** Under California state law, no additional parking is required if your ADU is within half a mile of public transit. However, since you're converting a garage, Torrance may require you to replace the parking spaces. This might mean adding parking on-site elsewhere, such as in your driveway. Check with Torrance’s latest ordinances or consult a local planner to clarify this requirement.

### Tips and Insights

**Engage with Professionals:** Hiring an architect or a specialized ADU consultant familiar with Torrance regulations can be invaluable. They can help navigate permits and design efficiently within your budget.

**Timeline Considerations:** Typically, the process from design to completion can take 6-12 months. This includes time for design, obtaining permits (which could take several months), and construction. Ensure you allocate time for potential delays in permitting or construction.

**Common Pitfalls:** One common mistake is underestimating the cost or complexity of utility hookups, especially if the garage is detached. Ensure your contractor has experience with ADUs and can handle these aspects.

### Next Steps

1. **Consult the Torrance Planning Department:** Start by discussing your project with them to understand specific local requirements and any recent changes to ADU policies.

2. **Hire a Professional:** Consider hiring an architect or a design-build firm specializing in ADUs to guide you through the process.

3. **Budget Planning:** Work with your contractor to finalize a realistic budget and timeline, keeping some contingency funds for unexpected expenses.

4. **Permitting:** Prepare to apply for necessary permits. This step can be streamlined if you have a professional who regularly works with the city.

5. **Stay Informed:** Regulations can evolve, so stay updated with state and local rules.

### Resources

- **California Department of Housing and Community Development:** Offers guidelines and updates on state laws regarding ADUs.
- **Torrance Planning Department:** Check their website or visit in person for the latest ADU ordinance updates and applications.

In conclusion, converting your garage into an ADU in Torrance is a feasible project with the right planning and resources. By being proactive and informed, you can successfully navigate this process and add a valuable asset to your property. Good luck, and feel free to reach out if you have more questions!
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Types of ADUs in Torrance, 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 Torrance, 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 Torrance.

Get Detailed Quote

Why Build an ADU in Torrance?

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 Torrance, 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.

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Types of ADUs in Torrance, CA

Understanding the different types of Accessory Dwelling Units available in Torrance, 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 Torrance ADU project.

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ADU Cost Guide for Torrance, CA

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

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Complete Guide to Garage Conversion ADUs in Torrance, CA

Understanding Garage Conversion for ADU Projects

ADU development in Torrance, CA involves numerous considerations specific to garage conversion. 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 garage conversion aspects of ADU development and can provide expert assistance throughout your project.

Garage Conversion Requirements in Torrance, CA

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

Torrance has 26 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 Torrance 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 Garage Conversion

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

Our database contains 87 questions related to Garage Conversion, with 87 expert answers providing comprehensive guidance for homeowners facing similar challenges.

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ADU Development Checklist for Torrance, 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
Garage Conversion Torrance ADU Planning Permits
Torrance, CA

This question is specific to Torrance, CA

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