How to Get an ADU Permit in Chula Vista

Why Build an ADU in Chula Vista?

With its growing population and limited housing inventory, Chula Vista—the second-largest city in San Diego County—is actively encouraging the construction of Accessory Dwelling Units (ADUs). Whether you’re adding a backyard unit for rental income, housing relatives, or maximizing your property’s value, an ADU is a smart investment in 2025.

Thanks to California’s state ADU laws and supportive local ordinances, the City of Chula Vista offers a relatively streamlined process for getting your ADU project approved and permitted—if you follow the right steps.

What Is an ADU?

An Accessory Dwelling Unit (ADU) is a self-contained residential unit built on the same lot as a primary home. ADUs in Chula Vista can be:

🏠 Detached (a new structure in your backyard)

🧱 Attached (an addition to the main home)

🚗 Garage conversion (existing garage transformed into a living space

🛏️ Junior ADU (JADU) — an efficiency unit up to 500 sq. ft. within the primary residence

Chula Vista ADU Zoning & Building Requirements (2025)

The City of Chula Vista aligns with California ADU laws but also enforces its own zoning rules. Here's a summary of what you need to know:

Requirement	Standard
Zoning	Allowed in most residential zones (R-1, R-2)
Max Size (Detached ADU)	Up to 1,200 sq. ft.
Max Size (JADU)	500 sq. ft.
Height Limits	16–25 ft depending on zone and lot size
Setbacks	4 ft side and rear setbacks
Parking	Not required if near public transit or in converted garage
Garage Conversions	Must meet open space and lot coverage standards
Fire Sprinklers	Required only if the primary home has them

Step-by-Step: How to Get an ADU Permit in Chula Vista

1. Determine Property Eligibility

Before designing anything, check:

Your property’s zoning designation
Lot size and dimensions
Existing structures and utilities
Proximity to transit corridors

2. Decide on the Type of ADU

Choose from:

Garage conversion ADU – cost-effective and faster approval
Detached ADU – more privacy and flexible size
Attached ADU – adds value directly to the primary structure
Junior ADU – low-cost option within the existing home

3. Hire an ADU Designer or Architect

Prepare detailed plans that include:

Site plan
Floor plan
Elevations
Title 24 energy compliance report
Structural details
Plumbing, electrical, and mechanical layouts

Working with professionals who know Chula Vista’s permitting process can save you time and money.

4. Submit Permit Application

Submit plans to Chula Vista’s Development Services Counter:

📍 276 Fourth Ave, Chula Vista, CA 91910
🌐 Or via the online permitting portal

Required documents may include:

ADU application form
Full plan set (PDF & physical copies)
Title 24 energy report
Stormwater compliance forms
Construction waste management plan

5. City Plan Review (60-Day Timeline)

California mandates that cities must approve or deny ADU permits within 60 days of submission, provided the application is complete.

Plan check includes:

Zoning compliance
Structural integrity
Fire and egress safety
Accessibility review (if applicable)

6. Pay Permit Fees

Estimated costs for ADU permits in Chula Vista:

Fee Type	Estimated Cost
Plan Check Fee	$1,000 – $2,500
Building Permit Fee	$2,000 – $4,000
School Impact Fees	~$3–$4 per sq. ft. (if over 500 sq. ft.)
Sewer & Utility Fees	Varies by scope
Total (typical range)	$4,000 – $12,000+

7. Construction & Inspections

Once permits are approved:

Begin construction per approved plans
Schedule city inspections for foundation, framing, plumbing, electrical, and final
Address any corrections as needed

8. Final Approval & Occupancy

When the final inspection is passed:

The City issues a Certificate of Occupancy
Your ADU is now legally habitable and rentable

You can now list the unit for rent, house family, or use it as a guest suite.

Benefits of Building an ADU in Chula Vista

✅ Generates passive rental income
✅ Creates affordable housing for aging parents, adult children, or caregivers
✅ Boosts property resale value
✅ Avoids need for costly lot subdivision
✅ Often exempt from additional parking and impact fees

ADUs are also an excellent solution for multigenerational living, especially in tight housing markets like Chula Vista.

FAQ

How long does it take to get an ADU permit in Chula Vista?

The City must approve or deny your application within 60 days of receiving a complete plan set.

Do I need extra parking for my ADU?

No additional parking is required if your home is within ½ mile of public transit or if converting an existing garage.

Can I convert my garage into an ADU in Chula Vista?

Yes. Garage conversions are fully permitted and often the fastest and most cost-effective ADU option.

Are impact fees waived in Chula Vista?

Yes, for ADUs under 750 sq. ft., you are exempt from school and impact fees under California law.

Do I need a separate utility connection for an ADU?

No. Shared utility connections with the main home are allowed, but separate connections may be installed at your discretion.