San Diego ADU Experts | (858) 434-7166 | CSLB #1054602 | California ADU Law Specialists
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San Diego ADU Construction

Build passive income with an Accessory Dwelling Unit. Garage conversions from $80K. New construction from $150K. We handle design, permits, and construction.

🏠 Garage Conversions 🔨 New Construction 📋 Permit Experts 💰 Financing Available
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📈 San Diego ADU ROI
Monthly Rent Range$1,500-$3,500
Annual Income$18K-$42K
Property Value Increase+20-30%
Typical ROI Period4-7 Years

ADU Types & Costs (San Diego 2025)

🚗
Garage Conversion
$80K-$150K
  • Use existing structure
  • 400-600 sq ft typical
  • 3-4 month timeline
  • No parking replacement needed
  • Fastest permit approval
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🏡
Detached ADU
$150K-$250K
  • New backyard construction
  • Up to 1,200 sq ft
  • 6-9 month timeline
  • Full kitchen & bath
  • Highest rental value
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Luxury ADU
$250K-$350K+
  • Premium finishes throughout
  • 800-1,200 sq ft
  • Custom architecture
  • High-end appliances
  • $3,000-$4,500/mo rent
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ADU Construction Timeline

1

Site Assessment

Free evaluation of your property. We determine ADU feasibility, size options, and provide preliminary pricing. (1-2 weeks)

2

Design & Permits

Architectural plans, engineering, and permit submission to City of San Diego. We handle everything. (60-90 days)

3

Construction

Foundation, framing, MEP, finishes. Regular progress updates. Garage: 3-4 mo. New build: 4-6 mo.

4

Final Inspection

City inspection, certificate of occupancy, and handover. Your ADU is ready for occupancy or rental!

California ADU FAQs

How much does an ADU cost in San Diego?

ADU costs in San Diego range from $80,000-$150,000 for garage conversions, $150,000-$250,000 for detached ADUs, and $250,000-$350,000+ for luxury units. Costs vary by size, finishes, and site conditions. Use our ADU calculator for a personalized estimate.

How long does it take to build an ADU in San Diego?

Garage conversions take 3-4 months of construction. New construction ADUs take 6-9 months. Add 60-90 days for permit approval in San Diego. Total timeline is typically 6-12 months from start to move-in.

How much rent can I charge for an ADU in San Diego?

ADU rent in San Diego ranges from $1,500-$3,500/month depending on size, location, and finishes. Coastal areas (La Jolla, Pacific Beach) command $2,500-$4,000+/month. A well-designed 600 sq ft ADU can generate $24,000-$36,000/year.

Can I build an ADU on my property in San Diego?

Most San Diego residential properties can have at least one ADU. Under California law (AB 68, SB 9), single-family lots can typically add both an ADU (up to 1,200 sq ft) and a Junior ADU (up to 500 sq ft within existing structure). We provide free site assessments to evaluate your options.

Do I need to provide parking for an ADU?

No! California law eliminated parking requirements for ADUs within 1/2 mile of public transit or in historic districts. Most San Diego ADUs don't require replacement parking.

Start Earning Rental Income with an ADU

Free site assessment and feasibility study. Learn what you can build and potential rental income.

Calculate ADU Cost Call (858) 434-7166