Create space. Generate income. Build smarter.
Looking to expand livable space, support multigenerational living, or earn rental income?TAG Roofing & Solar provides full-service ADU construction and garage conversion solutions across Greater San Diego. From detached backyard cottages to garage-to-studio makeovers, our licensed general contractors manage everything—from zoning and design to permits, build-out, and final inspection.
Most ADUs are completed in 3–6 months, depending on size, location, and city permit timelines.
Why Build an ADU with TAG?
- Increase property value and rental income
- Comply with SB-9 and ADU-friendly zoning laws
- Energy-efficient builds with solar-ready design
- Seamless garage-to-living space conversions
- Full-service permitting, plans, and construction
- Local experience across San Diego County cities
- ADU grant guidance and cost-reducing options
What to Expect When Hiring TAG
- Feasibility Walkthrough & Consultation: We assess your lot size, garage condition (if applicable), utility access, and local zoning to confirm what's allowed.
- Custom Design + Preliminary Estimate: We help you select the best layout—studio, 1-bed, 2-bed—whether custom or modular, and provide a concept-level cost range.
- Permitting & Engineering Plans: We handle architectural drawings, Title 24 reports, and city submissions. Most jurisdictions allow expedited ADU permitting.
- Site Prep & Construction: Our crews manage demolition, grading, trenching, foundation, framing, and full vertical construction—meeting energy and code compliance.
- Interior Buildout & Inspection: We complete plumbing, electrical, HVAC, insulation, drywall, painting, windows, and finish work. We coordinate and pass final inspections.
- Handover & Walkthrough: You’ll receive keys, warranty documents, and a move-in checklist. Solar and roofing upgrades are available at this stage.
Timeline & Cost Range
Time to Build: 3–6 months (based on design, permits, and site conditions)
Cost Range: $125,000–$325,000+
Pricing Disclaimer: Cost ranges are estimates. Final pricing depends on layout, materials, and site conditions. A detailed proposal is provided after inspection.
Financing Options
- HELOCs
- ADU-specific construction loans
- CalHFA ADU Grant (up to $40K)
All financing is subject to approval. We’ll help you find the most efficient path to funding—no pressure, no surprises.
Ready to unlock the potential of your property?
TAG Roofing & Solar will guide your ADU or garage conversion from vision to move-in.
Call today or request a quote online to start your custom consultation.
Key FAQs
How much does it cost to build an ADU in San Diego?
Costs start around $125K for a basic garage conversion and can exceed $325K+ for a larger, ground-up 2-bedroom unit.
Can I rent out my ADU?
Yes. Most San Diego County cities allow ADUs to be rented long-term. We help you ensure full compliance.
How do I finance my ADU?
We connect clients to CalHFA ADU grants ($40K), HELOCs, and low-interest loans designed specifically for ADU development.
Is my detached garage eligible?
Most are. We evaluate structural integrity, setback requirements, and access to sewer and electrical connections.
