Adding a detached Accessory Dwelling Unit (ADU) to your property in Costa Mesa is one of the smartest investments you can make. Whether you need more space for family, want a backyard guesthouse, or plan to rent it out for steady income, a detached ADU provides flexibility and long-term value.
At LS Contractor, we specialize in detached ADU construction in Costa Mesa and across Orange County. With over 200 completed projects, we understand local zoning laws, the permit process, and how to deliver on time—without hidden costs.
👉 Book a Free Consultation for Your ADU Today and explore how a detached unit can transform your property.
Benefits of Building a Detached ADU
A detached ADU isn’t just extra square footage—it’s a strategic addition with multiple advantages.
✅ Privacy and Independence: Unlike garage conversions or attached ADUs, a detached unit offers complete separation for tenants or family members.
✅ Rental Income: Detached ADUs in Orange often rent for $1,800–$2,800 per month, depending on size and finishes.
✅ Property Value Boost: Homes with detached ADUs can increase in value by 20–30%.
✅ Flexible Use: Perfect as a backyard cottage, granny flat, or rental unit.
✅ Energy Efficiency: We build using California-compliant standards, ensuring long-term savings.
Snippet Answer:
A detached ADU in Orange offers privacy, rental income, and a 20–30% property value boost while adding flexible living space.
Cost and Design Options for Detached ADUs
Detached ADUs vary in style, size, and budget. LS Contractor offers full design-build services to fit your needs.
Typical Costs in Orange County
- Construction cost range: $200,000 – $350,000
- Cost per sq ft: $250 – $400
Design Options
- Modern backyard cottages (400–600 sq ft)
- Family-oriented granny flats (600–900 sq ft)
- Premium detached ADUs with 1–2 bedrooms (1,000–1,200 sq ft)
Custom Features Available
- Energy-efficient systems (solar-ready, insulation upgrades)
- Private patios or decks
- High-end finishes or rental-focused designs
Snippet Answer:
Detached ADUs in Orange County typically cost $200,000–$350,000 and range from 400–1,200 sq ft, depending on design and zoning.
Our Step-by-Step ADU Construction Process
At LS Contractor, we make the ADU journey simple, from the first consultation to final delivery.
1. Free Consultation & Property Review
We visit your Orange home to assess backyard space, zoning restrictions, and your goals—whether family use or rental income.
2. Custom ADU Design
Our in-house team prepares tailored designs that maximize space and comply with Orange, CA zoning rules.
3. Permits and Approvals
We handle all permit submissions and approvals, ensuring compliance with city regulations.
4. Construction
Our experienced crew builds your ADU with quality materials, clear timelines, and efficient project management.
5. Final Delivery
We conduct a detailed walkthrough with you to guarantee satisfaction before final handover.
Snippet Answer:
LS Contractor manages detached ADUs in Orange from consultation and design through permits, construction, and final walkthrough.
Detached ADU vs. Garage Conversion
Many homeowners wonder if a garage conversion is cheaper than a detached ADU.
- Garage Conversion: Lower initial cost ($80,000–$150,000), but limited size and privacy.
- Detached ADU: Higher cost, but offers full privacy, larger layouts, and better long-term ROI.
Snippet Answer:
Garage conversions cost less upfront, but detached ADUs offer more space, privacy, and higher property value in the long run.
Why Choose L Square Construction in Costa Mesa, CA?
- Local Experience: Over 200 ADUs built in Orange County.
- Specialized in Detached ADUs: Focused expertise, not general contracting.
- Knowledge of Orange Zoning Laws: Smooth permitting process.
- Transparent Pricing: No hidden fees or unexpected costs.
- Proven Results: Projects completed on schedule.
Real Client Story – Orange, CA:
“We compared garage conversions and detached ADUs. L Square Construction explained everything clearly and delivered our ADU exactly as promised.” – J. Martinez
Snippet Answer:
Homeowners in Orange choose L Square Construction for detached ADUs because of local expertise, transparent costs, and proven on-time delivery.
Frequently Asked Questions (FAQ)
Do detached ADUs increase property value?
Yes. A detached ADU can raise property value by 20–30%, depending on location and size.
How big can a detached ADU be in Orange?
Detached ADUs in Orange can typically range from 400 to 1,200 sq ft, depending on zoning and lot size.
How long does it take to build a detached ADU?
Most projects take 6–9 months, including permits and construction.
Is a detached ADU better than a garage conversion?
Yes, if privacy, rental income, and long-term value are priorities. Garage conversions are cheaper but more limited.
Call to Action
Building a detached ADU in Orange is a smart way to expand your property’s potential—whether for family use or rental income. With L Square Construction, you get expert design, full permit handling, and trusted construction management.
👉 Book a Free Consultation for Your ADU Today and start planning your detached ADU with Orange’s trusted specialists.
