Detached ADU near San Marcos, CA

HSP ADU Builders is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs, and in-law suites. They guide homeowners through design, permitting, and construction of accessory dwelling units.

Experienced ADU contractor offering a structured process: site assessment, custom design options, transparent cost estimates, permit guidance, and financing support. Specializing in detached ADUs, garage conversions, and in-law suites.

3 Day Kitchen & Bath is a trusted ADU contractor in San Diego offering full-service accessory dwelling unit construction. From garage conversions to detached ADUs, they manage every project phase with a structured, professional approach.

JL Building Group builds ADUs, granny flats, and garage conversions across San Diego County, including Carlsbad, Escondido & Chula Vista. They handle permits, design, and construction for rental units or family living spaces.

Pixel Arch LLC, Glendale CA, offers residential architecture services including custom home design, ADUs, garage conversions, duplexes & remodeling. Permit-ready plans, Title 24 reports & 3D renderings for California clients.

Lunasol Construction is a San Diego ADU contractor specializing in detached ADUs, garage conversions, and JADUs. They offer custom designs for in-law suites, rental units, and granny flats, helping homeowners add value and living space.

Armstrong Builders Inc. is a licensed ADU contractor in Greater San Diego specializing in accessory dwelling units, granny flats, and casitas. They offer full design-build services, custom floor plans, early price locks, and in-house teams.

TNT Design & Build specializes in ADUs, garage conversions & room additions in San Diego's North County. 15 years experience, in-house management, free architectural design, prices from $325/sqft with guaranteed budget & timeline.

Streamline Design Group offers ADU design and permitting in San Diego, covering detached, attached, JADU, garage conversions, and multi-family units. Referenced in the State ADU handbook, they deliver permit-ready plans at 40–60% less than architect fees.

AMDEN HOMES - Design & Build is a San Diego ADU contractor with 20+ years of experience. They specialize in accessory dwelling units, guest houses, and remodels across San Diego County, offering full design-to-build services.

Full Circle Builders offers custom ADU construction in Riverside County & the Inland Empire. Detached ADUs start at $185,000 (590 sq ft, 1BD/1BA). Container homes also available. Turn-key builds, permitting assistance included.

EG Construction is a trusted San Diego ADU builder offering full-service design, permits & construction. They provide a Price Guarantee & 60-Day Completion Guarantee. Serving all of San Diego County. License #864642.