ADU Construction Southern California

ADU Construction in Orange County, San Diego, LA & Inland Empire

Veteran-Owned • B-Class Licensed • SDVOSB Certified (Service Disabled, Veteran Owned, Small business) 800 sq. ft. to 1,200 sq. ft. Backyard Homes & Junior ADUs – Turnkey from Permit to Keys

Why Choose McKnight for Your ADU

• Full in-house crews – no subcontractors

• Same team that builds Tier III data centers brings mission-critical precision to your backyard

• We handle permitting (Garden Grove, Anaheim, Riverside, San Bernardino fast-track experts)

• Fixed-price contracts – no surprises

Recent ADU Project – Garden Grove 800 sq. ft.

• Completed 2025

• Drywall, stucco, electrical, plumbing, HVAC

• Passed final inspection first time

What’s Included

• Site evaluation & feasibility study (free)

• Architectural plans & engineering

• All permits & city approvals

• Complete construction (foundation to finish)

• Final occupancy certificate

Ready for Your ADU in 2026? Get Your Free Site Assessment & Quote Today

Serving: Garden Grove • Anaheim • Riverside • San Bernardino • Orange County • Inland Empire ★ SDVOSB Certified • Licensed • Bonded • Insured

Ready to Build the Future?
Whether it's a backyard ADU or a hyperscale data
center, McKnight delivers — on time, on budget, veteran-led.

Click to Verify Our SBA Certification