ADU Builders in Honolulu, Hawaii
Add rental income, multigenerational living, or guest space to your Oahu property with a fully permitted Accessory Dwelling Unit. Ward Design Center is your turnkey ADU builder — handling design, DPP permits, and construction from start to finish.
Our Turnkey ADU Process
1. Feasibility & Design
Free site check, lot analysis, and custom architectural design.
2. Permits & Engineering
Full DPP submission, structural engineering, and revisions.
3. Construction
Site prep, foundation, framing, MEP, and finish-out by our licensed crew.
4. Final Inspection & Rental Ready
Sign-off, utility hookups, and walk-through. Ready to occupy or rent.
Why Build an ADU on Oahu
Generate $2,000–$3,500/month in long-term rental income
Increase property value by 25–35% (Honolulu market average)
House aging parents or adult children on the same lot
Up to 800 sq ft permitted under Honolulu's ADU ordinance
Faster ROI than full home additions
Eligible for separate utility metering
FAQ
Honolulu ADU Builder FAQs
Common questions about ADU construction, permitting, and rental rules on Oahu.
Ready to Build Your Honolulu ADU?
Free feasibility check on your property. We'll confirm zoning, size limits, and ballpark pricing before you commit.