ADU Construction · South Orange County
Your property has more potential than you think.
Services·ADU Construction
An Accessory Dwelling Unit is one of the smartest investments a South Orange County homeowner can make — rental income, multigenerational living, or long-term property value. Tuscany Builders manages everything from site planning and permitting to design, engineering, and construction. You don't have to worry about setbacks, soil reports, HOA approvals, or city inspections. We handle it all.
ADU Types We Build
Six types of ADUs.
One team to build them all.
Detached ADU
A fully independent backyard cottage, guest house, or pool house with its own entrance, kitchen, and living space. The most flexible and highest-value ADU type — and the most popular in South Orange County.
Garage Conversion ADU
Transform an underused attached or detached garage into a fully permitted, code-compliant living unit. One of the most cost-effective ways to add rental income or family housing without expanding your footprint.
Attached ADU
An addition connected to your main home with a private entrance — ideal for multigenerational living or a rental suite that stays close but feels independent. Can be single or two-story.
Junior ADU (JADU)
Up to 500 sq. ft. created within your home's existing footprint — a converted bedroom, attached garage, or interior space. Lower cost, faster permitting, same quality finish.
Two-Story ADU
Maximize square footage on a smaller lot with a two-story detached ADU. Tuscany Builders handles all structural engineering, framing, and finish work — designed to complement your main home's architecture.
Pool House / Guest Suite
A permitted ADU that doubles as a pool house or luxury guest suite. Designed to integrate seamlessly with your outdoor living space while meeting all South OC city requirements for habitable units.
Why Build an ADU
More than extra space.
A smarter property.
Rental Income
Most South OC cities allow long-term ADU rentals (30+ days). A well-built ADU can generate $2,500–$4,500/month in rental income — offsetting your mortgage or funding retirement.
Multigenerational Living
Keep aging parents or adult children close while giving everyone privacy. An ADU on your property is the most flexible multigenerational housing solution available.
Property Value
A permitted, well-designed ADU adds significant resale value in high-demand South Orange County neighborhoods — often returning more than the cost of construction.
Home Office or Studio
A dedicated, separate space for remote work, creative projects, or a fitness studio — without the commute, and without sacrificing a bedroom inside your home.
Future Flexibility
Use it for family now, rent it later, or sell with it as a feature. An ADU gives your property options that a standard home simply doesn't have.
Our Process
From zoning check
to certificate of occupancy.
01
In-Home Consultation
Dino visits your property, reviews zoning, setbacks, lot coverage, and HOA requirements. We discuss your goals, budget, and the best ADU type for your specific property.
02
Design & Fixed-Price Proposal
We develop a custom layout plan and fixed-price estimate tailored to your property. No surprises — you know the full cost before we pull a single permit.
03
Permits & Engineering
Our team handles all architectural drawings, structural engineering, city submittals, HOA approvals, and OCFA coordination. California ADU law has streamlined the process — we know every shortcut.
04
Construction
Dino is on your jobsite every single day. All trades — framing, plumbing, electrical, finish work — are coordinated in-house for a seamless, on-schedule build.
05
Certificate of Occupancy
Final inspections, punch list, and certificate of occupancy. Your ADU is fully permitted, legally habitable, and ready to rent, use, or sell.
California ADU Law
California has made ADUs easier than ever to build.
Recent California legislation (AB 68, SB 9, AB 2221) has dramatically streamlined ADU permitting — reducing approval timelines, limiting HOA restrictions, and expanding where ADUs can be built. Tuscany Builders stays current on every change so your project moves as fast as the law allows.
Up to 1,200 sq. ft.
Maximum detached ADU size
4–8 months
Typical build timeline
$2,500–$4,500/mo
Typical South OC rental income
HOA-limited
HOAs cannot prohibit ADUs in CA
Where We Build
Serving all of South Orange County.
FAQ
ADU construction questions, answered.
Can't find your answer? Email us at [email protected] or call (949) 362-1876.
ADU Construction · South Orange County
Ready to explore your options?
Let's talk about your property and your goals. Dino will reach out within one business day to schedule an in-home visit anywhere in South Orange County.