We’ve built more than extra square footage, we’ve built better solutions for families, income needs, and future plans.
Adding square footage or an independent dwelling unit can dramatically increase your home’s value and usability in South Orange County. At Tuscany Builders CA, we specialize in full-service ADU construction and room additions, managing everything from site planning and permitting to design, engineering, and construction so you don’t have to worry about the complexities of setbacks, soil reports, HOA approvals, or city inspections.


ADUs (Accessory Dwelling Units) are independent units on your property: backyard cottages, pool or guest houses, garage conversions, or attached suites.

Room Additions are expanding your main home: a larger kitchen or living area, new bedroom, or extra bath. Can be single or second story.
Can't tell? That's a professional Design & Build room addition!
Schedule your Remodel Jumpstart design consultation today and let us walk you through the full ADU/addition journey, from zoning and budgets to move-in day.

✅ Multigenerational Living
Create a private space for family, while keeping everyone close under one property.
✅ Rental Income Potential
Earn passive income with a fully equipped, code-compliant ADU or converted garage unit.
✅ Increased Property Value
Well-planned additions and ADUs significantly boost resale value in high-demand South Orange County neighborhoods.
✅ Upgraded Lifestyle
Enjoy a custom design tailored to your family’s needs, whether it’s a new master suite, studio, or guest unit.
✅ Extra Space for Work or Creativity
Build a quiet, dedicated area for remote work, fitness, or hobbies, without leaving home.
Please reach us at tbuildersca@gmail.com if you cannot find an answer to your question.
Yes. Most cities in South Orange County allow ADUs to be rented out on a long-term basis (30 days or more) once they meet all building and safety codes. Tuscany Builders CA ensures your ADU is fully compliant with city zoning, permitting, and state ADU laws, so you can confidently rent your space or use it for family living.
In many cases, yes, especially for garage conversions or older homes. ADUs often require dedicated electrical panels, new plumbing lines, and utility connections. Our team evaluates your home’s existing systems and designs upgrades that meet current code while keeping efficiency and cost in mind.
Absolutely. Tuscany Builders CA handles all permitting, architectural drawings, engineering, and submittals to local city departments and agencies like OCFA (Orange County Fire Authority). We also assist with HOA and neighbor approvals, ensuring your project moves smoothly from concept to construction.
Because ADUs and additions must meet strict building codes, setback rules, and soil or grading requirements, they are not suited for DIY work. Hiring a licensed design-build contractor like Tuscany Builders CA saves time, prevents costly mistakes, and ensures your project passes every inspection.
A Junior ADU (JADU) is a smaller unit, typically up to 500 sq. ft. created within the existing footprint of your home, such as a converted bedroom or attached garage. A standard ADU can be detached or attached and up to 1,200 sq. ft., often including a full kitchen and private entrance. Tuscany Builders CA designs both types to fit your property, budget, and lifestyle needs.
Most ADUs take about 4–8 months from permit approval to completion, depending on site conditions and city review times. Room additions can vary, but our proven five-step process — Meet, Design, Plans, Build, Enjoy keeps projects efficient and predictable.
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