Build an ADU in Vista, CA.
Cordada Construction helps homeowners across Vista and North County San Diego plan and build accessory dwelling units — detached, attached, and garage conversions.
One property, more ways to use it.
Most homeowners we talk to are solving a specific problem. An ADU tends to be the answer to more than one of them at once.
Rental Income
A second unit on a lot you already own can be rented out, turning unused yard or garage space into monthly income.
Family Close By
Parents, adult children, or in-laws get their own kitchen, bath, and front door — on the same property, not across town.
More Living Space
Room to spread out without moving, and without giving up the neighborhood, schools, and commute you already have.
Office or Guest Space
A quiet, separate building for working from home, hosting guests, or both, with real walls between work and the house.
Long-Term Flexibility
What starts as a rental can become a guest house, a home office, or family housing later. The building adapts as you do.
Detached, attached, or converted.
Which approach fits depends on your lot, your budget, and what you already have to work with. We build all of them.
Detached ADUs
A standalone unit built in the backyard with its own entrance, kitchen, and bath. The most private option, and usually the most flexible in layout.
Attached ADUs
A new unit built onto the existing house, sharing a wall but keeping a separate entrance. Often a good fit on narrower lots.
Garage Conversions
Turning an existing attached or detached garage into finished living space — insulation, drywall, plumbing, electrical, and a full kitchen and bath.
Existing Space Conversions
Bonus rooms, workshops, and other underused areas of the property reworked into a self-contained unit with its own systems.
ADU Additions
Expanding an existing unit or building onto one already on the property — adding square footage, a bedroom, or a second bath.
ADU Remodeling
Updating a unit that is already built — kitchens, bathrooms, flooring, and finishes brought up to current condition for living or renting.
What to expect, start to finish.
Five stages. You always know which one you are in and what happens next.
Property & Project Consultation
We walk the property with you, look at the yard, garage, access, and utilities, and talk through what you are hoping to build.
Planning & Scope
We define the size, layout, and finish level, then put together a written scope and estimate you can review line by line.
Design & Permit Coordination
We coordinate with the design and engineering professionals your project calls for, and work with them through the local permitting process.
Construction
Site work, foundation, framing, systems, and finishes. Our own crews and trades, scheduled and supervised in-house.
Final Walkthrough
We walk the finished unit with you, address the punch list, and hand over a space that is ready to live in or rent.
We know these lots and neighborhoods.
Cordada Construction is based in Vista and builds throughout North County San Diego. Working locally means we already know the terrain, the housing stock, and the local building departments our projects go through.
No two properties are alike. Whether an ADU makes sense on your lot — and how large it can be — depends on the specifics: zoning, lot configuration, utility locations, site access, setbacks, and the state and local requirements in effect at the time you build. Those requirements change, so the honest answer always starts with looking at your property.
Work from around the county.
Recent Cordada Construction projects across Vista and North County San Diego.
A local contractor, not a call center.
Licensed
California Contractor License #980108.
Local
Based in Vista, building throughout North County San Diego.
Residential Focus
Residential construction experience across additions, conversions, and remodels.
Direct Communication
You talk to the people building the project, not a rotating account manager.
Free Estimates
We walk the property and give you a written estimate at no cost.
Google Reviews · Client testimonial — send these over and we'll add a reviews block here.
Questions homeowners ask us first.
Straight answers, and an honest note on the things that depend on your property.
What is an ADU?
Can I build an ADU on my property in Vista?
How much does an ADU cost in San Diego County?
How long does it take to build an ADU?
Can I convert my garage into an ADU?
Can an ADU be rented out?
Do I need permits for an ADU?
How do I know what size ADU I can build?
Thinking about building an ADU?
Tell us about your property and what you have in mind. We'll come out, look at the space, and give you a written estimate with no cost and no pressure.
Request your free ADU consultation
Call or email Cordada Construction to tell us about your property and the ADU you have in mind.
No online form is connected on this page. Please contact us directly to request your free consultation.