Design-Build · San Diego, California
Tri Builders crafts ADUs, additions, and full home transformations for San Diego homeowners who expect the finished result to feel inevitable.
Our Philosophy
Tri Builders takes its name from a simple idea: a home, like a tree, is strongest when it grows from a well-set foundation — deliberate, rooted, and built to last through every season.
“We don't just build additions and remodels. We extend the character a home already has, so the new work never feels bolted on.”
What We Build
Fully permitted accessory dwelling units designed as a genuine extension of your property's value — for guests, family, or income.
Explore ADUs
Second stories, primary suites, and expanded living space built to match your home's existing architecture.
Explore Additions
Whole-property transformations, coordinated from structure to final finish under a single design-build team.
Explore Remodeling
Custom cabinetry, waterfall islands, and layouts designed around how your household actually lives.
Explore Kitchens
Spa-caliber primary baths and guest baths, finished with the same care as the rest of the home.
Explore BathroomsHow It Works
We walk the property, listen to your goals, and scope a direction and rough investment range.
Detailed plans, material selections, and a locked timeline — refined until it's exactly right.
We manage the City and County approval process so nothing stalls your project unexpectedly.
Construction with regular updates from one accountable team, ending in a final walkthrough you're proud of.
Portfolio
Representative design direction — our own project gallery is being finalized and will be added here soon.
Where We Build
Tri Builders takes on a limited number of projects each season across San Diego, with particular focus in the following communities:
Begin the Conversation
Share a few details about your project and we'll reach out to schedule a private, no-pressure consultation.
