Accessory Dwelling Units
Garage conversions, attached and detached ADUs, and room additions, with permitting, coastal overlays, and utility tie-ins handled start to finish.

ADUs, garage conversions, custom homes, kitchen and bath remodels, and room additions across San Diego & Orange County, led on site by the owner, from the first walk-through to final inspection.
Troia is owner-operated. Robert Amarin is on every job. No layers of project managers, no subcontracted oversight, no middleman markup.
From the first site walk to final inspection, you deal directly with the licensed builder responsible for your project. That means faster decisions, tighter cost control, and craftsmanship we put our name behind.
"We don't manage builds from a desk. We frame it, pour it, and stand behind every wall we raise."Talk to the builder
Garage conversions, attached and detached ADUs, and room additions, with permitting, coastal overlays, and utility tie-ins handled start to finish.

Ground-up residences and whole-home renovations, from preconstruction budgeting through final punch lists, with schedules that hold and design intent preserved.

Framing is the one trade we self-perform, and the only standalone scope we take on. As a licensed General B contractor, our own crews raise the structure your entire build depends on, square and plumb to engineered plans.

La Jolla, California
Before a single board is cut, we sit down over the plans, aligning scope, budget, and schedule so the build runs clean from day one. It's how we protect your timeline and your investment.
We review goals, site logistics, and jurisdiction to align scope, budget, and timeline from day one.
We coordinate architects, engineers, and trades into buildable drawings and a real cost model.
We prepare documents and manage reviews across coastal overlays and municipalities.
We self-perform the structure and lead vetted partners, on schedule and on standard.
We commission systems, document quality, and turn over with warranties and guidance.
An owner-operated builder with an in-house team, not layers of management padding your final price.
Hands-on in framing, concrete, and structure. We understand the build because we're the ones building it.
California CSLB #1151054. Every project is backed by a licensed professional who stakes their reputation on it.
From the coast to the canyons, Troia Construction builds ADUs, custom homes, and remodels across the county and into Orange County.
Don't see your neighborhood? We work throughout San Diego and Orange County. Ask about your address
We couldn't be happier with our new kitchen! Troia was professional from start to finish. Robert was thorough and transparent when explaining each step. He’s extremely intelligent and creative, suggesting ways to save money and improve on our ideas at the same time. With his connections we were able to save a ton of money on materials. The crew arrived on time every day. They kept a clean job site and finished exactly on schedule. The craftsmanship is top-notch. Highly recommend! I’ve worked with a lot of construction companies and Troia is second to none!
I reached out to several contractors and construction companies for quotes on renovating my ADU. (Most of which took forever to get back to me) A friend recommended Troia Construction, and the recommendation held up. They stood out as the most efficient by far. clear, detailed quotes. Direct, non vague communication. Timelines were solid and realistic. And the one thing I appreciated the most was how detail oriented these guys were. Their confidence came through in both their process and delivery. Highly recommended!!
As an interior designer I was pleasantly surprised with the quality of work and communication from the Troia team. They were a pleasure to work with regarding my upcoming projects and look forward to a continued collaboration.
I had an excellent experience working with Troia Construction. From start to finish, their team was professional, reliable, and highly skilled. They communicated clearly throughout the entire project, kept everything on schedule, and paid great attention to detail. The quality of their work truly stands out — everything was done with precision and care, and the final result exceeded my expectations. It’s clear they take pride in what they do and value customer satisfaction. I would highly recommend Troia Construction to anyone looking for a trustworthy and top-quality construction company.
Troia Construction was professional, communicative, and easy to work with throughout our backyard project. The quality of their work met expectations, and everything was completed efficiently, I’d recommend them if you’re looking for a reliable contractor.
Rob and Angelos are incredibly professional and knowledgeable builders. Exceptional work quality and met my project budget and delivered on time. Will be working with them again soon.
Get a tailored proposal, transparent budget tracking, and direct communication with the owner from day one.