David Soria
Stronghold Realty
Building Investment Group
Real estate agent. Licensed contractor. One call.
I price the construction while you're still at the showing.
Real estate · Construction · Electric & Solar · Sand & Gravel — one relationship, one negotiation, better pricing on every scope.
Stronghold Realty
About David
David Soria
Licensed Agent · Licensed Contractor
Two licenses. One person. Zero guesswork.
Most buyers find out what a renovation costs after they've already made an offer. I give you real numbers at the showing — because I'm not just your agent, I'm also a licensed contractor who's priced and built everything from bathroom remodels to ground-up construction.
I grew up around construction. My family built things — I learned to read a job site before I ever read a contract. When I got my real estate license, I realized buyers were flying blind on renovation costs, making offers on homes they couldn't afford to fix. So I got my contractor's license too. Now I walk into every showing with both hats on. I know what the demo costs, what the permits cost, what the labor costs — and I tell you before you fall in love with a house you can't afford to finish.
— David Soria
Licensed Real Estate Agent
Representing buyers and sellers across San Diego with Stronghold Realty.
Licensed General Contractor
Full scope pricing on any project — small remodels, ADUs, major renovations, new builds.
One Point of Contact
No referrals, no middlemen. From offer to build, you work with one person.
The BIG Family of Companies
Division 01
BIG Sand & Gravel
Aggregate supply for contractors, developers, and builders across the Southwest.
Serving San Diego, Imperial Valley, and the Coachella Valley. Bulk orders, competitive pricing, and reliable delivery for any project size.
Request a Quote
Division 02
BIG Plans
Investment & Development
Strategic real estate investment — from acquisition to exit.
BIG Plans is the investment and development arm of Building Investment Group. We identify undervalued properties, underwrite the construction costs in-house, and execute value-add strategies across residential and commercial assets.
Investment opportunities are subject to availability and qualification. Past performance does not guarantee future results.
Division 03
BIG Construction
General contracting across San Diego, Imperial Valley, and the Coachella Valley.
From ground-up builds to full renovations — BIG Construction brings licensed contractor expertise to every project. Small remodels, ADUs, commercial tenant improvements, and new construction.
Licensed General Contractor. License details available upon request.
Division 04
BIG Electric & Solar
C-10 licensed electrical and solar installation.
Residential and commercial electrical, panel upgrades, EV charging, and solar installation. BIG Electric & Solar brings licensed C-10 expertise to every project.
C-10 Electrical Contractor license pending. Service availability subject to licensing completion.
Division 05
Real Estate & Brokerage
Buy. Build. Sell. Connected through BIG.
David Soria
Licensed Agent · Licensed Contractor
David Soria brings a rare combination to every transaction — a licensed real estate agent who is also a licensed contractor. That means you get accurate renovation pricing at the showing, not after the offer.
Small Remodels
Bathroom refresh, flooring, paint, fixtures — priced accurately on the spot during your showing.
Major Renovations
Kitchen gut, additions, ADUs, structural work — full scope pricing before you make an offer.
Ground-Up Construction
New builds from foundation to finish. I know what it costs because I've built it.
David Soria is a licensed real estate agent with Stronghold Realty. DRE license details available upon request.
Get in Touch
Connect With BIG
Whether you're buying, building, or need aggregate supply — reach out and David will get back to you within one business day.