Licensed general contractor · CSLB #1014696. New construction, ADUs, remodels and additions across LA, Orange, Riverside and San Bernardino Counties. 20 years of building.
Built right. Built to last.
One crew, one point of contact, start to finish. From ADUs and garage conversions to full rebuilds and new construction, Oscar and the LEO team handle the plans, permits and build.
What we build
New Construction & ADUs
Ground-up homes, detached and attached ADUs, and garage conversion ADUs, including plans, permits, new utilities and separate meters.
Remodels & Additions
Full interior remodels taken down to the studs: new kitchens and bathrooms, rewiring, replumbing, roofing and insulation, plus room additions that match the rest of the home.
Hardscape, Stucco & Site Work
New stucco and re-stucco, concrete driveways, patios and walkways, new water, sewer and gas lines, sewer tie-ins with Public Works, soft story retrofits and meter upgrades.
Recent projects
Harvard St · Bellflower
Short St · Whittier
Bradwell Ave · Whittier
7th St · Los Angeles
Kornblum Ave · Hawthorne
South St · Rialto
Joshua Ln · Norwalk
Greycliff Ave · La Puente
Pounds Ave · Whittier
Your builder, start to finish
LEO Building & Construction is run by Oscar, a builder with 20 years of experience in new construction, ADUs, remodels and additions. You deal with Oscar directly, from the first walkthrough to the final inspection.
Licensed & insured · CSLB #1014696 · Permits and city approvals handled · Free on-site estimates
How it works
01 · Free estimate — We walk the site and talk through your goals and budget.
02 · Plans & permits — Drawings, engineering and city approvals.
03 · Build — Our crew on site with regular updates.
04 · Final walkthrough — Inspection sign-off and hand-off.
Where we build
Counties — Los Angeles · Orange · Riverside · San Bernardino
Cities we work in often — Whittier · La Puente · Bellflower · Brea · Placentia · Menifee · La Habra · La Mirada · Compton · Santa Fe Springs · Downey
Don’t see your city? If it’s in one of these four counties, we likely cover it. Just ask.
Get a free estimate
Tell us about your project and Oscar will get back to you within one business day. Call or text (951) 332-1845, or email LEOBuildingTeam@Gmail.com.