Crafting Custom Homes
Across San Diego's Coast
La Jolla • Del Mar • Carlsbad • Encinitas
La Jolla • Del Mar • Carlsbad • Encinitas
Est. 1998
We're a family-owned builder specializing in custom homes and architectural remodels along San Diego's coastline, maintaining the same commitment to quality craftsmanship for over 27 years.
We believe in quiet craftsmanship over loud marketing. Every project reflects our commitment to timeless design, seismic-resistant construction, and California's unique coastal environment.
What We Build
Ground-up construction specializing in 2,800-5,200 sq ft coastal homes. Every detail tailored to your lifestyle.
From $520/sq ft
Transforming the heart of your home with custom cabinetry and designer fixtures for beachfront properties.
From $65,000
Year-round outdoor spaces designed for San Diego's climate. Custom decks to full outdoor kitchens.
From $48,000
Our Work
4,200 sq ft • Completed 2024
Complete kitchen redesign featuring Cambria quartz, custom cabinetry, and marine-grade finishes for coastal durability.
"After interviewing seven builders, we chose Keystone. The owner personally walked our steep lot and explained the engineering required. 12 months later, our dream home was complete."
Schedule a complimentary consultation to discuss your vision. We serve La Jolla, Del Mar, Carlsbad, Encinitas, and surrounding coastal communities.
Schedule Consultation