We Build Coastal Legacy.

Expert residential building, remodeling, and custom real estate development
serving San Diego's most prestigious coastal communities.

5.0 Google Rating
CSLB Licensed & Fully Insured
San Diego & Southern California
Precision · Craft · Legacy
Est. 2019
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Projects Delivered
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Client Satisfaction

What We Do

Built From Vision
to Reality

Modern coastal interior design with premium finishes
01

Design

Architecture
& Interior Vision

Every project begins with a clear vision. We transform spaces into modern coastal homes with refined materials, curated palettes, and premium finishes — designed to endure and impress for generations.

  • Custom architectural planning
  • Interior design & material curation
  • 3D renders & concept visualization
  • Permit-ready design documentation
Start Your Design
Professional construction team working on luxury coastal home
02

Construction

Precision Built.
On Time. On Budget.

From expansions and room additions to full ADU builds, our team executes with military precision. No surprises — just exceptional craftsmanship delivered on schedule.

  • Home additions & expansions
  • ADU & accessory dwelling units
  • Full-home renovations
  • Structural remodeling
Build With Us
Luxury custom home development in coastal San Diego

Development

Ground-Up Luxury.
Custom & Multi-Unit.

For investors and owners looking to build from the ground up, we manage the full development lifecycle — from site acquisition strategy to certificate of occupancy and beyond.

  • Custom single-family homes
  • Multi-unit coastal developments
  • Land & site development
  • End-to-end project management
Develop With Us

Portfolio

Recent Work

A selection of our most celebrated coastal transformations — each one a story of precision, vision, and exceptional craft.

Coastal modern remodel at 58 Spinnaker Way, Coronado CA

Coronado, CA

58 Spinnaker Way

Full-scale coastal renovation elevating indoor-outdoor living with modern finishes, open layout optimization, and premium material integration.

Completed May 2024 · Coastal Modern Remodel

Full interior transformation at 6568 San Miguel Rd, Bonita CA

Bonita, CA

6568 San Miguel Rd

Complete renovation and reconfiguration into a functional 3-bed, 2-bath residence — designed for efficiency, comfort, and long-term livability.

Completed July 2024 · Full Interior Transformation

Modern luxury renovation at 5826 Mt Soledad Blvd, La Jolla CA

La Jolla, CA

5826 Mt Soledad Blvd

High-end residential upgrade blending modern architecture with elevated materials — maximizing views, natural light, and refined interior detailing.

Completed April 2025 · Luxury Renovation

Oceanfront interior remodel at 939 Coast Blvd, La Jolla CA

La Jolla, CA

939 Coast Blvd, Apt 14C

Luxury interior renovation in a prime oceanfront location — clean, modern finishes designed to complement panoramic Pacific views.

Completed 2024 · Oceanfront Interior Remodel

Multi-unit development at 1134 Atwater Rd, Imperial Beach CA

Imperial Beach, CA

1134 Atwater Rd

Ground-up multi-unit development designed to maximize property value — delivered on time with exceptional craftsmanship throughout.

Completed · Multi-Unit Development

Coming Soon

59 Spinnaker Way

Coronado, CA

How We Work

The Sigma Process

No guesswork. No surprises. Every project follows a proven framework that keeps you in control from day one to move-in day.

01

Initial Consultation

We sit down with you — on-site or virtually — to understand your vision, goals, and timeline. No pressure, no pitch decks. Just an honest conversation.

02

Design & Budget Alignment

Our team develops detailed design plans and a transparent cost breakdown. You know exactly what you're getting and exactly what it costs before we break ground.

03

Construction & Project Management

Our licensed team executes with precision. Weekly updates, real-time communication, and a dedicated project manager keep your build on track — no exceptions.

04

Final Walkthrough & Ongoing Support

We walk every inch of your completed project together. Our relationship doesn't end at handover — we're here for any questions long after you move in.

Client Stories

What Our Clients Say

Who We Are

Built on Precision.
Driven by Legacy.

The Sigma was founded with a single conviction: that California's coastal communities deserve construction that matches the caliber of the landscapes they call home. We are not a volume builder. We are artisans.

Every project we take on is a personal commitment. From the first consultation to the final walkthrough, our team brings the same level of dedication — whether it's a kitchen remodel in Coronado or a ground-up development in La Jolla.

CSLB Licensed & Fully Insured
Transparent Pricing. Always.
Locally Owned & Operated
San Diego Rooted
Work With Us

Where We Build

Serving California's
Finest Communities

San Diego
La Jolla
Coronado
Irvine
Newport Beach
Long Beach
Los Angeles

Let's Build Something Great

Ready to Build
Your Vision?

Schedule your free consultation today. No pressure, no obligation — just a conversation about what's possible.

Get In Touch

Start Your
Project Today

Tell us about your project and we'll be in touch within 24 hours to schedule your free on-site consultation.

CSLB #0000000 — Licensed & Fully Insured