New Construction

Where vision becomes foundation

How do I build a custom home in the Bay Area? More than 35 years ago, Mark De Mattei discovered his talent and passion for putting families in the homes of their dreams. Nearly 2,000 happy clients!

Custom Homes, Built With Purpose

Every home we build is entirely custom—designed to your specifications, suited to your site, and finished with the finest materials. From ground-up estate builds in Los Gatos and Atherton to contemporary hillside retreats in Saratoga or Silicon Valley, we create residences that are as structurally sound as they are architecturally stunning.

The De Mattei Difference

  • Unrivaled Craftsmanship
    Every detail matters. Our team of skilled builders and project managers bring years of experience, a passion for precision, and a relentless commitment to quality.

  • Bay Area Expertise
    With deep local knowledge, we navigate complex terrains, zoning regulations, and design requirements with ease—delivering beautiful homes that meet both vision and code.

  • Total Transparency
    From initial budgets to construction timelines, we prioritize clear communication and accountability. Our clients are always informed and in control.

  • Legacy-Driven Approach
    A De Mattei home is built to last for generations. Our homes don’t just meet expectations—they elevate them.

Custom Homes, Built With Purpose

Every home we build is entirely custom—designed to your specifications, suited to your site, and finished with the finest materials. From ground-up estate builds in Los Gatos and Atherton to contemporary hillside retreats in Saratoga or Silicon Valley, we create residences that are as structurally sound as they are architecturally stunning.

How do I build a custom home in the Bay Area? More than 35 years ago, Mark De Mattei discovered his talent and passion for putting families in the homes of their dreams. Nearly 2,000 happy clients!
How do I build a custom home in the Bay Area? More than 35 years ago, Mark De Mattei discovered his talent and passion for putting families in the homes of their dreams. Nearly 2,000 happy clients!

A Streamlined, High-Touch Process

We know that new construction can feel complex. That’s why we offer a clear, guided approach—from lot evaluation and pre-construction planning to design coordination, permitting, and build execution. Our in-house team and trusted partners work closely with your architect and designers to ensure seamless communication and flawless execution at every phase.