Long Island, from the North Shore to the East End
Private builders of fine homes.
We build a few homes at a time, and each one has our full attention from the first meeting to the final walkthrough.
Our work
Why Cornerstone
The right team, assembled.
We are glad to join a design team already in place. Where there is none, we make introductions to architects, engineers and designers suited to the property and the village, and help you assemble the right team.
Resolved before it is built.
We review the drawings with the architect and engineers before construction, so that every detail is resolved on paper and built as drawn. Our principal brings experience with hundreds of millions of dollars of development, delivered to exacting standards.
Your investment, accounted for.
Every trade is bid against the same scope, and the bids are shared with you. Trade and material charges pass through without markup. Our fee is set at the outset and does not change with your selections.
How we build
The Cornerstone standards
Built for generations
A sealed, efficient home
A continuous air barrier and systems designed for clean, healthy air.
Lower levels that live like the floors above
Drainage and waterproofing planned so finished lower levels stay dry and are used.
Every trade bid and leveled
Several qualified bids for each trade, compared line by line and shared with you.
Documented inside the walls
Every wall is photographed before it is closed, and the record is yours at completion.
Inquiries
We welcome inquiries about new homes and whole-home renovations throughout Nassau County, and new homes in the villages of the East End.
Request a private consultation