Our SERVICES

At Green Barn Properties, we specialize in high-quality residential construction in Sag Harbor and the surrounding Hamptons area. From ground-up custom homes to thoughtful renovations, we bring craftsmanship, transparency, and deep local knowledge to every project.

Modern two-story house with large windows, a gray exterior, and a well-maintained lawn.

Custom Home Building

We design and build bespoke homes that reflect your lifestyle, vision, and the unique character of the East End. From initial planning to final walkthrough, our team manages every phase with precision and care.

Interior view of a modern house entrance hallway with wooden stairs, white walls, and multiple windows providing natural light.

Renovations & Additions

Whether you're restoring a historic property or expanding your home for modern living, we deliver seamless renovations and tasteful additions that blend with Sag Harbor’s charm.

A backyard with a swimming pool, green grass, bushes, and trees surrounding a house with large windows, a chimney, and a deck under a blue sky.

Site Planning & Permitting

We navigate local zoning laws, permitting, and environmental considerations to ensure your project starts smoothly and stays compliant with Sag Harbor’s unique building codes.

Modern interior with wooden wall paneling, hardwood flooring, large mirror, and view into bright kitchen and living area with windows and outdoor scenery.

Interior & Exterior Finishes

From high-end kitchens to custom millwork and energy-efficient exteriors, we offer curated finishes that elevate your home’s design and functionality.

A modern backyard with a stone pathway, green trees, and bushes next to a white house with black-framed windows and a door, under a clear blue sky.

Project Management

Our experienced team coordinates every detail—scheduling, budgeting, and on-site supervision—to keep your build on track and stress-free.