Coastal Custom Modular in Nantucket
Modular Home Highlights
- Location: Nantucket
- Square Footage: 3,500+ SQFT
- Bedrooms: 4
- Bathrooms: 4.5
- Construction: 7 prefabricated modules, 9’ ceilings
- Special Features: Vaulted ceilings, oak flooring, wine fridge, built-in speakers
When you imagine a custom modular luxury home, it’s not just about square footage — it’s about the lifestyle it creates. This month, we’re proud to showcase a Signature home that redefines modern coastal living: a 3,500+ square foot residence in Nantucket’s Surfside area, blending timeless design with the efficiency and precision of modular construction.
A Home Designed for Coastal Luxury
With four spacious en-suite bedrooms and four-and-a-half baths, this two-story retreat balances privacy and gathering spaces. The main floor opens with a vaulted-ceiling great room that flows seamlessly into a kitchen and dining area built for entertaining. Custom details (oak flooring to decorative accents, built-in speakers, and a wine fridge) reflect the level of craftsmanship necessary for high-end custom modular construction.
A gas fireplace in the living area anchors the home with warmth and elegance, while the first-floor primary suite offers a private sanctuary with pool views, a walk-in closet, and spa-like bath. Upstairs, three additional en-suite bedrooms and a family entertainment lounge with refreshment bar ensure that every guest feels at home.
Built the Signature Way
Crafted in just seven modules, this home combines the speed and efficiency of modular construction with the highest level of customization. Features like 9-foot first-floor ceilings, Andersen 400 Series windows with Heatlock glass, and vaulted ceilings in both the dining room and master bedroom ensure a home that is as energy-efficient as it is elegant.
Indoor–Outdoor Living at Its Finest
This custom modular was designed for the way families live today, balancing indoor life with outdoor activities. Outdoors, a private pool, spa, and spacious deck with built-in media wiring transform everyday living into a resort experience. The one-car garage doubles as a pool cabana, making entertaining effortless.





Space to Grow
One of the benefits of building with modular is flexibility. This home’s full basement, already insulated and sheet-rocked, offers nearly 2,000 additional square feet of living space. Options include two more en-suite bedrooms, a gym, a second laundry, and a family room with wet bar. Whether for extended family or long-term value, the home is designed to evolve with its owners.
Experience Matters
From coastal modular homes in Massachusetts to luxury residences across the Northeast, Signature Building Systems delivers luxury custom modular homes designed for discerning homeowners. This August Home of the Month is proof that custom modular isn’t about compromise — it’s about building smarter, faster, and better without sacrificing luxury.