Turtle Hill House: Modern Architecture Rooted in the Landscape of Wellfleet

At 50 Anawan Road, a remarkable piece of Cape Cod Modernist architecture reveals itself among the treetops. Known as Turtle Hill House, the home is at once unmistakably of its Wellfleet setting and entirely unexpected, a composition of cedar-shingled curves, rectilinear forms, glass and steel that has evolved thoughtfully over more than half a century.

Originally designed by New York-based Italian architect Giovanni Pasanella, Turtle Hill House began as an historic Modernist residence perched high above the surrounding landscape. Decades later, architect Joy A. Cuming of Aline Architecture undertook a substantial addition and comprehensive renovation, approaching the project with a clear objective: allow the house to evolve without losing the architectural integrity of Pasanella's original design.

Preserving the Original. Creating Something New.

Perhaps the most compelling aspect of Turtle Hill House is the relationship between its original architecture and the later addition.

Rather than simply extending the existing building, the new and original forms were connected by a second-level bridge. The approach allowed the geometry of the earlier structure to remain legible while creating an entirely new architectural composition around it. Aline describes the transparent stair tower as a pivotal element around which the home's more horizontal forms revolve.

From outside, that relationship is immediately apparent.

Curved walls clad in traditional cedar shingles meet crisp planes of glass and steel. Cubes, cylinders and prisms overlap and separate. Rooflines change direction and elevation. A soaring glass stair tower provides a strong vertical counterpoint to the home's predominantly horizontal composition.

It is modern architecture, but its materials and relationship to the landscape make it feel remarkably at home on Cape Cod.

A Cape Cod Material, Reimagined

Cedar shingles are among the most familiar elements of Cape Cod architecture. At Turtle Hill House, however, they are used in a distinctly contemporary way.

Rather than simply covering traditional pitched forms, shingles sweep around curved walls and envelop geometric volumes. Their texture and natural weathering soften the precision of the architecture while connecting the building visually to the surrounding coastal landscape.

The effect is particularly striking because of the contrast: the warmth and texture of wood against glass, painted steel and sharply articulated architectural forms.

Architecture That Frames the Landscape

The relationship between building and landscape continues throughout Turtle Hill House.

The property occupies 1.37 acres, with the house positioned high in its Wellfleet setting. The current home takes advantage of that elevation through abundant glass, multiple decks and carefully positioned openings that draw the landscape into the experience of moving through the house.

One of the simplest architectural moments may also be one of the most memorable.

A covered passage beneath the house terminates in a large circular opening, turning the surrounding trees into a framed composition. Rather than simply looking at the landscape, the architecture makes the landscape part of the design.

That sensitivity to setting carries through to the home's name itself: Turtle Hill House, a reference to the turtles that return to nest on the property.

The Stair Tower at the Heart of the House

The transparent stair tower is perhaps Turtle Hill House's most recognizable architectural element.

Inside, a dramatic open-tread staircase constructed of steel and maple creates a vertical journey through the home. Aline's renovation paired the crispness of painted steel, concrete and terrazzo with warmer materials, particularly maple paneling used throughout the kitchen, living and dining areas.

That contrast between precision and warmth repeats the same conversation taking place outside between glass, geometry, cedar shingles and the surrounding woods.

The result is a house that doesn't reveal itself all at once.

It unfolds.

Designed for a Different Kind of Cape Cod Living

Today, Turtle Hill House encompasses 2,587 square feet with four bedrooms and four full baths. The interiors include a European kitchen with concrete countertops and high-end stainless-steel appliances, sequentially matched maple paneling, the dramatic steel-and-maple staircase and expansive glass that brings natural light deep into the home.

Multiple decks extend the living spaces outdoors, while the elevated setting offers views across the surrounding treetops and tidal marsh. An association beach and tennis courts are nearby, adding another dimension to life in this distinctive Wellfleet setting.

But reducing Turtle Hill House to a collection of amenities misses what makes it special.

This is a house about architecture, landscape and evolution.

More than fifty years after its original design, it remains an example of how a home can change dramatically while respecting the architectural idea with which it began.

A Modernist Legacy in Wellfleet

Cape Cod has a fascinating architectural history, and the Outer Cape in particular has long attracted architects, artists and designers interested in exploring new ways of living within its extraordinary landscape.

Turtle Hill House belongs naturally within that conversation.

From Giovanni Pasanella's original design to Joy A. Cuming and Aline Architecture's later transformation, the house represents two moments in its architectural life, connected rather than competing.

The result is something rare: a home that feels historically significant without feeling frozen in time.

Turtle Hill House is now offered for sale at 50 Anawan Road in Wellfleet, Massachusetts.

For more information or to experience the architecture in person, contact LuxRECapeCod.