Modern kitchen with blue accent wall, island with black base, three pendant lights, open shelving, stainless fridge, and large window; a blurred person walks through an open door on the left.
The living area with built-in shelving is overlooked by a loft.

August 7, 2026

Words: Alex Bozikovic

Photography: Scott Norsworthy

Inside A Sustainable Ontario Home Inspired By 19th-Century Southern Architecture

How can a house be open and sheltered, communal and private? Canadian architecture studio Williamson Williamson explores these tensions with a sustainable house in Ontario’s rural Magnetawan that reinterprets a vernacular form dating to the 19th-century American South.

Located on Lake Magnetawan 3 hours north of Toronto, the nearly 1,700-square-foot cottage repurposes the dogtrot, an architectural style popular in Tennessee, Kentucky, and the Carolinas in which two gabled structures are linked by a covered but open-sided porch that serves as a naturally cooled refuge in hot, humid weather. Husband-and-wife firm cofounders and principals Shane and Betsy Williamson, who met earning their master’s at Harvard University, developed a similar concept for an affordable housing competition more than a decade ago and then adapted it for this project. “The breezeway is the fundamental idea,” explains Betsy Williamson. “It’s a shaded porch, a staging area for water sports, and a wet zone in bad weather.”

  • Modern wooden interior with large window, slatted walls, blue staircase, and a person ascending the stairs. A door leads outside; a stool and shelves are visible in the well-lit room.
    Vertical maple-veneered slats, 4-inch-wide pine floor planks, and a vintage Sauna stool by Antti Nurmesniemi appoint the entry to the larger portion of the two-volume cottage connected by a dogtrot-inspired breezeway. Photography by Scott Norsworthy.
  • A wooden porch with a bench, a kayak, and a paddle faces a deck with a chair. The area overlooks trees and a distant body of water.
    Wood decking, prefinished pine, and cedar wrap the breezeway, which derives from the covered porches in southern U.S. homes and functions as storage for water-sports equipment.
  • Modern kitchen with blue accent wall, island with black base, three pendant lights, open shelving, stainless fridge, and large window; a blurred person walks through an open door on the left.
    The living area with built-in shelving is overlooked by a loft.
  • Modern interior with blue staircase, wooden slat wall, built-in bookshelf, and minimalist decor; natural light enters from side window.
    The arch of painted tongue-and-groove pine in the main bathroom echoes the curves of the house’s roofline corners.
  • A small bathroom with green and white arched walls, a toilet, a white sink cabinet, a vertical light, and a window showing trees outside.
    With wall and roof panels fabricated locally, the cedar-clad, nearly 1,700-square-foot cottage was built to Passive House standards.
  • A modern, rectangular wooden house with large windows sits elevated among trees, surrounded by grass and overlooking a body of water.
    Aluminum-and-leather pendant fixtures suspend from the 17-foot ceiling above the kitchen’s island topped in cherry butcher block.

The triangular volume surrounding it is clad in raw cedar and has rounded roofline corners. Inside, pine siding runs up the walls as they fold inward to form a 17-foot peaked ceiling. The smaller gabled portion houses the main bedroom suite. From there, the homeowner can cross the breezeway into the larger portion, which contains the main entry, the open kitchen, living, and dining area, and a second bedroom suite. Split bedrooms allow guests privacy. This builds on a theme familiar to the firm, which conceived an addition to a Toronto residence that could adapt with that client’s needs during visits from extended family. As Shane Williamson puts it, “How can one dwelling hold autonomy and togetherness at once, and adapt as its household changes?” With this house, the smaller volume can be closed off for the winter, to change with the needs of its occupants and the seasons.

The cottage elevates its simple form with rigorous detailing. Stairs at the entry lead up to a skylit loft that stretches out above the breezeway. In the living area, three south-facing windows mirror the proportions of the porch opening. The palette is almost entirely wood—oiled and white-painted pine, maple-veneered plywood—enlivened by swaths of sky blue and leaf green paint. Furnishings are few and minimalist. In the kitchen, a trio of sleek black-aluminum pendant fixtures drop 11 feet from the ceiling, adding drama.

Additionally captivating is that the project was built to Passive House standards. The wall and roof panels were prefabricated, feature double-stud construction filled with energy-efficient dense-pack cellulose insulation, and assembled on-site, and multiple points of natural ventilation eliminate the need for mechanical cooling in summer—just like the historic dogtrots it’s inspired by.

  • A person walks in a minimalist room with a curved white ceiling, blue accent wall, wooden floor, stool, a white object, and natural light from a skylight.
    A skylight and an Urchin floor lamp by Stephanie Forsythe + Todd MacAllen illuminate the loft.
  • Modern bathroom with blue and white curved walls, a wooden floor, freestanding tub, toilet, framed art, and a window with greenery outside. Sunlight streams in through the window.
    Both the guest and main bathrooms have IKEA vanities and Toto toilets, but the guest also has a vintage clawfoot tub.
  • Minimalist bedroom with white walls and wooden floor, large window overlooking trees, skylight above, wooden chair with fur throw, and framed art on the wall.
    Large windows on two elevations keep the main bedroom naturally light and bright.
  • A modern elevated cabin with a slanted roof stands among tall trees, accessed by a long wooden staircase on a forested hillside.
    Set on 17 acres, the house is supported by piers as it stretches past the edge of a hill, where steps lead down to Lake Magnetawan.

FROM FRONT 
wac lighting: sconces (breezeway, kitchen, bedroom). ikea: vanities (bathrooms). toto: toilets. kuzco lighting: sconce (main bathroom). allmodern: pendant fixtures (kitchen). fireclay tile: backsplash. lg electronics: refrigerator. molo: floor lamp (loft). THROUGHOUT maibec: siding. andersen corporation: windows, doors. velux: skylights. benjamin moore & co.: paint. tacoma engineers: structural engineer. lowry building company: general contractor.

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