Featured Houses
Back Bay A-Frame by Peter Braithwaite Studio
Terence Bay, Nova Scotia

Back Bay A-Frame by Peter Braithwaite Studio
Architects & Firms
Location: Terence Bay, Nova Scotia, Canada
Project size: 1,200 square feet
Program: This A-frame cottage, on a jagged peninsula dipping into the Atlantic, is affectionally known as the “B-Frame.” It developed out of a two-week design-build course, taught by principal Peter Braithwaite, at the Dalhousie School of Architecture and Planning in Halifax, Nova Scotia. Initially envisioned as a boat house for the local community, through the design process, the B-Frame developed into a private residence. The 6-acre site and structures built on it, including B-frame, are owned by the architect.
Design Solution: The project didn’t start with a client or program, and it was never hindered by the timelines or constraints of typical residential commissions. Much of the development of B-Frame occurred through the act of the design team physically building on-site. This hands-on approach allowed for material experimentation as well as a structure that is integrated into its landscape. The form naturally rises from an existing crevasse in the bedrock. It bends in plan to orient toward the sun and ocean views. The team explored new methods of building such as prefabricated panelized cladding systems, custom-built aluminum window walls, a concrete bathtub that was poured in place, and an exploratory structural system.
The interior provides a warm and comforting environment with white oak–clad walls and polished concrete floors throughout. The great room is divided into three programmatic sections for gathering, eating, and cooking, with each space designed to connect with specific features in the landscape around the building.
A weathering steel bridge connects the entry of the B-Frame to a large existing bedrock boulder. The idea for this spanning member emerged directly from the geology of the site.

Photo © Ema Peter
Structure and Materials: The structure of B-Frame deviates significantly from a typical A-Frame cabin. The building is anchored by a board-formed concrete core that sits between two existing boulders. On top of this core is the timber A-Frame structure. As this timber structure extends outward, the site’s grade drops off. Rather than supporting the A-Frame structure with a continuous foundation, as is typical for these types of structures, slender steel columns and light cross-bracing allow the structure to hover above the terrain.
Additional Information
Completion date: 2024
Site size: 6 acres
Total construction cost: Withheld
Client/Owner: Peter Braithwaite
Photos © Ema Peter
Drawings courtesy Peter Braithwaite Studio
Credits
Architect
Peter Braithwaite Studio
PH1 - 5510 Falkland Street
(902) 229-4214
www.peterbraithwaitestudio.com
Interior Designer
Peter Braithwaite Studio
Engineers
Structural: Andrea Doncaster Engineering
General Contractor
Peter Braithwaite Studio
Photographer
Ema Peter
Specifications
Structural Systems: RKO Steel
Exterior Cladding
Glass curtain wall: Superior Glazing
Wood: JA Turner & Sons
Glazing
Skylights: Velux Roof Windows
Interior Finishes
Cabinetwork and custom woodwork: White oak interior supplied by Robert Bury
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