On a narrow peninsula outside Québec City, L’Échouage Residence reorganizes an inherited cottage and a series of new pavilions into a coastal compound calibrated to rising water and strict shoreline setbacks. The project preserves the cottage’s nonconforming proximity to the St. Lawrence River, lifting it onto new piles and linking it to two landward volumes via a raised bridge spanning the protected zone. Fragmented massing, a dual-tone cedar palette, and choreographed outdoor rooms translate tidal rhythms into spatial sequence and microclimate.
L’Échouage Residence Technical Information
- Architects: Bourgeois / Lechasseur architectes
- Location: Saint-Augustin-de-Desmaures, Canada
- Completion Year: 2025
- Photographs: © Adrien Williams
Grounding is a deliberate nautical maneuver that consists in allowing a vessel to rest on the seabed or along the shoreline. Dependent on the tides, it requires a precise understanding of their rhythms before guiding the bow toward land. Anchoring ensures the boat’s stability, while hauling allows it to be steered back on course as the tide returns.
– Bourgeois / Lechasseur architectes
Tidal Site and Preservation Strategy
The residence occupies a tapering point of land bracketed by two sandy bays. Environmental regulations line irregular arcs across the site, leaving a compressed buildable footprint inland, while the preexisting cottage projects over the river on a cantilever. Rather than remove the structure and lose its grandfathered siting, the architects preserved it as a calibrated outlier that maintains the immediacy of the water and the sensory memory of the place.
Preservation demanded technical recalibration. The cottage was lifted onto new piles, the floors and roof were reinforced, and the envelope was fully insulated to address contemporary performance and fluctuating water levels. With the cottage retained in its nonconforming position, new pavilions were placed within the permitted zone and connected by a raised bridge that passes across the setback. The bridge serves as a precise datum between the protected shoreline and the inland terrain, allowing for continuous movement without expanding the footprint in sensitive areas.
Programmatic Sequence and Orientation
A clear sequence structures the ensemble. The original cottage holds the shared living spaces, oriented to uninterrupted river vistas and daylight. To the east, a rotated pavilion houses the primary suite, angled to capture morning sun and to step away from the social core. A third volume accommodates an accessory dwelling oriented toward the western bay. The walkway links these pieces as a legible route that moves from communal to private, reinforcing autonomy for each program while maintaining proximity.
Entries for both dwellings converge at a compact forecourt that clarifies arrival and separates circulation from river-facing rooms. Subtle offsets between volumes manage sightlines and sound, enabling parallel daily rhythms without overlap. Each pavilion’s orientation responds to a specific environmental cue: solar gain for the bedroom, cross-views to the bays for the accessory unit, and a continuous horizon line for the living spaces. The plan reads as a choreographed drift along the coastline, with pauses set by views, light, and thresholds.
Fragmented Massing and Outdoor Choreography
The rooflines of the new pavilions echo the cottage while abstracting maritime and geological references from the site. Forms suggest beached hulls and scattered boulders, creating a broken silhouette that reduces apparent scale at grade. From the approach, the project reads as a modest grouping; only from above does the full extent of the intervention become legible, an effect that aligns with the aim to minimize visual impact along the shoreline.
Between the volumes, the plan edits wind, sun, and exposure into distinct outdoor rooms. A first court consolidates entrances and buffers the interior from the approach. To the west, the angled pavilions create a sheltered inner courtyard that opens to the river yet protects a pool from prevailing winds, all within the regulatory geometry. Glazing and framed apertures weave cross-perspectives between the courts and the landscape, while the bridge introduces a compressive interlude that releases into the living space of the original cottage, heightening the experience of arrival at the water’s edge.
Structure, Envelope, and Material Continuity
Material articulation clarifies the massing. All volumes are clad in cedar in two tonal registers. Darker boards line the primary exterior planes, recalling patinated timber from coastal weathering and matching the chromatic depth of the surrounding rocks and driftwood. Lighter cedar appears in recesses, cutouts, and sheltered faces, emphasizing relief and the segmentation of the volumes. This chromatic pairing reads the facades as layered sections rather than flat skins.
The pale cedar continues into soffits, porch interiors, and selected interior surfaces to soften transitions and draw exterior materiality into the rooms. Inside the cottage, the existing wood structure is revealed and edited rather than concealed, preserving material memory while new reinforcement and comprehensive insulation calibrate performance. The result is a legible construction narrative: original fabric set on new piles, a tightened envelope, and a consistent cladding language that links old and new as one coastal assembly oriented to light, view, and tide.
About Bourgeois / Lechasseur architectes
Founded in 2011, Bourgeois / Lechasseur architectes is based in Quebec, Canada. The studio is known for its sensitive responses to the dramatic sites of Quebec and the Magdalen Islands, blending architectural innovation with a deep respect for context and memory. Their approach reflects a restrained yet expressive material palette and thoughtfully articulated forms that engage directly with the natural landscape.
Credits and Additional Notes
- Architects: Bourgeois / Lechasseur architectes – Olivier Bourgeois, Régis Lechasseur, Emmanuelle Champagne, Isabelle Auclair, Maxime Turbide, Lisa Hallé
- Client: Private
- Construction company: Cas par Cas
- Photographs: Adrien Williams
