South Bay House / StudioAC

South Bay Residence is situated on a flat, rural site in Ontario, a few hours east of Toronto. Positioned on a north-facing expanse, the site offers a vast open field bordered by a delicate grove of trees and a shoreline with unique, varied trees that became integral to the architectural concept.

From Bologna to Mexico City: 8 Unbuilt Masterplans Reimagining Communities Through Regeneration and Design

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In today's architectural discourse, masterplanning is increasingly recognized as a means to reconcile growth with long-term social, cultural, and environmental priorities. Beyond organizing buildings and infrastructure, these large-scale proposals aim to regenerate urban fabrics, adapt historic or underutilized sites, and establish frameworks for inclusive and resilient communities. Submitted by the ArchDaily community, the projects featured in this edition of Unbuilt Architecture highlight how masterplans can respond to contemporary challenges while preparing cities for an uncertain future.

Promenade Samuel-De Champlain / Daoust Lestage Lizotte Stecker

The recently concluded third phase of the Promenade Samuel-de Champlain, completed fifteen years after the inaugural phase, offers a continuation of the design language while evolving to provide distinct and enhanced visitor amenities. Previously a desolate expanse of highways and rail corridors along the St. Lawrence River, the area was an insurmountable barrier for the inhabitants of the city. The metamorphosis of the highway into an urban boulevard and the relocation of railway tracks unlocked approximately 150,000 square metres of land across 2.5 kilometers, creating an ideal canvas for a significant recreational and cultural project championing active mobility along the riverfront.

Bawley Point 01 House / Watershed Architects

Bawley Point, on the south coast of New South Wales, is familiar terrain for architect Mark Korgul, director of Watershed Architects. A regular visitor while studying architecture at Canberra University, this idyllic township is still a favourite location for surf trips and family holidays. The coastal hamlet is now the site of this holiday home, designed for a family, children, and grandchildren.

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