(Re)grounding Pike Hill



Summer 2025 | Student Architecture Residency at Birdseye









This proposal is a space for (re)grounding. Growth and change are embraced as points of departure, and practices of maintenance and care are ingrained in day-to-day living.  New forms of interspecies entanglement are fostered while also facilitating relationships with mindful boundaries and restraints. Life across all species carries equal importance.

Pike Hill Copper Mine is a site where much of its life has been destroyed. This project remediates the land and brings it back through an intentionally entangled approach. Rather than typical passive rehabilitation interventions of capping mine waste and leaving it untouched, tailings are treated and repurposed as building materials. Mines are not only protected as bat habitats, but are supported ecologically through the rehabilitation of their surrounding ecologies.

Plants, animals, and humans are both collaborators and clients as they work together toward a collective regrounding.















   Pike Hill Copper Mine Site

   Remediated Mine Tailings as Construction Material








Waste rock and mine tailings react with water, contaminating the surrounding water network and depleting fish and benthic organisms beyond 1.5 miles around the site. This proposal remediates mine tailings and repurposes them as building material, while simultaneously implementing a rainwater collection and plant filtration system that returns greywater cleanly to the ground.











































While Pike Hill is commonly referred to as an abandoned mine site, that is not necessarily the case. When humans left, bats moved in. This regrounding positions the endangered bats as co-clients and collaborators with the human inhabitants. Each element - HOUSE, CHAIR, TOOL, and GARDEN - responds accordingly.

























marly.mcneal@columbia.edu