When heritage experts said "impossible," we turned a crumbling 1840s schoolhouse into Ontario's most energy-efficient home. See how we did it.

1 storey · 3 bedrooms · 2,291 sq. ft. · 2 bathrooms

2 storeys · 3 bedrooms · 2,153 sq. ft. · 2.5 bathrooms

Quantum Passivhaus supplied Passive House–certified prefab panels to help Caldwell First Nation build fast, energy-efficient, and sustainable homes.