Fred Wilson (venture capitalist) and Joanne Wilson (also an investor) have been working on a passive house apartment building in Brooklyn for the last five years. Their development company is called Frame Home. And this past week they received a pretty great Christmas gift in the form of a Temporary Certificate of Occupancy from NYC Buildings.

At 5 storeys and with only 10 two-bedroom units, you could classify this building as the kind "missing middle" housing that gets so much air time here in Toronto. And so not only have they managed to build relatively small, but they've done it using passive house design principles.

Here are some of the apartment building's features:

• Cross-laminated timber (CLT) structure

• Passive house design approach

• Triple-pane windows

• Interior polished and insulated concrete walls (presumably to act as a thermal mass to moderate heating/cooling throughout the year)

Fred Wilson (venture capitalist) and Joanne Wilson (also an investor) have been working on a passive house apartment building in Brooklyn for the last five years. Their development company is called Frame Home. And this past week they received a pretty great Christmas gift in the form of a Temporary Certificate of Occupancy from NYC Buildings.

At 5 storeys and with only 10 two-bedroom units, you could classify this building as the kind "missing middle" housing that gets so much air time here in Toronto. And so not only have they managed to build relatively small, but they've done it using passive house design principles.

Here are some of the apartment building's features:

• Cross-laminated timber (CLT) structure

• Passive house design approach

• Triple-pane windows

• Interior polished and insulated concrete walls (presumably to act as a thermal mass to moderate heating/cooling throughout the year)