We're living in an airtight, concrete, triple glazed house in europe with mechanical ventilation with heat exchange, plus heat pump on a ground source for heati

We're living in an airtight, concrete, triple glazed house in europe with mechanical ventilation with heat exchange, plus heat pump on a ground source for heating amd (moderate) cooling. It's amazing, temperature is great 24/7 year round. Having said that, your point about footprint holds and building with wood is coming 'back' here especially because of that, using cross laminated timber from sustainable forests.