Isn’t it that we have to combine designing for circularity with designing for low embodied carbon? The first values building as little as possible and using as few materials as possible. I’m hoping Arup’s Circular Design Toolkit could be helpful here - being released for free use early 2022. First principle is “Refuse New Construction”. Also don’t we need to change LCAs to measure functional units by program/ occupancy rather than area so building a smaller house is rewarded? I wrote a blog post on this for AIA COTE a while back about how EUI metrics don’t reward building less, and LCAs are the same. We also need to pay architects differently - not based on % cost / area built but on value added for the client.
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