UK National Planning Policy Framework (NPPF) was published in July 2021.
This revised national framework promotes 'beauty at the heart of the planning system’, in an effort to create ‘beautiful, environmentally sustainable, and life-enhancing communities’.
Link below:
https://www.gov.uk/government/news/vision-for-building-beautiful-places-set-out-at-landmark-design-event
This

Historic England’s has recently published 
‘Theres no place like old homes - Re-use and Recycle to Reduce Carbon’, Historic England (2019).
This research investigates the enormous potential benefits of recycling and adaptively reusing our existing building stock, rather than wastefully pulling buildings down and rebuilding them. "The longer a building and its component parts last, the less embodied carbon is expended over the life of the building.”
You can download the PDF at the following link:
https://historicengland.org.uk/content/heritage-counts/pub/2019/hc2019-re-use-recycle-to-reduce-carbon/