I agree with the thought that little significant needs to be done to facilitate the transition from fossil fuels to green sources.
It may need a small push occassionally through (for instance) tax breaks (eg: zero VAT on heat pumps), subsidies for a period (feed in tariffs?), limited legislation (eg new building regulations)
But most will vote with their financial feet. Not all properties will need upgrade or refurbishment in the next 30 years, but at a guess 80%+ will need new heating systems, 70%+ will have new kitchens, windows, bathrooms etc, 30%+ will have major building work (extensions etc).
Today there are properties which have not been updated or upgraded since 1990, 30 years ago.
There will be those in 2050 still indistinguishable from homes today. Owners, like today, will only sell unimproved property at a discounted price to allow for the costs of refurbishment.
The only question is the speed of change - not whether it will actually happen.
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