look online for supply only and organise your own fitting. significant savings to be had. (I’m getting our builder to fit)
That is the cost im looking at.
The area in theory, is required to have traditionally built timber sash and case, including some of the absolute poorest household locally.
What has happened more and more, is the planning process gets bypassed and people are fitting the cheapest PVC normal windows they can find (as technically, the last time I checked, they could be ordered to remove them).
I know someone who, going by the official route would have spent £18k+, but by going in without planning and using the cheapest windows they could find, ended up at around £5k, although he was able to fit them himself.
As far as the intentions of the conservation area go, its kind if self defeating, people either put in cheap stuff that looks cheap, or the windows are left in a dire condition. The number of households with well maintained traditional windows is an increasingly small minority. And is exactly the kind of big ticket item the poorest seemingly cant reach losing out on the long term energy savings.