It was always something that bugged me as a Brit to some degree, but, of course, as soon as I read that, I noticed just how much of it there was. It's ever where, on almost every high street. A bizarre mishmash of character and "meh".
> The building, recently sold on to the New River Company, is repaired and refitted for use as offices and a bank. The building looks rather less dazzling at ground floor level as a result.
The Angel, Islington is a supreme example. The same goes for the buildings along the road from it. The building above the ground floor has character. The ground floor looks exactly like what you'd see in almost any high street in the country.
Near where I worked in London, plans went up for renovation that I think ended up working out reasonably well, https://maps.app.goo.gl/XSpdfzdyQE4DpTXr8. Where that Metro Bank is, they ripped out everything behind that brick facade, and rebuilt (it badly needed it), then worked to do up the brick, maintaining the original style.
This kept the building in the characteristic style of the neighbourhood, (see https://maps.app.goo.gl/US1GvYA1fCQ9VCZi6 for examples of other buildings in the area that are of similar age), but didn't leave it stuck with the maintenance issues. Of course you can see just beside it where they didn't do that, and shoved something decidedly more modern in place, and completely at odds with the styles of the buildings on either side of it, or across the street from it.