it all depends who you are. If you own property its "value" increases without your having to do anything about it. If you don't and would like to, it's a nightmare.
It dates back, as you suggest, to Thatcher forcing councils to sell homes cheap to tenants, without making any provision for replacing them, disrupting what had been a comparatively stable housing market - it's never recovered.
Her "big bang" to ease City regulations and allow banks and building societies more freedom also didn't help: it led to the property crash of 2008 as mortgagors were selling financial instruments so complex that even their bosses had no idea of their implications.