Not sure I understand?
Edit: Anyway, the poster I was replying to was making the point that these towers are alleviating demand and subsequently pushing prices down, which is not happening.
If I have a market of 10 dumpy old cars, people will pay X for it. If I destroy 1 dumpy old car and add 2 brand new cars, people will pay more for the new cars (like your new building) but the dumpy old ones will be slightly cheaper.
I.e. relative vs absolute.
This research shows that there’s an average of 1.5% price increase per floor. Care to share a counter-claim source?
Also I do hope you know the context of my posts relate to the UK market?