In message . com,
Conductor in Charge of.......... writes

I have just seen an old documentary that showed that all is not what it
seems in Notting Hill. Apparently some of the houses above the
District&Circle lines are not houses at all but just a facade with
nothing behind them, this apparently was to do with the cut&cover
tunnels, does anyone know more detail about this? It sounds very
interesting!

Leinster Gardens in Bayswater. For photos, see near the bottom of:

http://underground-history.co.uk/cutncover.php
--
Paul Terry