On Oct 26, 9:29*am, "Peter Masson"
wrote:
"Bruce" *wrote



The cut and cover tunnels were constructed on an ad hoc basis to allow
buildings to be constructed above, in a way comparable to the Gerrards
Cross Tesco project.

Most of the original Met (Paddington to Farringdon) was built under streets,
which were reinstated after construction of the railway. The District,
between Westminster and Blackfriars, was built as part of the Victoria
Embankment project which also incorporated the river wall, the road, and
Bazalgette's sewer.http://www.historytoday.com/roger-hudson/taming-thames

They were very few buildings over Met. Ry tracks. In some instances
their own station buildings spanned the tracks.

Indeed, rather than building over the tracks, their is the instance of
a dummy facades in the Paddington area, i.e. 23 and 24 Leinster
Gardens.

Great Portland Street Station presents an interesting case. I think
the line must slice the corner as Marylebone Road becomes Euston
Road. The station entrance is at the top of Great Portland Street on
an island to the side of Euston Road. At the Western End of the
platforms there is an opening for locomotive exhaust to escape. The
protective walls around the gap are at the side of the ISH parking
lot.