BML2/Crossrail Western Extensions.
 

On May 24, 4:45*pm, Neil Williams
wrote:
Mark Goodge wrote:
As for damaging the airiness of the concourse hall, yes, I think that may
be an issue if not handled carefully. But it's essentially just a big box
with little natural light

Eh? *It's got plenty of windows and natural light.

The new Mezzanine level at Kings Cross is rather good. It is pleasant
to utilize. One can see the departure board, and walk straight to
one's platform.

If the Euston Mezzanine is towards the front (Euston Road) of the
station it may work reasonably well.