No.10 Downing Street is both home and office to the Prime Minister. The first
floor (1) is used as the living area and it extends next door (2) over Numbers
11 and 12.
The famous black door of No.10 that appears in all the news reports is said to
only open from the inside. The brass letterbox (3) is engraved with 'First Lord
of the Treasury'. The second Lord of the Treasury is the Chancellor next door
The black exterior (4) was once the result of years of London pollution. The
brickwork is in fact a yellow colour and is now painted black to keep the
Downing Street has been gated since 1989 when Margaret Thatcher was in office,
preventing public access. There was a similar barricade in 1918 when violent
protest by supporters of Irish Independence was anticipated.|
To the right (5) is an extension to the original terrace. No.10 is also
connected to larger buildings at the back, overlooking Horseguards Parade
The website for 10 Downing Street
can be seen here.