Chartwell Court, former Post Office Research and Development Establishment (London)

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Site of Post Office Research and Development Establishment. Here the first programmable electronic computer was built, under the direction (and partly at the expense of) engineer Tommy Flowers. The present-day street covering part of the site, Flowers Close, is named for him.

The code-breaking Colossus computer, used at Bletchley Park during the Second World War, was built at the Post Office Research Station in Dollis Hill by a team led by Tommy Flowers. The station was relocated to Martlesham Heath at the end of the 1970s. The Post Office Research Station building has now been converted into 62 flats and is now known as 'Chartwell Court'.

Now a Grade II listed gated conversion of 64 flats.

151 Brook Road
London NW2 7DW