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The Perimeter is open by pre-booked appointments only, from Tuesday - Friday and every other Saturday.


Please note that the 11am slots on Thursdays will be guided tours with full access to the building. 

If you have any special requirements please do email us beforehand on
+44 (0) 207 404 3313

20 Brownlow Mews
London WC1N 2LE

Directions by Tube:

Chancery Lane – 10 minute walk
Russell Square – 10 minute walk
Kings Cross St Pancras – 15 minute walk
Holborn – 15 minute walk

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