My office is room 2.14 in the Herschel Annex. This is not the same thing as room 2.14 in the main Herschel building.

To find me, first find the Herschel building

https://goo.gl/maps/Fg2U4m2G9d3pPkkW9

Then, go through the entrance you can see in this pic and climb the stairs.

When you see the faded picture of the mighty Alan Turing:

you are on the correct floor. Go through the door you can see in the picture above, turn right and lo! you will soon see room 2.14 Herschel Annex.