The main pumping station building that we see today was designed by the famous public waterworks architect Thomas Hawksley and built in 1893. It is an almost identical copy of the Dalton Pumping Station in Sunderland 1873-79. The building is characteristic of the gothic revival design, Hawksley being a big fan of John Ruskin.
The main pumping station are Grade II listed.
There are plans to redevelop the main pumping station into the centrepiece of an apartment complex. The plans were submitted in 2007, however little progress has been made.
Not much else to say really the building is empty but still has some magnificent architectural features.
Oh & the pics are a bit old & crap, sorry about that.
Thanks for looking