text: where can i find h.m. customs & excise in southend, essex? alexandra house london road southend on sea essex ss1 james h is correct. its a couple of minutes walk from southend victoria train station and it is definitely not london road.  if you are driving there are plenty of parking spaces scattered all over. on the side of the road of the building there are parking metres down a slip road or alternatively on the other side of the dual carriageway there is a small car park next to the library. otherwise park in the town centre (3 minutes walk) and walk back.