355a, Westborough Road, Westcliff On Sea, SS0 9PX

355a is an end-of-terrace house in Westcliff On Sea (SS0 9PX). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2016) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2008. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good. The latest certificate is from March 2016, so improvements made since then won't be reflected. At 35 m² this is the 6th smallest of 27 units on EPC record in the building, where floor areas span 23–141 m². The building's EPC ratings span F to C across 27 units on file.

It hasn't traded since July 2010, a hold of 16 years that's notably long for the area. Today's modelled estimate of £144,000 sits 69.4% above the 2010 sale of £85,000. On a £-per-square-foot basis, the last sale (£226/sq ft) was about 73.9% above the typical sold price in the postcode. At 35 m² it sits well below the postcode median (63 m² across 26 EPCs), making it one of the more compact homes locally.