17a, Elderton Road, Westcliff On Sea, SS0 8AG

17a is a three-bedroom semi-detached house in Westcliff On Sea (SS0 8AG). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band B. At 82 m² this is the 36th smallest of 52 units on EPC record in the building, where floor areas span 36–164 m². The building's EPC ratings span G to C, with this unit at the top. Other recorded features include a balcony. The latest certificate (October 2022) shows a C (score 69), just inside the C band. When first surveyed in April 2014 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average.

Untraded for 28 years, with the last transfer in March 1998. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £271,000 sits 984% above the 1998 sale of £25,000. On a £-per-square-foot basis, the last sale (£28/sq ft) was about 81.3% below the postcode norm. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs).