90a, South Street, Tarring, Worthing, BN14 7NB

90a is a mid-terrace house in Tarring, Worthing, Worthing (BN14 7NB). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band B. At 37 m² this is the 5th smallest of 20 units on EPC record in the building, where floor areas span 22–166 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (May 2022) shows a C (score 72). The rating has held steady at C across 2 certificates since June 2010. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

Untraded for 28 years, with the last transfer in April 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 £166,000 sits 260.9% above the 1998 sale of £46,000. On a £-per-square-foot basis, the last sale (£116/sq ft) was about 44.5% below the postcode norm. At 37 m² it sits well below the postcode median (59 m² across 19 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs).