9a Heene Court Mansions, Heene Terrace, Worthing, BN11 3NW

9a Heene Court Mansions is a mid-terrace house in Worthing (BN11 3NW). It has a recorded floor area of 18 m² (around 194 sq ft), construction records dating it to before 1900 and council tax band A. At 18 m² this is the 4th smallest of 27 units on EPC record in the building, where floor areas span 17–161 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2020) shows a C (score 69), just inside the C band. When first surveyed in May 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good. Main heating runs on electricity.

4 planning records sit against the property, 2 approved, 0 refused. The record references listed-building consent, which constrain future alterations. At 18 m² it sits well below the postcode median (60 m² across 26 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 77% of similar EPCs). Across 2006–2020, sale prices on this property compounded at 1.4% per year. Today's modelled estimate of £106,000 is 24.7% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£439/sq ft) was about 82.9% above the typical sold price in the postcode. Most recent transfer: November 2020 at £85,000.