20 Heene Court Mansions, Heene Terrace, Worthing, BN11 3NW

20 Heene Court Mansions is a mid-terrace house in Worthing (BN11 3NW). It has a recorded floor area of 25 m² (around 269 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (August 2020) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in January 2013 the rating was G, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor and main heating went from Very Poor to Average; while hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity. At 25 m² this is the 5th smallest of 28 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 bottom. On EPC score it ranks last in the building (39 versus a best of 79).

It hasn't traded since October 2005, a hold of 21 years that's notably long for the area. At 25 m² it sits well below the postcode median (65 m² across 27 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £114,000 is 42.5% above the 2005 sale price.