27 Arrancourt, Gilligan Close, Horsham, RH12 1UA

27 Arrancourt is a one-bedroom mid-terrace house in Horsham (RH12 1UA). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1983-1990 and council tax band B. At 51 m² this is the 19th smallest of 39 units on EPC record in the building, where floor areas span 45–65 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (June 2018) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2010. Between certificates, roof efficiency went from Good to Very Good and hot-water efficiency went from Very Poor to Poor; while lighting dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 80). Main heating runs on electricity.

It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs). 14 years since the last transfer (January 2012). Today's modelled estimate of £177,000 is 47.5% above the 2012 sale price.