26 Arrancourt, Gilligan Close, Horsham, RH12 1UA

26 Arrancourt is a one-bedroom end-of-terrace house in Horsham (RH12 1UA). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1976-1982 and council tax band B. Tenure is freehold. At 45 m² this is the smallest unit on EPC record across the building (45–65 m²). The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (December 2019) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2009. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Average to Good and main heating went from Poor to Average; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 78). Main heating runs on electricity.

It hasn't traded since June 2001, a hold of 25 years that's notably long for the area. Today's modelled estimate of £177,000 sits 147.6% above the 2001 sale of £71,500. On a £-per-square-foot basis, the last sale (£148/sq ft) was about 26.4% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs).