12 Arrancourt, Gilligan Close, Horsham, RH12 1UA

12 Arrancourt is a one-bedroom mid-terrace house in Horsham (RH12 1UA). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1976-1982 and council tax band B. At 52 m² this is the 21st 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 (December 2024) 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 February 2015. The recommended improvements would push it to C (score 74). Main heating runs on electricity.

Untraded for 28 years, with the last transfer in December 1997. 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 £186,000 sits 287.9% above the 1997 sale of £47,950. On a £-per-square-foot basis, the last sale (£86/sq ft) was about 57.3% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 76% of similar EPCs).