10 De Winter House, Granville Road, Sevenoaks, TN13 1DZ

10 De Winter House is a two-bedroom semi-detached house in Sevenoaks (TN13 1DZ). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1983-1990 and council tax band C. At 50 m² this is the largest unit on EPC record across the building (33–50 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (October 2019) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (June 2009); the latest reading is one band lower. Between certificates, lighting went from Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

Held since October 2002 — that's 24 years off the open market, well above the local norm. At 50 m² the property is well over the postcode median (37 m² across 19 EPCs), placing it in the larger end of the local stock. Across 1997–2002, sale prices on this property compounded at 16% per year. Today's modelled estimate of £271,000 sits 86.6% above the 2002 sale of £145,250. On a £-per-square-foot basis, the last sale (£270/sq ft) was about 21.1% below the postcode norm.