11 Whitaker House Apartments, Charlotte Close, Halifax, HX1 2NX

11 Whitaker House Apartments is a mid-terrace house in Halifax (HX1 2NX). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1900-1929 and council tax band B. At 82 m² this is the 14th smallest of 19 units on EPC record in the building, where floor areas span 40–109 m². The building's EPC ratings span D to B, with this unit at the bottom. On EPC score it ranks last in the building (55 versus a best of 84). The latest certificate (November 2020) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (November 2011); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 78).

Across 2006–2016, sale prices on this property compounded at -5.3% per year. Today's modelled estimate of £125,000 sits 66.7% above the 2016 sale of £75,000. On a £-per-square-foot basis, the last sale (£85/sq ft) was about 44.6% below the postcode norm. At 82 m² it's 17.2% larger than the typical home in the postcode (70 m² median across 18 EPCs). Last sold in November 2016, so it's been off the market for around 10 years.