12 Sinderhill Court, Northowram, Halifax, HX3 7WB

12 Sinderhill Court is a one-bedroom mid-terrace house in Northowram, Halifax, Halifax (HX3 7WB). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to before 1900 and council tax band A. At 37 m² this is the smallest unit on EPC record across the building (37–128 m²). The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (21 versus a best of 75). The latest certificate (February 2021) shows an F (score 21), near the bottom of the EPC scale. Earlier certificates rated it D (March 2011); the latest reading is 2 bands lower. Between certificates, hot-water efficiency went from Very Poor to Average and lighting went from Good to Very Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to D (score 65), a 2-band jump. Main heating runs on electricity.

At 37 m² it sits well below the postcode median (70 m² across 13 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2011–2021, sale prices on this property compounded at 3.1% per year. Today's modelled estimate of £114,000 is 14% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 27.1% above the typical sold price in the postcode. Most recent transfer: June 2021 at £100,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.