6 St Marks Court, Coundon Grange, Bishop Auckland, DL14 8XQ

6 St Marks Court is a semi-detached house in Coundon Grange, Bishop Auckland, Bishop Auckland (DL14 8XQ). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1976-1982 and council tax band A. The latest certificate (May 2022) shows a D (score 55), a step below the typical UK home. The rating has held steady at D across 2 certificates since January 2012. Between certificates, hot-water efficiency went from Poor to Average and lighting went from Good to Very Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 91), a 2-band jump. Main heating runs on electricity.

Today's modelled estimate of £116,000 sits 562.9% above the 2022 sale of £17,500. On a £-per-square-foot basis, the last sale (£35/sq ft) was about 19.9% below the postcode norm. At 46 m² it's 23.3% smaller than the typical home in the postcode (60 m² median across 26 EPCs). Most recent transfer: February 2022 at £17,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.