23a, Church Street, Ferryhill, DL17 0DU

23a is a mid-terrace house in Ferryhill (DL17 0DU). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1900-1929 and council tax band A. At 42 m² this is the smallest unit on EPC record across the building (42–122 m²). The building's EPC ratings span F to C across 28 units on file. The latest certificate (January 2019) 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 March 2009. Between certificates, lighting went from Average to Good. The recommended improvements would push it to C (score 76).

Today's modelled estimate of £100,000 sits 85.2% above the 2022 sale of £54,000. On a £-per-square-foot basis, the last sale (£119/sq ft) was about 213.4% above the typical sold price in the postcode. At 42 m² it sits well below the postcode median (78 m² across 27 EPCs), making it one of the more compact homes locally. Most recent transfer: February 2022 at £54,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.