California House, California, Witton Park, Bishop Auckland, DL14 0DR

California House is a detached house in Witton Park, Bishop Auckland, Bishop Auckland (DL14 0DR). It has a recorded floor area of 126 m² (around 1356 sq ft) and construction records dating it to before 1900. The latest certificate (July 2023) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in July 2012 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump.

Held since December 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2001–2009, sale prices on this property compounded at 1.8% per year. Today's modelled estimate of £283,000 sits 185.3% above the 2009 sale of £99,198. On a £-per-square-foot basis, the last sale (£73/sq ft) was about 55.3% above the typical sold price in the postcode. At 126 m² it's 20% larger than the typical home in the postcode (105 m² median across 15 EPCs). 2 planning records sit against the property, 2 approved, 0 refused.