21 Hollowhead Avenue, Wilpshire, Blackburn, BB1 9LD

21 Hollowhead Avenue is a six-bedroom detached house in Wilpshire, Blackburn, Blackburn (BB1 9LD). It has a recorded floor area of 307 m² (around 3305 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (May 2015) shows a C (score 73). When first surveyed in October 2008 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good, lighting went from Very Poor to Very Good and main heating went from Average to Good. The latest certificate is from May 2015, so improvements made since then won't be reflected.

Held since February 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. At 307 m² the property is well over the postcode median (153 m² across 13 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 5 is the typical count. Today's modelled estimate of £530,000 sits 51.4% above the 2009 sale of £350,000. On a £-per-square-foot basis, the last sale (£106/sq ft) was about 38.1% below the postcode norm. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.