9 Barham Avenue, Elstree, Borehamwood, WD6 3PW

9 Barham Avenue is a four-bedroom detached house in Elstree, Borehamwood, Borehamwood (WD6 3PW). It has a recorded floor area of 185 m² (around 1995 sq ft), construction records dating it to 1967-1975 and council tax band H. The latest certificate (November 2009) shows an E (score 47), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since March 2009. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Poor. The recommended improvements would push it to D (score 63). The latest certificate is from November 2009, so improvements made since then won't be reflected.

Untraded for 16 years, with the last transfer in July 2010. At 185 m² it sits well below the postcode median (413 m² across 14 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1999–2010, sale prices on this property compounded at 7.3% per year. Today's modelled estimate of £1,545,000 is 21.2% above the 2010 sale price. On a £-per-square-foot basis, the last sale (£639/sq ft) was about 68.5% above the typical sold price in the postcode.