30 Harpenden Lane, Redbourn, St Albans, AL3 7PB

30 Harpenden Lane is a detached house in Redbourn, St. Albans, St Albans (AL3 7PB). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (June 2015) shows an F (score 31), near the bottom of the EPC scale. Earlier certificates rated it E (February 2010); the latest reading is one band lower. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Very Poor to Average; while wall efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to A (score 97), a 5-band jump. The latest certificate is from June 2015, so improvements made since then won't be reflected.

Across 1997–2014, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £548,000 sits 69.7% above the 2014 sale of £323,000. On a £-per-square-foot basis, the last sale (£448/sq ft) was about 43.3% above the typical sold price in the postcode. At 67 m² it's 20.2% smaller than the typical home in the postcode (84 m² median across 21 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). 12 years since the last transfer (December 2014). 2 planning records sit against the property, 0 approved, 0 refused.