41 Penn Road, Mill End, Rickmansworth, WD3 8QW

41 Penn Road is a two-bedroom semi-detached house in Mill End, Rickmansworth, Rickmansworth (WD3 8QW). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (February 2022) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2009); the latest reading is one band lower. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.

At 79 m² it's 16.2% larger than the typical home in the postcode (68 m² median across 13 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Across 1997–2022, sale prices on this property compounded at 12.1% per year. On a £-per-square-foot basis, the last sale (£527/sq ft) was about 50.8% above the typical sold price in the postcode. Most recent transfer: June 2022 at £448,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.