9 Walpole Buildings, Church Street, Rickmansworth, WD3 1BU

9 Walpole Buildings is a one-bedroom end-of-terrace house in Rickmansworth (WD3 1BU). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (January 2021) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in February 2010 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity. At 43 m² this is the 2nd smallest of 8 units on EPC record in the building, where floor areas span 40–69 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 74). Other recorded features include a balcony.

10 years since the last transfer (October 2016). Across the public record there are 7 sales, relatively high churn for a single property. At 43 m² it's 26.6% smaller than the typical home in the postcode (59 m² median across 7 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Across 2000–2016, sale prices on this property compounded at 7.1% per year. On a £-per-square-foot basis, the last sale (£598/sq ft) was about 242.9% above the typical sold price in the postcode.