Emperor House, Second Floor Flat, 12 Church Street, Rickmansworth, WD3 1BS

Emperor House is a mid-terrace house in Rickmansworth (WD3 1BS). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1930-1949 and council tax band B. At 39 m² this is the 4th smallest of 10 units on EPC record in Emperor House, where floor areas span 37–58 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 (47 versus a best of 77). The latest certificate (September 2025) 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 February 2009. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Poor; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

Today's modelled estimate of £164,000 is 88.7% below the 2021 sale of £1,450,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£3,454/sq ft) was about 80.3% above the typical sold price in the postcode. At 39 m² it's 15.2% smaller than the typical home in the postcode (46 m² median across 13 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs). Most recent transfer: December 2021 at £1,450,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.