21 Millennium Wharf, Wharf Lane, Rickmansworth, WD3 1AZ

21 Millennium Wharf is a two-bedroom end-of-terrace house in Rickmansworth (WD3 1AZ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (April 2021) returns a B (score 82), comfortably above the UK average. When first surveyed in February 2011 the rating was C, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and lighting went from Average to Very Good. At 72 m² this is the 10th smallest of 24 units on EPC record in the building, where floor areas span 48–124 m². The building's EPC ratings span D to B, with this unit at the top. Other recorded features include a balcony.

Sold June 2021 for £392,500. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs). Across 2000–2021, sale prices on this property compounded at 4% per year. On a £-per-square-foot basis, the last sale (£506/sq ft) was about 52.6% above the typical sold price in the postcode.