23 Nightingale Court, Nightingale Road, Rickmansworth, WD3 7BX

23 Nightingale Court is a two-bedroom end-of-terrace house in Rickmansworth (WD3 7BX). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1967-1975 and council tax band D. At 73 m² this is the 15th smallest of 25 units on EPC record in the building, where floor areas span 51–117 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (January 2015) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since November 2008. Between certificates, wall efficiency went from Poor to Good and lighting went from Very Poor to Good. The recommended improvements would push it to C (score 76). The latest certificate is from January 2015, so improvements made since then won't be reflected.

It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Across 1998–2015, sale prices on this property compounded at 9.6% per year. On a £-per-square-foot basis, the last sale (£439/sq ft) was about 56% above the typical sold price in the postcode. Last sold in May 2015, so it's been off the market for around 11 years.