20 Courtlands Close, Watford, WD24 5GR

20 Courtlands Close is a one-bedroom end-of-terrace house in Watford (WD24 5GR). It has a recorded floor area of 25 m² (around 269 sq ft), construction records dating it to 1996-2002 and council tax band B. At 25 m² this is the smallest unit on EPC record across the building (25–55 m²). The building's EPC ratings span F to C, with this unit at the top. The latest certificate (April 2021) shows a C (score 77), near the top of the C band. When first surveyed in April 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average and lighting went from Good to Very Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.

At 25 m² it sits well below the postcode median (39 m² across 26 EPCs), making it one of the more compact homes locally. On the market in February 2018 and unlisted since — roughly 8 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 1996–2018, sale prices on this property compounded at 7.8% per year. On a £-per-square-foot basis, the last sale (£680/sq ft) was about 173.5% above the typical sold price in the postcode.