6a, Grosvenor Road, Watford, WD17 2QT

6a is a two-bedroom end-of-terrace house in Watford (WD17 2QT). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (August 2021) shows a D (score 60), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2009); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 77). At 68 m² this is the 12th smallest of 18 units on EPC record in the building, where floor areas span 36–168 m². The building's EPC ratings span F to C across 18 units on file.

On the market in August 2015 and unlisted since — roughly 11 years. Across the public record there are 5 sales, relatively high churn for a single property. At 68 m² it's 15.3% larger than the typical home in the postcode (59 m² median across 17 EPCs). Across 1997–2015, sale prices on this property compounded at 9.1% per year. Today's modelled estimate of £316,000 is 21.5% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£355/sq ft) was about 34.4% above the typical sold price in the postcode.