11 Grasmere Close, Watford, WD25 7JH

11 Grasmere Close is a one-bedroom end-of-terrace house in Watford (WD25 7JH). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1983-1990 and council tax band B. At 35 m² this is the smallest unit on EPC record across the building (35–49 m²). The building's EPC ratings span E to C across 17 units on file. The latest certificate (February 2019) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2008. Between certificates, wall efficiency went from Average to Good, lighting went from Very Poor to Very Good and main heating went from Poor to Average. The recommended improvements would push it to C (score 74). Main heating runs on electricity.

Untraded for 26 years, with the last transfer in November 2000. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £187,000 sits 151% above the 2000 sale of £74,500. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 23.4% below the postcode norm.