12 Flackwell House, Kimble Close, Watford, WD18 6UZ

12 Flackwell House is a detached house in Watford (WD18 6UZ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1996-2002 and council tax band C. At 72 m² this is the largest unit on EPC record across the building (48–72 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (September 2024) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since February 2010. Between certificates, lighting went from Average to Good; while hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 80). Main heating runs on electricity.

At 72 m² it's 16.1% larger than the typical home in the postcode (62 m² median across 9 EPCs). Across 2004–2020, sale prices on this property compounded at 3.3% per year. On a £-per-square-foot basis, the last sale (£316/sq ft) was about 44.9% above the typical sold price in the postcode. Most recent transfer: March 2020 at £245,000.