17 Guernsey House, Pioneer Way, Watford, WD18 6ST

17 Guernsey House is a mid-terrace house in Watford (WD18 6ST). It has a recorded floor area of 31 m² (around 334 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (January 2025) shows a C (score 75), near the top of the C band. The rating has held steady at C across 3 certificates since June 2010. Between certificates, window efficiency went from Very Poor to Average, lighting went from Very Poor to Very Good and main heating went from Poor to Average. Main heating runs on electricity. At 31 m² this is the 3rd smallest of 32 units on EPC record in the building, where floor areas span 29–62 m². The building's EPC ratings span E to B across 32 units on file.

Last sold in August 2011, so it's been off the market for around 15 years. Across the public record there are 5 sales, relatively high churn for a single property. Across 1997–2011, sale prices on this property compounded at 7.3% per year. Today's modelled estimate of £158,000 is 43.7% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£330/sq ft) was about 67.4% above the typical sold price in the postcode. At 31 m² it's 20.5% smaller than the typical home in the postcode (39 m² median across 31 EPCs).