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

23 Guernsey House is a one-bedroom mid-terrace house in Watford (WD18 6ST). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1991-1995 and council tax band C. At 39 m² this is the 17th 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. The latest certificate (September 2015) shows a C (score 79), near the top of the C band. The recommended improvements would push it to B (score 83). Main heating runs on electricity. The latest certificate is from September 2015, so improvements made since then won't be reflected.

Held since April 2005 — that's 21 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. Across 1997–2005, sale prices on this property compounded at 13.7% per year. Today's modelled estimate of £206,000 sits 59.7% above the 2005 sale of £129,000. On a £-per-square-foot basis, the last sale (£307/sq ft) was about 57.8% above the typical sold price in the postcode.