18 Armstrong Close, Borehamwood, WD6 1RR

18 Armstrong Close is a one-bedroom mid-terrace house in Borehamwood (WD6 1RR). It has a recorded floor area of 32 m² (around 344 sq ft), construction records dating it to 1996-2002 and council tax band C. At 32 m² this is the smallest unit on EPC record across the building (32–120 m²). The building's EPC ratings span D to B, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 57). The home occupies a cul-de-sac position. The latest certificate (September 2021) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since May 2011. Between certificates, lighting went from Very Poor to Very Good. Main heating runs on electricity.

At 32 m² it sits well below the postcode median (59 m² across 28 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. On the market in March 2017 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2001–2017, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£719/sq ft) was about 185.2% above the typical sold price in the postcode.