Flat 1, 255 St Albans Road, Watford, WD24 5BQ

Flat 1 is a one-bedroom mid-terrace house in Watford (WD24 5BQ). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 2007 onwards and council tax band B. At 37 m² this is the smallest unit on EPC record across the building (37–53 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (November 2019) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since December 2009. Between certificates, wall efficiency dropped from Very Good to Good.

At 37 m² it's 27.5% smaller than the typical home in the postcode (51 m² median across 19 EPCs). Its energy rating outperforms most of the postcode (better than 84% of similar EPCs). Across 2010–2016, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £212,000 is 10.4% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£482/sq ft) was about 38% above the typical sold price in the postcode. Last sold in February 2016, so it's been off the market for around 10 years.