4a, Ye Corner, Watford, WD19 4BS

4a is a mid-terrace house in Watford (WD19 4BS). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1900-1929 and council tax band A. At 29 m² this is the smallest unit on EPC record across the building (29–75 m²). The building's EPC ratings span E to C across 18 units on file. The latest certificate (September 2020) shows a D (score 56), a step below the typical UK home. The rating has held steady at D across 8 certificates since October 2008. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Average. The recommended improvements would push it to C (score 75). Main heating runs on electricity.

Today's modelled estimate of £174,000 is 81.7% below the 2022 sale of £950,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£3,043/sq ft) was about 982.9% above the typical sold price in the postcode. At 29 m² it's 19.4% smaller than the typical home in the postcode (36 m² median across 17 EPCs). Most recent transfer: June 2022 at £950,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.