112a, Estcourt Road, Watford, WD17 2PZ

112a is an end-of-terrace house in Watford (WD17 2PZ). It has a recorded floor area of 44 m² (around 474 sq ft) and construction records dating it to 1900-1929. At 44 m² this is the smallest unit on EPC record across the building (44–108 m²). The building's EPC ratings span G to B across 40 units on file. The latest certificate (June 2020) shows a C (score 69), just inside the C band. The rating has held steady at C across 3 certificates since October 2009. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor.

Untraded for 23 years, with the last transfer in December 2002. Across 2001–2002, sale prices on this property compounded at 22.5% per year. Today's modelled estimate of £269,000 sits 79.3% above the 2002 sale of £150,000. On a £-per-square-foot basis, the last sale (£317/sq ft) was about 15.7% above the typical sold price in the postcode. At 44 m² it sits well below the postcode median (71 m² across 39 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 79% of similar EPCs).