Flat 3, 27 St Johns Road, Watford, WD17 1PY

Flat 3 is a two-bedroom semi-detached house in Watford (WD17 1PY). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1900-1929 and council tax band C. At 50 m² this is the largest unit on EPC record across the building (46–50 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (55 versus a best of 69). The latest certificate (May 2020) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 77).

Untraded for 23 years, with the last transfer in October 2003. Across 1999–2003, sale prices on this property compounded at 19.1% per year. Today's modelled estimate of £252,000 sits 91.6% above the 2003 sale of £131,500. On a £-per-square-foot basis, the last sale (£244/sq ft) was about 15.4% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs).