9a, Westland Road, Watford, WD17 1QR

9a is a mid-terrace house in Watford (WD17 1QR). It has a recorded floor area of 63 m² (around 678 sq ft) and construction records dating it to 1930-1949. At 63 m² this is the 24th smallest of 39 units on EPC record in the building, where floor areas span 33–153 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 81). The latest certificate (June 2014) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump. Main heating runs on electricity. The latest certificate is from June 2014, so improvements made since then won't be reflected.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £313,000 is 17.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£394/sq ft) was about 33.8% above the typical sold price in the postcode. Last changed hands 10 years ago, in April 2016.