4b, Grosvenor Road, Watford, WD17 2QT

4b is an end-of-terrace house in Watford (WD17 2QT). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to 1900-1929. The latest certificate (November 2015) shows an F (score 25), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 3-band jump. Main heating runs on electricity. The latest certificate is from November 2015, so improvements made since then won't be reflected.

At 42 m² it sits well below the postcode median (62 m² across 17 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2001–2015, sale prices on this property compounded at 4.8% per year. Today's modelled estimate of £223,000 sits 53.8% above the 2015 sale of £145,000. On a £-per-square-foot basis, the last sale (£321/sq ft) was about 42.7% above the typical sold price in the postcode. Last changed hands 11 years ago, in November 2015.