21 Norbury Avenue, Watford, WD24 4PL

21 Norbury Avenue is a four-bedroom end-of-terrace house in Watford (WD24 4PL). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to 1991-1995 and council tax band F. The latest certificate (April 2017) shows a D (score 61), on the cusp of jumping into the C band. Earlier certificates rated it C (October 2010); the latest reading is one band lower. Between certificates, roof efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 75).

At 105 m² the property is well over the postcode median (57 m² across 25 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 9 years since the last transfer (October 2017). Across the public record there are 5 sales, relatively high churn for a single property. Across 2001–2017, sale prices on this property compounded at 6% per year. On a £-per-square-foot basis, the last sale (£509/sq ft) was about 64.1% above the typical sold price in the postcode.