99 Sir Williams Close, Aylsham, Norwich, NR11 6AY

99 Sir Williams Close is a four-bedroom semi-detached house in Aylsham, Norwich, Norwich (NR11 6AY). It has a recorded floor area of 67 m² (around 724 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (April 2009) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75). The latest certificate is from April 2009, so improvements made since then won't be reflected.

It hasn't traded since September 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1999–2009, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £259,000 sits 62.4% above the 2009 sale of £159,500. On a £-per-square-foot basis, the last sale (£220/sq ft) was about 27.1% above the typical sold price in the postcode. At 67 m² it sits well below the postcode median (98 m² across 38 EPCs), making it one of the more compact homes locally.