9 Elderfield, Welwyn Garden City, AL7 1FN

9 Elderfield is a four-bedroom end-of-terrace house in Welwyn Garden City (AL7 1FN). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (October 2016) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 86).

It hasn't traded since June 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 101 m² the property is well over the postcode median (65 m² across 18 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £516,000 sits 54.5% above the 2007 sale of £333,995. On a £-per-square-foot basis, the last sale (£307/sq ft) was about 15.7% below the postcode norm. One planning record on file: a garage conversion refused in 2014.