30 Langstone Ley, Welwyn Garden City, AL7 1FQ

30 Langstone Ley is a three-bedroom mid-terrace house in Welwyn Garden City (AL7 1FQ). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (January 2018) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since October 2010. Between certificates, lighting went from Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 89).

Held since May 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £470,000 sits 71.3% above the 2007 sale of £274,345. On a £-per-square-foot basis, the last sale (£245/sq ft) was about 19.6% below the postcode norm.