9 Birds Close, Welwyn Garden City, AL7 4AR

9 Birds Close is a three-bedroom semi-detached house in Welwyn Garden City (AL7 4AR). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (May 2023) shows a C (score 71). When first surveyed in April 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Very Good and hot-water efficiency went from Average to Good. The recommended improvements would push it to B (score 87). The home occupies a cul-de-sac position.

Held since October 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £441,000 sits 100.5% above the 2009 sale of £220,000. On a £-per-square-foot basis, the last sale (£296/sq ft) was about 21.3% above the typical sold price in the postcode. At 69 m² it's 15.9% smaller than the typical home in the postcode (82 m² median across 31 EPCs).