7 Gaddesden Grove, Welwyn Garden City, AL7 2LW

7 Gaddesden Grove is a one-bedroom mid-terrace house in Welwyn Garden City (AL7 2LW). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1950-1966 and council tax band B. At 49 m² this is the 8th smallest of 22 units on EPC record in the building, where floor areas span 47–84 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2019) shows a C (score 76), near the top of the C band. Earlier certificates rated it B (November 2008); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Average and window efficiency dropped from Good to Average.

Untraded for 27 years, with the last transfer in January 1999. Sale prices here have outpaced England HPI: 12.8% per year against 0% for the wider region. Today's modelled estimate of £189,000 sits 334.5% above the 1999 sale of £43,500. On a £-per-square-foot basis, the last sale (£82/sq ft) was about 66.6% below the postcode norm. At 49 m² it's 15.5% smaller than the typical home in the postcode (58 m² median across 21 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.