1 Haldens House, Haldens, Welwyn Garden City, AL7 1DE

1 Haldens House is a three-bedroom end-of-terrace house in Welwyn Garden City (AL7 1DE). It has a recorded floor area of 118 m² (around 1270 sq ft), construction records dating it to 1950-1966 and council tax band C. At 118 m² this is the 8th smallest of 9 units on EPC record in the building, where floor areas span 74–118 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (66 versus a best of 79). The latest certificate (August 2012) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72). The latest certificate is from August 2012, so improvements made since then won't be reflected.

Sale prices here have outpaced England HPI: 5.2% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£236/sq ft) was about 70.5% above the typical sold price in the postcode. At 118 m² the property is well over the postcode median (77 m² across 8 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 9 years since the last transfer (February 2017). Across the public record there are 4 sales, relatively high churn for a single property.