15 Grove House, Cadwell Lane, Hitchin, SG4 0AH

15 Grove House is a one-bedroom semi-detached house in Hitchin (SG4 0AH). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1976-1982 and council tax band B. At 45 m² this is the 13th smallest of 14 units on EPC record in the building, where floor areas span 30–45 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 (59 versus a best of 76). Records show the property has been extended at some point in its history. The latest certificate (June 2019) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since April 2009. Between certificates, window efficiency went from Very Poor to Average, lighting went from Poor to Good and main heating went from Poor to Average; while wall efficiency dropped from Good to Average. The recommended improvements would push it to C (score 76). Main heating runs on electricity.

Held since February 2008 — that's 18 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. Sale prices here have outpaced England HPI: 8.8% per year against 0% for the wider region. Today's modelled estimate of £188,000 sits 56.7% above the 2008 sale of £120,000. On a £-per-square-foot basis, the last sale (£248/sq ft) was about 16.7% above the typical sold price in the postcode.