17 Groom Place, Welwyn Garden City, AL7 1GG

17 Groom Place is a three-bedroom semi-detached house in Welwyn Garden City (AL7 1GG). It has a recorded floor area of 64 m² (around 689 sq ft). At 64 m² this is the smallest unit on EPC record across the building (64–148 m²). The building's EPC ratings span C to B, with this unit at the top. The property has solar panels and underfloor heating on record, all of which lower running costs and tend to lift resale appeal. The latest certificate (December 2016) returns a B (score 83), comfortably above the UK average.

Sale prices here have outpaced England HPI: 1.4% per year against 0% for the wider region. Today's modelled estimate of £503,000 is 16.7% below the 2022 sale of £603,500, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£876/sq ft) was about 142.7% above the typical sold price in the postcode. At 64 m² it sits well below the postcode median (148 m² across 22 EPCs), making it one of the more compact homes locally. Most recent transfer: December 2022 at £603,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.