Marion House, Flat 1, Bastins Close, Park Gate, Southampton, SO31 1DZ

Marion House is a semi-detached house in Park Gate, Southampton, Southampton (SO31 1DZ). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 2003-2006 and council tax band B. At 70 m² this is the 18th smallest of 19 units on EPC record in Marion House, where floor areas span 35–74 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (May 2023) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since November 2011. Between certificates, window efficiency went from Average to Good and lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good.

Across 2006–2023, sale prices on this property compounded at 1.8% per year. Today's modelled estimate of £187,000 is 13.8% below the 2023 sale of £217,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£288/sq ft) was about 19.7% above the typical sold price in the postcode. Most recent transfer: October 2023 at £217,000. Across the public record there are 5 sales, relatively high churn for a single property.