Rockstone Court, Flat 5, Rockstone Lane, Southampton, SO14 6HZ

Rockstone Court is a two-bedroom detached house in Southampton (SO14 6HZ). It has a recorded floor area of 53 m² (around 570 sq ft) and construction records dating it to 1983-1990. At 53 m² this is the 8th smallest of 9 units on EPC record in Rockstone Court, where floor areas span 43–55 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (52 versus a best of 78). Our model identifies extension potential, subject to local planning policy. The latest certificate (July 2024) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2011); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to D (score 63). Main heating runs on electricity.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1998–2025, sale prices on this property compounded at 5.7% per year. Today's modelled estimate of £165,000 sits 73.7% above the 2025 sale of £95,000. On a £-per-square-foot basis, the last sale (£167/sq ft) was about 36% below the postcode norm. A recent sale: £95,000 in July 2025. One planning record on file: new windows approved in 2025. Past consents include new windows, meaningful when judging how the property has evolved.