9 Thurnams House, St Pauls Square, Carlisle, CA1 1AF

9 Thurnams House is a one-bedroom mid-terrace house in Carlisle (CA1 1AF). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to before 1900 and council tax band B. At 48 m² this is the smallest unit on EPC record across the building (48–121 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 (46 versus a best of 77). The latest certificate (August 2023) shows an E (score 46), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 62). Main heating runs on electricity.

Held since December 2009 — that's 16 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 48 m² it's 25% smaller than the typical home in the postcode (64 m² median across 5 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £114,000 sits 90% above the 2009 sale of £60,000. On a £-per-square-foot basis, the last sale (£116/sq ft) was about 32.2% below the postcode norm.