Flat 2, 3 Claremont Terrace, Sunderland, SR2 7LB

Flat 2 is a detached house in Sunderland (SR2 7LB). It has a recorded floor area of 28 m² (around 301 sq ft), construction records dating it to 1900-1929 and council tax band A. At 28 m² this is the smallest unit on EPC record across the building (28–84 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 (44 versus a best of 78). The latest certificate (February 2022) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 66).

Held since October 2004 — that's 22 years off the open market, well above the local norm. At 28 m² it sits well below the postcode median (76 m² across 38 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2002–2004, sale prices on this property compounded at 65.3% per year. Today's modelled estimate of £113,000 sits 182.5% above the 2004 sale of £40,000. On a £-per-square-foot basis, the last sale (£133/sq ft) was about 46.3% above the typical sold price in the postcode.