Flat 4, 6 Mason Avenue, Whitley Bay, NE26 1AQ

Flat 4 is a two-bedroom mid-terrace house in Whitley Bay (NE26 1AQ). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1900-1929 and council tax band A. At 58 m² this is the 4th smallest of 6 units on EPC record in the building, where floor areas span 43–149 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (May 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79). The latest certificate is from May 2015, so improvements made since then won't be reflected.

Held since August 2007 — that's 19 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 58 m² it sits well below the postcode median (131 m² across 15 EPCs), making it one of the more compact homes locally. Across 2002–2007, sale prices on this property compounded at 15.8% per year. Today's modelled estimate of £158,000 is 28.5% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£197/sq ft) was about 77.1% above the typical sold price in the postcode.