4 Mason Avenue, Whitley Bay, NE26 1AQ

4 Mason Avenue is a two-bedroom mid-terrace house in Whitley Bay (NE26 1AQ). It has a recorded floor area of 140 m² (around 1507 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (February 2014) shows an E (score 45), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2009); the latest reading is one band lower. Between certificates, wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from February 2014, so improvements made since then won't be reflected.

Untraded for 28 years, with the last transfer in April 1998. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £270,000 sits 350% above the 1998 sale of £60,000. On a £-per-square-foot basis, the last sale (£40/sq ft) was about 66.4% below the postcode norm.