Upper Flat, 15 Gillespie Road, London, N5 1LH

Upper Flat is a mid-terrace house in London (N5 1LH). It has a recorded floor area of 72 m² (around 775 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2022) shows a C (score 77), near the top of the C band. The rating has held steady at C across 4 certificates since October 2008. Between certificates, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good.

Untraded for 20 years, with the last transfer in June 2006. Across 2000–2006, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £602,000 sits 162.9% above the 2006 sale of £229,000. On a £-per-square-foot basis, the last sale (£295/sq ft) was about 51% below the postcode norm. 4 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 72 m² it's 29.4% smaller than the typical home in the postcode (102 m² median across 31 EPCs). Its energy rating outperforms most of the postcode (better than 84% of similar EPCs).