57b, Grand Parade, Green Lanes, London, N4 1AF

57b is a mid-terrace house in London (N4 1AF). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (October 2025) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since October 2015. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Good; while window efficiency dropped from Good to Poor. At 56 m² this is the 3rd smallest of 33 units on EPC record in the building, where floor areas span 44–110 m². The building's EPC ratings span E to B across 33 units on file.

Held since March 2004 — that's 22 years off the open market, well above the local norm. Across 1997–2004, sale prices on this property compounded at 16.4% per year. Today's modelled estimate of £419,000 sits 199.3% above the 2004 sale of £140,000. On a £-per-square-foot basis, the last sale (£232/sq ft) was about 41.8% above the typical sold price in the postcode. 4 planning records sit against the property, 2 approved, 2 refused. At 56 m² it's 20% smaller than the typical home in the postcode (70 m² median across 42 EPCs).