Flat 1, 5 Northwood Road, London, N6 5TL

Flat 1 is a mid-terrace house in London (N6 5TL). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (September 2018) shows an E (score 54), well below the UK norm with real room to improve. When first surveyed in September 2013 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to D (score 64). Main heating runs on electricity. At 68 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 38–70 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 (54 versus a best of 76).

Held since November 1999 — that's 27 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 68 m² it's 21.4% larger than the typical home in the postcode (56 m² median across 51 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £547,000 sits 248.4% above the 1999 sale of £157,000. On a £-per-square-foot basis, the last sale (£214/sq ft) was about 39.1% below the postcode norm.