1a, Railway Approach, Haringey, London, N4 1RG

1a is an end-of-terrace house in Haringey, London, London (N4 1RG). It has a recorded floor area of 49 m² (around 527 sq ft) and construction records dating it to before 1900. At 49 m² this is the smallest unit on EPC record across the building (49–66 m²). The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (42 versus a best of 86). The latest certificate (July 2018) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.

It hasn't traded since July 2004, a hold of 22 years that's notably long for the area. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2000–2004, sale prices on this property compounded at 34.6% per year. Today's modelled estimate of £382,000 sits 91% above the 2004 sale of £199,950. On a £-per-square-foot basis, the last sale (£379/sq ft) was about 45.7% above the typical sold price in the postcode.