18 20, Flat F, Friern Barnet Road, London, N11 1NA

18 20 is a mid-terrace house in London (N11 1NA). It has a recorded floor area of 40 m² (around 431 sq ft) and construction records dating it to 1930-1949. At 40 m² this is the 4th smallest of 6 units on EPC record in 18 20, where floor areas span 35–53 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (68 versus a best of 74). The latest certificate (October 2019) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2009. The recommended improvements would push it to C (score 80).

It hasn't traded since November 2005, a hold of 21 years that's notably long for the area. Today's modelled estimate of £239,000 sits 63.7% above the 2005 sale of £146,000. On a £-per-square-foot basis, the last sale (£339/sq ft) was about 121.8% above the typical sold price in the postcode. At 40 m² it sits well below the postcode median (58 m² across 20 EPCs), making it one of the more compact homes locally.