10a, East Barnet Road, Barnet, EN4 8RW

10a is a mid-terrace house in Barnet (EN4 8RW). It has a recorded floor area of 15 m² (around 161 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2025) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in December 2013 the rating was G, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would lift it to C (score 79), a 2-band jump. Main heating runs on electricity. At 15 m² this is the 3rd smallest of 6 units on EPC record in 10a, where floor areas span 11–17 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 (39 versus a best of 78).

It hasn't traded since August 2003, a hold of 23 years that's notably long for the area. At 15 m² it's 16.7% smaller than the typical home in the postcode (18 m² median across 21 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £443,000 sits 73.7% above the 2003 sale of £255,000. On a £-per-square-foot basis, the last sale (£1,579/sq ft) was about 566.7% above the typical sold price in the postcode.