22a, Western Mansions, Great North Road, New Barnet, Barnet, EN5 1AE

22a is a two-bedroom mid-terrace house in New Barnet, Barnet, Barnet (EN5 1AE). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1967-1975 and council tax band B. At 49 m² this is the 16th smallest of 42 units on EPC record in the building, where floor areas span 23–63 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 (50 versus a best of 79). Period features are noted in the property record. The latest certificate (March 2021) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (May 2018); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Average and roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity.

It hasn't traded since February 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count. Today's modelled estimate of £220,000 sits 57.1% above the 2009 sale of £140,000. On a £-per-square-foot basis, the last sale (£265/sq ft) was about 33.8% below the postcode norm.