40a, Lyonsdown Avenue, New Barnet, Barnet, EN5 1DX

40a is a four-bedroom detached house in New Barnet, Barnet, Barnet (EN5 1DX). It has a recorded floor area of 119 m² (around 1280 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (September 2010) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2009. Between certificates, wall efficiency went from Poor to Average and roof efficiency went from Average to Good; while window efficiency dropped from Poor to Very Poor and lighting dropped from Very Good to Average. The recommended improvements would push it to C (score 71). The latest certificate is from September 2010, so improvements made since then won't be reflected.

It hasn't traded since June 2011, a hold of 15 years that's notably long for the area. At 119 m² it sits well below the postcode median (252 m² across 12 EPCs), making it one of the more compact homes locally. 6 planning records sit against the property, 4 approved, 1 refused. Past consents include an extension, a porch and new windows, meaningful when judging how the property has evolved. Today's modelled estimate of £841,000 is 34.6% above the 2011 sale price.