3a, Elstar Lane, Great Horkesley, Colchester, CO6 4FE

3a is a two-bedroom detached house in Great Horkesley, Colchester, Colchester (CO6 4FE). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 2007 onwards and council tax band C. The latest certificate (March 2014) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2009. Between certificates, lighting went from Good to Very Good and main heating went from Very Poor to Poor; while wall efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 82), a 2-band jump. Main heating runs on electricity. The latest certificate is from March 2014, so improvements made since then won't be reflected. The home occupies a cul-de-sac position.

It hasn't traded since October 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. Today's modelled estimate of £266,000 sits 83.4% above the 2009 sale of £145,000. On a £-per-square-foot basis, the last sale (£221/sq ft) was about 27.1% below the postcode norm.