4a, Congreve Close, Aldermaston, Reading, RG7 4LU

4a is a one-bedroom semi-detached house in Aldermaston, Reading, Reading (RG7 4LU). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (November 2012) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in March 2010 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on electricity. The latest certificate is from November 2012, so improvements made since then won't be reflected. At 44 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 39–73 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 (43 versus a best of 72). Other recorded features include notable views.

It hasn't traded since May 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Today's modelled estimate of £215,000 is 48.3% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£306/sq ft) was about 15.7% below the postcode norm.