50a, Bordeaux Close, Northampton, NN5 6YR

50a is a two-bedroom end-of-terrace house in Northampton (NN5 6YR). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1991-1995 and council tax band A. At 55 m² this is the 31st smallest of 44 units on EPC record in the building, where floor areas span 36–71 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (46 versus a best of 83). The latest certificate (November 2023) shows an E (score 46), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2013); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good; while window efficiency dropped from Average to Very Poor and hot-water efficiency dropped from Good to Poor. The recommended improvements would push it to D (score 56). Main heating runs on lpg.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £138,000 is 17.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£198/sq ft) was about 30.3% above the typical sold price in the postcode. Last sale on file: £117,500 in February 2020.