Flat 2, 21 Hester Street, Northampton, NN2 6AP

Flat 2 is a one-bedroom mid-terrace house in Northampton (NN2 6AP). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1900-1929 and council tax band A. At 41 m² this is the smallest unit on EPC record across the building (41–53 m²). The building's EPC ratings span F to C across 4 units on file. The latest certificate (April 2021) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2011 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump. Main heating runs on electricity.

At 41 m² it sits well below the postcode median (141 m² across 26 EPCs), making it one of the more compact homes locally. Across 2000–2016, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £109,000 is 29.8% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£190/sq ft) was about 70.2% above the typical sold price in the postcode. Last sold in March 2016, so it's been off the market for around 10 years.