Flat 2, 35 Semilong Road, Northampton, NN2 6BT

Flat 2 is a one-bedroom end-of-terrace house in Northampton (NN2 6BT). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band A. At 40 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 25–40 m². The building's EPC ratings span G to D, with this unit at the top. On EPC score it ranks first in the building (68 versus a worst of 20). The latest certificate (May 2025) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in March 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. Main heating runs on electricity.

Across 2004–2017, sale prices on this property compounded at 0.8% per year. Today's modelled estimate of £108,000 is 18.7% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£211/sq ft) was about 107.1% above the typical sold price in the postcode. Last sold in September 2017, so it's been off the market for around 9 years.