Flat 2, 20 Park Street, Towcester, NN12 6DQ

Flat 2 is a one-bedroom end-of-terrace house in Towcester (NN12 6DQ). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (March 2021) shows an E (score 54), well below the UK norm with real room to improve. When first surveyed in November 2008 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Good and hot-water efficiency went from Poor to Average. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity. At 42 m² this is the 2nd smallest of 5 units on EPC record in the building, where floor areas span 34–49 m². The building's EPC ratings span F to D across 5 units on file.

It hasn't traded since November 2001, a hold of 25 years that's notably long for the area. Across the public record there are 4 sales, relatively high churn for a single property. Across 1996–2001, sale prices on this property compounded at 21.2% per year. Today's modelled estimate of £136,000 sits 130.5% above the 2001 sale of £59,000. On a £-per-square-foot basis, the last sale (£131/sq ft) was about 45% below the postcode norm.