12b, Market Place, Kettering, NN16 0AJ

12b is a mid-terrace house in Kettering (NN16 0AJ). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1900-1929. At 47 m² this is the 4th smallest of 5 units on EPC record in the building, where floor areas span 32–48 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (63 versus a best of 75). The latest certificate (June 2022) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2022. Between certificates, roof efficiency dropped from Good to Average. Main heating runs on electricity.

Today's modelled estimate of £139,000 is 37.2% below the 2021 sale of £221,500, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£438/sq ft) was about 61.4% below the postcode norm. One planning record on file: subdivision approved in 2021. Past consents include subdivision, meaningful when judging how the property has evolved. At 47 m² it's 20.5% larger than the typical home in the postcode (39 m² median across 4 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Sold March 2021 for £221,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.