11 Knox Road, Wellingborough, NN8 1HW

11 Knox Road is a three-bedroom semi-detached house in Wellingborough (NN8 1HW). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 1900-1929 and council tax band B. There is a swimming pool on the plot, uncommon for the area. Other recorded features include a self-contained annexe and a basement. At 52 m² this is the 3rd smallest of 30 units on EPC record in the building, where floor areas span 38–281 m². The building's EPC ratings span F to C across 30 units on file. The latest certificate (June 2022) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since January 2017. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to C (score 71). Main heating runs on electricity.

At 52 m² it sits well below the postcode median (81 m² across 29 EPCs), making it one of the more compact homes locally. Last changed hands 9 years ago, in April 2017. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2017, sale prices on this property compounded at 7.6% per year. Today's modelled estimate of £253,000 is 40.6% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£322/sq ft) was about 218.9% above the typical sold price in the postcode.