9 Sebastian Mews, Great Gonerby, Grantham, NG31 8PR

9 Sebastian Mews is a one-bedroom end-of-terrace house in Great Gonerby, Grantham, Grantham (NG31 8PR). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1991-1995 and council tax band A. At 37 m² this is the 3rd smallest of 8 units on EPC record in the building, where floor areas span 35–54 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (70 versus a worst of 50). Other recorded features include notable views. The latest certificate (November 2021) shows a C (score 70). When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Average to Good and main heating went from Poor to Average; while lighting dropped from Very Good to Good. Main heating runs on electricity.

Sale prices here have outpaced England HPI: 3.3% per year against 0% for the wider region. Today's modelled estimate of £105,000 is 16.7% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£226/sq ft) was about 54.2% above the typical sold price in the postcode. At 37 m² it's 22.9% smaller than the typical home in the postcode (48 m² median across 7 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Sold July 2022 for £90,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.