20B, Gray Street, Northampton has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 15 Feb 2022.

The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 24 sales of comparable properties within 330 metres of 20B, Gray Street, Northampton since 2016.

Most recently, 141, Kettering Road, Northampton, NN1 4BS, a leasehold flat, sold at £200,000 on the 15th January 2026.

Read more about house prices in NN1.

• Sold Jan 2026£200,000 | 3 Bed Flat141, Kettering Road, Northampton, NN1 4BS141, Kettering Road, Northampton, NN1 4BS
• Sold Nov 2025£164,000 | 3 Bed FlatFlat 10, 4, Grove Road, Northampton, NN1 3LGFlat 10, 4, Grove Road, Northampton, NN1 3LG
• Sold Aug 2025£177,500 | 3 Bed FlatFlat 5, 4, Grove Road, Northampton, NN1 3LGFlat 5, 4, Grove Road, Northampton, NN1 3LG
• Sold Jul 2025£190,000 | 3 Bed FlatFlat 2, Eaton House 141, Clare Street, Northampton, NN1 3JAFlat 2, Eaton House 141, Clare Street, Northampton, NN1 3JA
• Sold Dec 2024£210,000 | 2 Bed FlatFlat 3, Grove Works 72, Clare Street, Northampton, NN1 3LSFlat 3, Grove Works 72, Clare Street, Northampton, NN1 3LS
• Sold Jun 2023£170,000 | 2 Bed FlatFlat 1, 78, Cowper Street, Northampton, NN1 3QRFlat 1, 78, Cowper Street, Northampton, NN1 3QR
• Sold Nov 2022£160,000 | 2 Bed FlatFlat 2, 78, Cowper Street, Northampton, NN1 3QRFlat 2, 78, Cowper Street, Northampton, NN1 3QR
• Sold Oct 2022£170,000 | 3 Bed FlatFlat 3, 78, Cowper Street, Northampton, NN1 3QRFlat 3, 78, Cowper Street, Northampton, NN1 3QR
• Sold Mar 2022£176,000 | 3 Bed FlatFlat 4, 1, Hood Street, Northampton, NN1 3QTFlat 4, 1, Hood Street, Northampton, NN1 3QT
• Sold Mar 2022£165,000 | 3 Bed FlatFlat 3, Albany House 131, Great Russell Street, Northampton, NN1 3BUFlat 3, Albany House 131, Great Russell Street, Northampton, NN1 3BU
• Sold Nov 2021£183,500 | 2 Bed FlatFlat 4, Eaton House 141, Clare Street, Northampton, NN1 3JAFlat 4, Eaton House 141, Clare Street, Northampton, NN1 3JA
• Sold Nov 2021£172,500 | 2 Bed FlatFlat 5, Eaton House 141, Clare Street, Northampton, NN1 3JAFlat 5, Eaton House 141, Clare Street, Northampton, NN1 3JA
• Sold Sep 2021£160,000 | 3 Bed FlatFlat 1, Albany House 131, Great Russell Street, Northampton, NN1 3BUFlat 1, Albany House 131, Great Russell Street, Northampton, NN1 3BU
• Sold Jan 2021£162,000 | 3 Bed FlatFlat 3, 1, Hood Street, Northampton, NN1 3QTFlat 3, 1, Hood Street, Northampton, NN1 3QT
• Sold Dec 2020£160,000 | 3 Bed FlatFlat 6, Albany House 131, Great Russell Street, Northampton, NN1 3BUFlat 6, Albany House 131, Great Russell Street, Northampton, NN1 3BU
• Sold Feb 2020£157,000 | 3 Bed FlatFlat 4, Albany House 131, Great Russell Street, Northampton, NN1 3BUFlat 4, Albany House 131, Great Russell Street, Northampton, NN1 3BU
• Sold Nov 2018£159,950 | 2 Bed FlatFlat 4, Grove Works 72, Clare Street, Northampton, NN1 3LSFlat 4, Grove Works 72, Clare Street, Northampton, NN1 3LS
• Sold Mar 2018£190,000 | 3 Bed FlatFlat 12, Grove Works 74, Clare Street, Northampton, NN1 3LSFlat 12, Grove Works 74, Clare Street, Northampton, NN1 3LS
• Sold Nov 2017£290,000 | 3 Bed FlatBasement Flat, 22, Watkin Terrace, Northampton, NN1 3ERBasement Flat, 22, Watkin Terrace, Northampton, NN1 3ER
• Sold Sep 2016£182,500 | 2 Bed FlatFlat 12, 4, Grove Road, Northampton, NN1 3LGFlat 12, 4, Grove Road, Northampton, NN1 3LG

Our analysis of the public data ranks 20B, Gray Street, Northampton as the 34th largest and the 36th most expensive of the 87 addresses on Gray Street, Northampton, NN1.

Against the NN1 postcode district average, it is £37k less expensive than the typical property.

• Stimpson Avenue Academy

  800 m away
• Castle Academy

  800 m away
• Vernon Terrace Primary School

  900 m away

• Malcolm Arnold Academy

  1.1 km away
• Northampton School for Boys

  1.5 km away
• Northampton School for Girls

  2.5 km away

• Northampton

  |

  1.5 km away
• Long Buckby

  |

  14.6 km away
• Wellingborough

  |

  15.8 km away

Environment Agency data suggests this area has a Very Low risk of flooding.