45, Grantham Avenue, Seaham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Feb 2026.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 100 sales of comparable properties within 710 metres of 45, Grantham Avenue, Seaham since 2015.

Most recently, 64, Jasper Avenue, Seaham, SR7 8NJ, a freehold house, sold at £73,500 on the 22nd May 2026.

Read more about house prices in SR7.

• Sold May 2026£73,500 | 3 Bed House64, Jasper Avenue, Seaham, SR7 8NJ64, Jasper Avenue, Seaham, SR7 8NJ
• Sold Apr 2026£92,000 | 3 Bed House23, The Avenue, Seaham, SR7 8LG23, The Avenue, Seaham, SR7 8LG
• Sold Jan 2026£85,000 | 2 Bed House7, Milton Close, Seaham, SR7 8AP7, Milton Close, Seaham, SR7 8AP
• Sold Oct 2025£118,000 | 2 Bed House20, Hexham Avenue, Seaham, SR7 8NA20, Hexham Avenue, Seaham, SR7 8NA
• Sold Oct 2025£130,000 | 3 Bed House20, Milton Close, Seaham, SR7 8AP20, Milton Close, Seaham, SR7 8AP
• Sold Oct 2025£110,000 | 3 Bed House86, Bethune Avenue, Seaham, SR7 8AF86, Bethune Avenue, Seaham, SR7 8AF
• Sold Jun 2025£80,000 | 3 Bed House24, Eastlea Crescent, Seaham, SR7 8EE24, Eastlea Crescent, Seaham, SR7 8EE
• Sold May 2025£100,000 | 2 Bed House15, Ivy Avenue, Seaham, SR7 8NG15, Ivy Avenue, Seaham, SR7 8NG
• Sold Mar 2025£58,550 | 3 Bed House22, Hexham Avenue, Seaham, SR7 8NA22, Hexham Avenue, Seaham, SR7 8NA
• Sold Feb 2025£120,000 | 3 Bed House65, Ivy Avenue, Seaham, SR7 8NE65, Ivy Avenue, Seaham, SR7 8NE
• Sold Sep 2024£50,000 | 2 Bed House27, Hexham Avenue, Seaham, SR7 8NA27, Hexham Avenue, Seaham, SR7 8NA
• Sold Jun 2024£140,000 | 3 Bed House67, Jasper Avenue, Seaham, SR7 8NJ67, Jasper Avenue, Seaham, SR7 8NJ
• Sold Oct 2023£120,000 | 3 Bed House55, Bethune Avenue, Seaham, SR7 8AF55, Bethune Avenue, Seaham, SR7 8AF
• Sold Aug 2023£89,500 | 3 Bed House27, Milton Close, Seaham, SR7 8AP27, Milton Close, Seaham, SR7 8AP
• Sold Apr 2023£78,500 | 3 Bed House14, Milton Close, Seaham, SR7 8AP14, Milton Close, Seaham, SR7 8AP
• Sold Sep 2022£112,000 | 3 Bed House65, Milton Close, Seaham, SR7 8AR65, Milton Close, Seaham, SR7 8AR
• Sold Jul 2021£83,000 | 3 Bed House48, Frank Avenue, Seaham, SR7 8LT48, Frank Avenue, Seaham, SR7 8LT
• Sold Nov 2020£97,000 | 2 Bed House56, Grantham Avenue, Seaham, SR7 8LX56, Grantham Avenue, Seaham, SR7 8LX
• Sold Oct 2018£65,000 | 3 Bed House45, Exeter Avenue, Seaham, SR7 8LP45, Exeter Avenue, Seaham, SR7 8LP
• Sold Jan 2015£78,000 | 3 Bed House41, The Avenue, Seaham, SR7 8LG41, The Avenue, Seaham, SR7 8LG

Our analysis of the public data ranks 45, Grantham Avenue, Seaham as the 15th largest and the 44th most expensive of the 68 addresses on Grantham Avenue, Seaham, SR7.

Against the SR7 postcode district average, it is £24k less expensive than the typical property.

• Seaview Primary School

  200 m away
• Seaham Trinity Primary School

  900 m away
• St Mary Magdalen's Catholic Primary School

  1.1 km away

• Seaham High School

  1.0 km away
• Venerable Bede Church of England Academy

  5.1 km away
• Easington Academy

  5.8 km away

• Seaham

  |

  900 m away
• Sunderland

  |

  8.2 km away
• Horden

  |

  8.7 km away

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