According to data from HM Land Registry, 21, Byron Terrace, Seaham sits on a plot of 113 m².

We have plot size data on 38 out of 40 other houses in the postcode and 21, Byron Terrace, Seaham sits on the 14th largest plot.

21, Byron Terrace, Seaham has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 03 Mar 2023.

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

According to HM Land Registry, 21, Byron Terrace, Seaham was last sold on 1st May 2026 for £90,000 and was recorded as a freehold house.

The property has had 4 sales since 1995.

Since May 2026, the market for similar properties has dropped by 33.5%.

• Sold May 2026£90,000
• Sold Oct 2023£76,500
• Sold Feb 2010£37,500

According to the Land Registry and our network of Estate Agents, there have been 58 sales of properties similar to 21, Byron Terrace, Seaham within a radius of 860 metres since 2010.

The most recent example is 27, Byron Terrace, Seaham, SR7 0HX, a freehold house which sold for £80,000 on the 5th December 2025.

Read more about house prices in SR7.

• Sold Dec 2025£80,000 | 3 Bed House27, Byron Terrace, Seaham, SR7 0HX27, Byron Terrace, Seaham, SR7 0HX
• Sold Nov 2025£123,000 | 3 Bed House31, Byron Terrace, Seaham, SR7 0HX31, Byron Terrace, Seaham, SR7 0HX
• Sold Apr 2025£72,500 | 3 Bed House6, Byron Terrace, Seaham, SR7 0HX6, Byron Terrace, Seaham, SR7 0HX
• Sold Mar 2025£75,000 | 3 Bed House9, Byron Terrace, Seaham, SR7 0HX9, Byron Terrace, Seaham, SR7 0HX
• Sold Nov 2024£90,000 | 3 Bed House18, Byron Terrace, Seaham, SR7 0HX18, Byron Terrace, Seaham, SR7 0HX
• Sold May 2024£88,000 | 3 Bed House28, Byron Terrace, Seaham, SR7 0HX28, Byron Terrace, Seaham, SR7 0HX
• Sold Jan 2024£115,000 | 3 Bed House26, Byron Terrace, Seaham, SR7 0HX26, Byron Terrace, Seaham, SR7 0HX
• Sold May 2023£100,000 | 3 Bed House16, Park View, Seaham, SR7 0HR16, Park View, Seaham, SR7 0HR
• Sold Feb 2023£80,000 | 3 Bed House6, Park View, Seaham, SR7 0HR6, Park View, Seaham, SR7 0HR
• Sold Oct 2022£88,000 | 3 Bed House29, Byron Terrace, Seaham, SR7 0HX29, Byron Terrace, Seaham, SR7 0HX
• Sold Sep 2022£108,000 | 3 Bed House10, St. Johns Terrace, Seaham, SR7 0JR10, St. Johns Terrace, Seaham, SR7 0JR
• Sold May 2022£91,000 | 3 Bed House17, Byron Terrace, Seaham, SR7 0HX17, Byron Terrace, Seaham, SR7 0HX
• Sold Apr 2021£96,000 | 3 Bed House3, Byron Terrace, Seaham, SR7 0HX3, Byron Terrace, Seaham, SR7 0HX
• Sold Apr 2018£57,000 | 3 Bed House19, Byron Terrace, Seaham, SR7 0HX19, Byron Terrace, Seaham, SR7 0HX
• Sold Jan 2018£65,000 | 3 Bed House20, Byron Terrace, Seaham, SR7 0HX20, Byron Terrace, Seaham, SR7 0HX
• Sold Jun 2016£75,000 | 3 Bed House1, Park View, Seaham, SR7 0HR1, Park View, Seaham, SR7 0HR
• Sold Dec 2014£64,400 | 3 Bed House25, Byron Terrace, Seaham, SR7 0HX25, Byron Terrace, Seaham, SR7 0HX
• Sold Sep 2014£45,000 | 3 Bed House35, Byron Terrace, Seaham, SR7 0HX35, Byron Terrace, Seaham, SR7 0HX
• Sold Nov 2012£62,500 | 3 Bed House12, Byron Terrace, Seaham, SR7 0HX12, Byron Terrace, Seaham, SR7 0HX
• Sold Sep 2010£80,000 | 3 Bed House22, Byron Terrace, Seaham, SR7 0HX22, Byron Terrace, Seaham, SR7 0HX

Byron Terrace, Seaham, SR7 has a total of 42 addresses. According to our analysis of all the public data, 21, Byron Terrace, Seaham is the 31st largest and the 31st most expensive property on the street.

When compared to the postcode district it is £29k less expensive than the average property in SR7.

• New Seaham Academy

  100 m away
• St Cuthbert's Catholic Primary School, Seaham

  300 m away
• Westlea Primary School

  600 m away

• Seaham High School

  500 m away
• Venerable Bede Church of England Academy

  3.7 km away
• Farringdon Community Academy

  5.0 km away

• Seaham

  |

  1.9 km away
• Sunderland

  |

  6.9 km away
• Horden

  |

  10.1 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.