According to data from HM Land Registry, 21, Hawthorn Square, Seaham sits on a plot of 124 m².

We have plot size data on 15 out of 22 other houses in the postcode and 21, Hawthorn Square, Seaham sits on the 8th largest plot.

21, Hawthorn Square, Seaham has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Aug 2013.

The property is not 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, Hawthorn Square, Seaham was last sold on 12th August 2002 for £6,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold Aug 2002£6,000

According to the Land Registry and our network of Estate Agents, there have been 41 sales of properties similar to 21, Hawthorn Square, Seaham within a radius of 720 metres since 2009.

The most recent example is 2, Cottages Road, Seaham, SR7 7RL, a freehold house which sold for £47,500 on the 10th December 2025.

Read more about house prices in SR7.

• Sold Dec 2025£47,500 | 3 Bed House2, Cottages Road, Seaham, SR7 7RL2, Cottages Road, Seaham, SR7 7RL
• Sold Oct 2024£68,000 | 3 Bed House5, Wear Street, Seaham, SR7 7ER5, Wear Street, Seaham, SR7 7ER
• Sold Oct 2024£110,000 | 3 Bed House2, Alexandrina Street, Seaham, SR7 7HU2, Alexandrina Street, Seaham, SR7 7HU
• Sold Sep 2024£74,250 | 3 Bed House28, Garron Street, Seaham, SR7 7QR28, Garron Street, Seaham, SR7 7QR
• Sold Jul 2024£62,000 | 3 Bed House1, Cottages Road, Seaham, SR7 7RL1, Cottages Road, Seaham, SR7 7RL
• Sold Feb 2024£104,000 | 3 Bed House7, Aline Street, Seaham, SR7 7JU7, Aline Street, Seaham, SR7 7JU
• Sold Nov 2023£38,000 | 3 Bed House15, Alexandrina Street, Seaham, SR7 7HU15, Alexandrina Street, Seaham, SR7 7HU
• Sold Aug 2023£48,000 | 3 Bed House3, Cottages Road, Seaham, SR7 7RL3, Cottages Road, Seaham, SR7 7RL
• Sold Jul 2023£55,000 | 3 Bed House21, Alexandrina Street, Seaham, SR7 7HU21, Alexandrina Street, Seaham, SR7 7HU
• Sold May 2023£65,000 | 3 Bed House27, Alexandrina Street, Seaham, SR7 7HU27, Alexandrina Street, Seaham, SR7 7HU
• Sold Apr 2023£62,000 | 3 Bed House17, Alexandrina Street, Seaham, SR7 7HU17, Alexandrina Street, Seaham, SR7 7HU
• Sold Jul 2022£72,000 | 3 Bed House8, Alexandrina Street, Seaham, SR7 7HU8, Alexandrina Street, Seaham, SR7 7HU
• Sold Jun 2021£70,000 | 3 Bed House3, Wear Street, Seaham, SR7 7ER3, Wear Street, Seaham, SR7 7ER
• Sold May 2021£43,000 | 3 Bed House23, Alexandrina Street, Seaham, SR7 7HU23, Alexandrina Street, Seaham, SR7 7HU
• Sold Jul 2020£46,500 | 4 Bed House16, Alexandrina Street, Seaham, SR7 7HU16, Alexandrina Street, Seaham, SR7 7HU
• Sold Jul 2020£8,250,000 | 3 Bed House49, Hawthorn Square, Seaham, SR7 7DF49, Hawthorn Square, Seaham, SR7 7DF
• Sold Apr 2019£51,500 | 3 Bed House23, Hawthorn Square, Seaham, SR7 7DD23, Hawthorn Square, Seaham, SR7 7DD
• Sold Mar 2019£60,000 | 3 Bed House19, Alexandrina Street, Seaham, SR7 7HU19, Alexandrina Street, Seaham, SR7 7HU
• Sold Jun 2018£49,500 | 3 Bed House38, Hawthorn Square, Seaham, SR7 7DF38, Hawthorn Square, Seaham, SR7 7DF
• Sold Mar 2009£37,000 | 3 Bed House20, Hawthorn Square, Seaham, SR7 7DD20, Hawthorn Square, Seaham, SR7 7DD

Hawthorn Square, Seaham, SR7 has a total of 50 addresses. According to our analysis of all the public data, 21, Hawthorn Square, Seaham is the 6th largest and the 19th most expensive property on the street.

When compared to the postcode district it is £68k less expensive than the average property in SR7.

• St Mary Magdalen's Catholic Primary School

  500 m away
• Seaham Trinity Primary School

  500 m away
• Ropery Walk Primary School

  600 m away

• Seaham High School

  1.9 km away
• Venerable Bede Church of England Academy

  5.3 km away
• Southmoor Academy

  6.4 km away

• Seaham

  |

  500 m away
• Sunderland

  |

  8.0 km away
• Horden

  |

  8.9 km away

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