Our Data Sources
21, Alder Grove, Seaham has 21 entries in the Land Registry, most recently in January 2010 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 21, Alder Grove, Seaham would be worth £187,718, with a potential rental value of £1,042 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £166,264, with a rental value of £923 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Alder Grove, Seaham occupies a 198 m2 plot as recorded by HM Land Registry.
All 23 other houses in this postcode have recorded plot sizes, and this one ranks as the 22nd largest.
Sold Prices
21, Alder Grove, Seaham last changed hands on 29th January 2010, selling for £112,500. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 47.4% since January 2010.
- Sold Jan 2010£112,500
- Sold Jun 2005£119,950
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 66 sales of comparable properties within 810 metres of 21, Alder Grove, Seaham since 2020.
Most recently, 21, Mulberry Way, Seaham, SR7 7DZ, a freehold house, sold at £161,000 on the 16th January 2026.
Read more about house prices in SR7.
- Sold Jan 2026£161,000 | 3 Bed House21, Mulberry Way, Seaham, SR7 7DZ21, Mulberry Way, Seaham, SR7 7DZ
- Sold Dec 2025£166,650 | 3 Bed House14, Roseberry Close, Seaham, SR7 7FA14, Roseberry Close, Seaham, SR7 7FA
- Sold Jun 2025£205,000 | 3 Bed House1, Almond Way, Seaham, SR7 7RU1, Almond Way, Seaham, SR7 7RU
- Sold Jun 2025£210,000 | 3 Bed House1, Mulberry Way, Seaham, SR7 7DZ1, Mulberry Way, Seaham, SR7 7DZ
- Sold Nov 2024£187,000 | 3 Bed House42, Chestnut Way, Seaham, SR7 7RN42, Chestnut Way, Seaham, SR7 7RN
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £192,876, ranging from £58,421 to £246,456.
- 22 Alder Grove
3 Bed House | 7 m | Est. Value: £175,832
- 23 Alder Grove
3 Bed House | 16 m | Est. Value: £197,947
- 8 Almond Way
3 Bed House | 24 m | Est. Value: £183,817
- 24 Alder Grove
3 Bed House | 25 m | Est. Value: £186,128
- 19 Alder Grove
4 Bed House | 28 m | Est. Value: £246,456
Location Comparison
Our analysis of the public data ranks 21, Alder Grove, Seaham as the 21st largest and the 22nd most expensive of the 23 addresses on Alder Grove, Seaham, SR7.
Against the SR7 postcode district average, it is £40k more expensive than the typical property.
More reading links
Schools Nearby
- Seaham Trinity Primary School900 m away
- Seaview Primary School1.0 km away
- Ropery Walk Primary School1.2 km away
- Seaham High School1.8 km away
- Easington Academy5.2 km away
- Venerable Bede Church of England Academy5.9 km away
More reading links
Public Transport Nearby
- Seaham|1.0 km away
- Horden|7.9 km away
- Sunderland|9.0 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












