25, Grantham Avenue
25, Grantham Avenue
Description & Estimates
Public records show 25, Grantham Avenue, Seaham to be an early-century freehold house with 592 ft2 of internal area, sitting on a 153 m2 plot.
In this area, houses of this size normally have 2 bedrooms with a garden.
25, Grantham Avenue, Seaham has an estimated sale value of £112,928 and an estimated rental value of £727 per month, assuming reasonable condition and based on the information available.
Grantham Avenue, Seaham, SR7 lies within the SR7 postal district.
Our Data Sources
25, Grantham Avenue, Seaham has 2 entries in the Land Registry , most recently in March 2026 and a single entry in the EPC database dated April 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 25, Grantham Avenue, Seaham would be worth £118,574, with a potential rental value of £764 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £105,023, with a rental value of £676 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of 25, Grantham Avenue, Seaham has moved up by £698 (0.6%) over the last year. During the same period, its estimated monthly rental value has increased by £23 (3.1%). The property's estimated gross yield is currently 7.7%.
Plot Size
25, Grantham Avenue, Seaham occupies a 153 m2 plot as recorded by HM Land Registry.
Of the 32 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 15th largest.
Energy Efficiency
25, Grantham Avenue, Seaham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
25, Grantham Avenue, Seaham last changed hands on 11th March 2026, selling for £115,000. 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 dropped by 13.4% since March 2026.
- Sold Mar 2026£115,000
- Sold May 2025£110,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 710 metres of 25, Grantham Avenue, Seaham across the last 2 years.
Most recently, 20, Hexham Avenue, Seaham, SR7 8NA, a freehold house, sold at £118,000 on the 9th October 2025.
Read more about house prices in SR7.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 25, Grantham Avenue, Seaham as the 30th largest and the 9th most expensive of the 68 addresses on Grantham Avenue, Seaham, SR7.
Against the SR7 postcode district average, it is £10k less expensive than the typical property.
More reading links
Schools Nearby
- 400mSeaview Primary School
- 800mSeaham Trinity Primary School
- 1.0kmSt Mary Magdalen's Catholic Primary School
- 1.0kmSeaham High School
- 5.0kmVenerable Bede Church of England Academy
- 5.9kmEasington Academy
More reading links
Public Transport Nearby
Seaham station is the nearest stop to 25, Grantham Avenue, Seaham at 800 metres away.
- 800mSeaham
- 8.1kmSunderland
- 8.8kmHorden
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.
