26, Grantham Avenue
26, Grantham Avenue
Description & Estimates







The public record describes 26, Grantham Avenue, Seaham as an early-century house with 559 ft2 of internal area, sitting on a 153 m2 plot.
In this area, houses of this size normally have 2 bedrooms with a garden.
26, Grantham Avenue, Seaham has an estimated sale value of £109,813 and an estimated rental value of £707 per month, assuming reasonable condition and based on the information available.
Grantham Avenue, Seaham, SR7 lies within the SR7 postal district.
Our Data Sources
26, Grantham Avenue, Seaham has no records in the the Land Registry and a single entry in the EPC database dated April 2025.
We combine this information with public data 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 26, Grantham Avenue, Seaham would be worth £115,303, with a potential rental value of £743 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £102,126, with a rental value of £658 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 26, Grantham Avenue, Seaham has increased by £678 (0.6%) over the last year. During the same period, its estimated monthly rental value has grown by £22 (3.1%). The property's estimated gross yield is currently 7.7%.
Plot Size
26, 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 16th largest.
Energy Efficiency
26, Grantham Avenue, Seaham has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 21 Apr 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 700 metres of 26, Grantham Avenue, Seaham across the last 2 years.
Most recently, 25, Grantham Avenue, Seaham, SR7 8LZ, a freehold house, sold at £115,000 on the 11th March 2026.
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 26, Grantham Avenue, Seaham as the 48th largest and the 26th most expensive of the 68 addresses on Grantham Avenue, Seaham, SR7.
Against the SR7 postcode district average, it is £13k less expensive than the typical property.
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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 26, 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.

