66, Grantham Avenue
66, Grantham Avenue
Description & Estimates
The public record describes 66, Grantham Avenue, Seaham as an early-century house with 731 ft2 of internal area, sitting on a 187 m2 plot.
In this area, houses of this size normally have 3 bedrooms with a garden.
66, Grantham Avenue, Seaham has an estimated sale value of £102,059 and an estimated rental value of £728 per month, assuming reasonable condition and based on the information available.
Grantham Avenue, Seaham, SR7 lies within the SR7 postal district.
Our Data Sources
66, Grantham Avenue, Seaham has no records in the the Land Registry and a single entry in the EPC database dated July 2016.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 66, Grantham Avenue, Seaham would be worth £107,162, with a potential rental value of £765 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £94,915, with a rental value of £677 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 66, Grantham Avenue, Seaham has grown by £633 (0.6%) over the last year. During the same period, its estimated monthly rental value has climbed by £22 (3.1%). The property's estimated gross yield is currently 8.6%.
Plot Size
66, Grantham Avenue, Seaham occupies a 187 m2 plot as recorded by HM Land Registry.
Of the 20 other houses in this postcode, 13 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
66, Grantham Avenue, Seaham has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 19 Jul 2016.
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 680 metres of 66, 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 66, Grantham Avenue, Seaham as the 10th largest and the 38th most expensive of the 68 addresses on Grantham Avenue, Seaham, SR7.
Against the SR7 postcode district average, it is £21k less expensive than the typical property.
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Schools Nearby
- 100mSeaview Primary School
- 1.0kmSeaham Trinity Primary School
- 1.2kmWestlea Primary School
- 1.0kmSeaham High School
- 5.1kmVenerable Bede Church of England Academy
- 5.7kmEasington Academy
More reading links
Public Transport Nearby
Seaham station is the nearest stop to 66, Grantham Avenue, Seaham at 1.0 kilometres away.
- 1.0kmSeaham
- 8.2kmSunderland
- 8.7kmHorden
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.
