18, Grantham Avenue
18, Grantham Avenue
Description & Estimates
18, Grantham Avenue, Seaham is described in the public record as a mid-century house with 592 ft2 of internal area.
Locally, houses of this size normally have 2 bedrooms with a garden.
Our estimate of the sale value of 18, Grantham Avenue, Seaham is £112,928 and its rental estimate is £727 per month, given the available information and assuming reasonable condition.
Grantham Avenue, Seaham, SR7 falls within the SR7 postal district.
Our Data Sources
18, Grantham Avenue, Seaham has no records in the the Land Registry and a single entry in the EPC database dated February 2026.
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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 18, Grantham Avenue, Seaham, we estimate a market value of £118,574 and a rental value of £764 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £105,023 and £676 per month respectively.
Recent Market Change
Over the last year, 18, Grantham Avenue, Seaham has seen its estimated sale value grow by £698 (0.6%) and its estimated rental value climb by £23 per month (3.1%). This results in an estimated gross rental yield of 7.7%.
Energy Efficiency
18, Grantham Avenue, Seaham has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Feb 2026.
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
Over the past 2 years 3 properties similar to 18, Grantham Avenue, Seaham have sold within a radius of 700 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th March 2026, was 25, Grantham Avenue, Seaham, SR7 8LZ, a freehold house which sold for £115,000.
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
Of the 68 addresses on Grantham Avenue, Seaham, SR7, 18, Grantham Avenue, Seaham comes out as the 27th largest and the 7th most expensive in our analysis of the public data.
It is also £10k less expensive than the average property across the SR7 district.
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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
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Public Transport Nearby
From 18, Grantham Avenue, Seaham, the nearest station is Seaham, 800 metres away.
- 800mSeaham
- 8.1kmSunderland
- 8.8kmHorden
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
