Our Data Sources
7, Portland Avenue, Seaham has no recent1 records in the the Land Registry and a single entry in the EPC database dated August 2013.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 7, Portland Avenue, Seaham, we estimate a market value of £163,680 and a rental value of £1,013 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £144,974 and £897 per month respectively.
Plot Size
HM Land Registry records the plot of land for 7, Portland Avenue, Seaham as measuring 443 m2.
That makes it the 3rd largest plot in the postcode, where 5 of the 13 other houses have recorded plot data.
Energy Efficiency
7, Portland Avenue, Seaham has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 21 Aug 2013.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 7, Portland Avenue, Seaham completed on 26th November 1999 at £44,500 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
- Sold Nov 1999£44,500
Similar Properties Sold Nearby
Over the past 2 years 58 properties similar to 7, Portland Avenue, Seaham have sold within a radius of 580 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th April 2026, was 57, Cheviot Gardens, Seaham, SR7 0BY, a freehold house which sold for £148,500.
Read more about house prices in SR7.
- Sold Apr 2026£148,500 | 3 Bed House57, Cheviot Gardens, Seaham, SR7 0BY57, Cheviot Gardens, Seaham, SR7 0BY
- Sold Oct 2025£145,000 | 3 Bed House17, Grantham Avenue, Seaham, SR7 8LZ17, Grantham Avenue, Seaham, SR7 8LZ
- Sold Dec 2024£160,000 | 3 Bed House11, Cheviot Gardens, Seaham, SR7 0BY11, Cheviot Gardens, Seaham, SR7 0BY
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 64 addresses on Portland Avenue, Seaham, SR7, 7, Portland Avenue, Seaham comes out as the 4th largest and the 4th most expensive in our analysis of the public data.
It is also £17k more expensive than the average property across the SR7 district.
More reading links
Schools Nearby
- Seaview Primary School500 m away
- Seaham Trinity Primary School900 m away
- St Mary Magdalen's Catholic Primary School1.0 km away
- Seaham High School700 m away
- Venerable Bede Church of England Academy4.7 km away
- Southmoor Academy6.1 km away
More reading links
Public Transport Nearby
- Seaham|900 m away
- Sunderland|7.8 km away
- Horden|9.1 km away
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.












