Our Data Sources
20, Mariner Square, Sunderland has no records in the Land Registry and a single entry in the EPC database dated November 2017.
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 20, Mariner Square, Sunderland would be worth £121,664, with a potential rental value of £657 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £107,760, with a rental value of £582 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
20, Mariner Square, Sunderland has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 Nov 2017.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 7 sales of comparable properties within 830 metres of 20, Mariner Square, Sunderland since 2012.
Most recently, 5, Smyrma Place, Sunderland, SR1 2HY, a freehold house, sold at £100,000 on the 9th October 2025.
Read more about house prices in SR1.
- Sold Oct 2025£100,000 | 4 Bed House5, Smyrma Place, Sunderland, SR1 2HY5, Smyrma Place, Sunderland, SR1 2HY
- Sold Sep 2025£71,000 | 4 Bed House10, James Williams Street, Sunderland, SR1 2JS10, James Williams Street, Sunderland, SR1 2JS
- Sold May 2024£89,950 | 4 Bed House8, Nesham Terrace, Sunderland, SR1 2DY8, Nesham Terrace, Sunderland, SR1 2DY
- Sold Oct 2023£108,000 | 4 Bed House3, North Durham Street, Sunderland, SR1 2HD3, North Durham Street, Sunderland, SR1 2HD
- Sold Aug 2023£108,000 | 4 Bed House1, North Durham Street, Sunderland, SR1 2HD1, North Durham Street, Sunderland, SR1 2HD
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £92,308, ranging from £69,752 to £118,155.
- 18 Mariner Square
4 Bed House | 8 m | Est. Value: £118,155
- 14 Mariner Square
3 Bed House | 19 m | Est. Value: £91,430
- 24 Mariner Square
3 Bed House | 23 m | Est. Value: £91,430
- 12 Mariner Square
3 Bed House | 24 m | Est. Value: £91,430
- 26 Mariner Square
3 Bed House | 28 m | Est. Value: £91,430
Location Comparison
Our analysis of the public data ranks 20, Mariner Square, Sunderland as the 4th largest and the 4th most expensive of the 40 addresses on Mariner Square, Sunderland, SR1.
Against the SR1 postcode district average, it is £70k less expensive than the typical property.
More reading links
Schools Nearby
- Dame Dorothy Primary School700 m away
- Hudson Road Primary School1.0 km away
- Redby Academy1.6 km away
- St Anthony's Girls' Catholic Academy2.0 km away
- Thornhill Academy2.3 km away
- Southmoor Academy2.4 km away
More reading links
Public Transport Nearby
- Sunderland|1.2 km away
- Seaham|8.4 km away
- Heworth|13.0 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












