Our Data Sources
6B, St. Marks Avenue, Cardiff has no records in the Land Registry and a single entry in the EPC database dated January 2015.
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
In very good condition, we estimate 6B, St. Marks Avenue, Cardiff would be worth £132,329, with a potential rental value of £883 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £117,205, with a rental value of £782 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
6B, St. Marks Avenue, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Jan 2015.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Properties Sold Nearby
Land Registry records and our Estate Agent network show 657 sales within 510 metres of 6B, St. Marks Avenue, Cardiff since 2010.
Most recently, 340, Whitchurch Road, Cardiff, CF14 3NG, a freehold house, sold at £343,000 on the 21st January 2026.
Read more about house prices in CF14.
- Sold Jan 2026£343,000 | 4 Bed House340, Whitchurch Road, Cardiff, CF14 3NG340, Whitchurch Road, Cardiff, CF14 3NG
- Sold Oct 2025£160,000 | 2 Bed FlatFlat B, 352, Whitchurch Road, Cardiff, CF14 3NHFlat B, 352, Whitchurch Road, Cardiff, CF14 3NH
- Sold Sep 2025£224,000 | 2 Bed Flat350, Whitchurch Road, Cardiff, CF14 3NH350, Whitchurch Road, Cardiff, CF14 3NH
- Sold Aug 2024£300,000 | 3 Bed House10, St. Marks Avenue, Cardiff, CF14 3NW10, St. Marks Avenue, Cardiff, CF14 3NW
- Sold Apr 2024£255,000 | 3 Bed House13, Longspears Avenue, Cardiff, CF14 3NU13, Longspears Avenue, Cardiff, CF14 3NU
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £353,799, ranging from £165,874 to £666,230.
- 6A St. Marks Avenue
2 Bed Flat | 0 m | Est. Value: £165,874
- 8 St. Marks Avenue
3 Bed House | 3 m | Est. Value: £312,349
- 10 St. Marks Avenue
3 Bed House | 8 m | Est. Value: £300,369
- 4 St. Marks Avenue
3 Bed House | 10 m | Est. Value: £304,920
- 12 St. Marks Avenue
4 Bed House | 15 m | Est. Value: £345,886
Location Comparison
Our analysis of the public data ranks 6B, St. Marks Avenue, Cardiff as the 17th largest and the 17th most expensive of the 17 addresses on St. Marks Avenue, Cardiff, CF14.
Against the CF14 postcode district average, it is £250k less expensive than the typical property.
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Schools Nearby
Public Transport Nearby
- Heath Low Level|1.5 km away
- Heath High Level|1.6 km away
- Ty Glas|1.9 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.
