Our Data Sources
23 St. Stephens Mansions, Cardiff has no recent1 records in the Land Registry and a single entry in the EPC database dated January 2023.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 23 St. Stephens Mansions, Cardiff is in very good condition we estimate a sale value of £186,385 and a rental value of £1,244 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £165,084 and a rental value of £1,102 per month.
Energy Efficiency
23 St. Stephens Mansions, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 11 Jan 2023.
The property is not connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).
Sold Prices
According to HM Land Registry, 23 St. Stephens Mansions, Cardiff was last sold on 1st August 2003 for £165,000 and was recorded as a leasehold flat.
The property has only had this single sale since 1995.
- Sold Aug 2003£165,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 286 sales of properties similar to 23 St. Stephens Mansions, Cardiff within a radius of 330 metres since 2019.
The most recent example is 32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ, a leasehold flat which sold for £200,000 on the 29th May 2026.
Read more about house prices in CF10.
- Sold May 2026£200,000 | 2 Bed Flat32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ32 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
- Sold May 2026£162,000 | 2 Bed Flat36 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ36 St. Stephens Mansions, Mount Stuart Square, Cardiff, CF10 5LQ
- Sold Apr 2026£185,000 | 2 Bed FlatVienna House 43, Penstone Court, Cardiff, CF10 5NLVienna House 43, Penstone Court, Cardiff, CF10 5NL
- Sold Feb 2026£183,500 | 2 Bed Flat53, Taliesin Court, Cardiff, CF10 5NH53, Taliesin Court, Cardiff, CF10 5NH
- Sold Jan 2026£155,000 | 2 Bed Flat74, Penstone Court, Cardiff, CF10 5NN74, Penstone Court, Cardiff, CF10 5NN
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 £174,530, ranging from £150,652 to £197,402.
- 52 St. Stephens Mansions Mount Stuart Square
2 Bed Flat | 0 m | Est. Value: £181,757
- 38 St. Stephens Mansions Mount Stuart Square
2 Bed Flat | 0 m | Est. Value: £181,757
- 8 St. Stephens Mansions Mount Stuart Square
2 Bed Flat | 0 m | Est. Value: £150,652
- 47 St. Stephens Mansions Mount Stuart Square
2 Bed Flat | 0 m | Est. Value: £158,137
- 4 St. Stephens Mansions Mount Stuart Square
2 Bed Flat | 0 m | Est. Value: £158,137
Location Comparison
Mount Stuart Square, Cardiff, CF10 has a total of 222 addresses. According to our analysis of all the public data, 23 St. Stephens Mansions, Cardiff is the 69th largest and the 55th most expensive property on the street.
When compared to the postcode district it is £13k less expensive than the average property in CF10.
More reading links
Schools Nearby
Public Transport Nearby
- Cardiff Bay|200 m away
- Cardiff Central|1.3 km away
- Grangetown (Cardiff)|1.4 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












