Our Data Sources
18 St. Stephens Mansions, Cardiff has 51 entries in the Land Registry, most recently in March 2016 and a single entry in the EPC database dated May 2023.
We combine this information with that 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
In very good condition, we estimate 18 St. Stephens Mansions, Cardiff would be worth £169,823, with a potential rental value of £1,167 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £150,415, with a rental value of £1,034 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
18 St. Stephens Mansions, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 18 May 2023.
The property is not connected to mains gas and has fully double glazed windows. It is heated using room heaters (electric).
Sold Prices
18 St. Stephens Mansions, Cardiff last changed hands on 18th March 2016, selling for £170,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold 5 times since 1995.
The market for similar properties has risen by 6.6% since March 2016.
- Sold Mar 2016£170,000
- Sold Sep 2013£151,000
- Sold Aug 2007£171,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 291 sales of comparable properties within 330 metres of 18 St. Stephens Mansions, Cardiff since 2019.
Most recently, 31, Reresby Court, Cardiff, CF10 5NR, a leasehold flat, sold at £156,000 on the 28th April 2026.
Read more about house prices in CF10.
- Sold Apr 2026£156,000 | 2 Bed Flat31, Reresby Court, Cardiff, CF10 5NR31, Reresby Court, Cardiff, CF10 5NR
- Sold Apr 2026£93,000 | 2 Bed Flat40, Reresby Court, Cardiff, CF10 5NR40, Reresby Court, Cardiff, CF10 5NR
- Sold Dec 2025£130,000 | 2 Bed Flat48, Lynton Court, Cardiff, CF10 5NF48, Lynton Court, Cardiff, CF10 5NF
- Sold Aug 2025£165,000 | 2 Bed Flat18, Ezel Court, Cardiff, CF10 5NS18, Ezel Court, Cardiff, CF10 5NS
- Sold Jun 2025£138,000 | 2 Bed Flat22, Judkin Court, Cardiff, CF10 5AU22, Judkin Court, Cardiff, CF10 5AU
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
Our analysis of the public data ranks 18 St. Stephens Mansions, Cardiff as the 133rd largest and the 154th most expensive of the 222 addresses on Mount Stuart Square, Cardiff, CF10.
Against the CF10 postcode district average, it is £29k less expensive than the typical property.
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
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
