Our Data Sources
23, Mostyn Square, Cardiff has a single entry in the Land Registry from December 2008 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the 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 23, Mostyn Square, Cardiff, we estimate a market value of £615,983 and a rental value of £1,926 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £545,585 and £1,706 per month respectively.
Plot Size
HM Land Registry records the plot of land for 23, Mostyn Square, Cardiff as measuring 240 m2.
That makes it the 5th largest plot in the postcode, where 30 of the 40 other houses have recorded plot data.
Sold Prices
The most recent sale of 23, Mostyn Square, Cardiff completed on 23rd December 2008 at £272,995 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 121.0% over the period since December 2008.
- Sold Dec 2008£272,995
Similar Properties Sold Nearby
Since 2008 41 properties similar to 23, Mostyn Square, Cardiff have sold within a radius of 600 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 22nd December 2025, was 74, Beulah Road, Cardiff, CF14 6LY, a freehold house which sold for £615,000.
Read more about house prices in CF14.
- Sold Dec 2025£615,000 | 4 Bed House74, Beulah Road, Cardiff, CF14 6LY74, Beulah Road, Cardiff, CF14 6LY
- Sold Dec 2025£575,000 | 4 Bed House23, Heol Mynydd Bychan, Cardiff, CF14 4NL23, Heol Mynydd Bychan, Cardiff, CF14 4NL
- Sold Nov 2025£613,000 | 4 Bed House9, St. Asaph Close, Cardiff, CF14 4LD9, St. Asaph Close, Cardiff, CF14 4LD
- Sold Mar 2025£525,000 | 4 Bed House21, Heol Mynydd Bychan, Cardiff, CF14 4NL21, Heol Mynydd Bychan, Cardiff, CF14 4NL
- Sold May 2024£475,000 | 4 Bed House112, Ty Glas Road, Cardiff, CF14 5EG112, Ty Glas Road, Cardiff, CF14 5EG
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 £289,591, ranging from £147,369 to £634,469.
- 21 Mostyn Square
3 Bed House | 12 m | Est. Value: £349,433
- 19 Mostyn Square
3 Bed House | 18 m | Est. Value: £347,771
- 8 Tatham Road
4 Bed House | 20 m | Est. Value: £389,042
- 10 Tatham Road
4 Bed House | 23 m | Est. Value: £431,384
- 65 Tatham Road
2 Bed Flat | 26 m | Est. Value: £182,021
Location Comparison
Of the 41 addresses on Mostyn Square, Llanishen, Cardiff, CF14, 23, Mostyn Square, Cardiff comes out as the 3rd largest and the 3rd most expensive in our analysis of the public data.
It is also £215k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Ty Glas|300 m away
- Birchgrove|400 m away
- Rhiwbina|1.1 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
