Our Data Sources
30, Mostyn Square, Cardiff has no records in the Land Registry and a single entry in the EPC database dated February 2019.
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.
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 30, Mostyn Square, Cardiff, we estimate a market value of £414,769 and a rental value of £1,906 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £367,367 and £1,689 per month respectively.
Energy Efficiency
30, Mostyn Square, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 06 Feb 2019.
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
Since 2019 104 properties similar to 30, 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 26th March 2026, was 13, Watkins Square, Cardiff, CF14 4NH, a freehold house which sold for £375,000.
Read more about house prices in CF14.
- Sold Mar 2026£375,000 | 4 Bed House13, Watkins Square, Cardiff, CF14 4NH13, Watkins Square, Cardiff, CF14 4NH
- Sold Dec 2025£390,000 | 4 Bed House35, Mostyn Square, Cardiff, CF14 5FE35, Mostyn Square, Cardiff, CF14 5FE
- Sold Nov 2025£335,000 | 4 Bed House205, Tatham Road, Cardiff, CF14 5FF205, Tatham Road, Cardiff, CF14 5FF
- Sold Nov 2025£338,000 | 4 Bed House3, Mostyn Square, Cardiff, CF14 5FE3, Mostyn Square, Cardiff, CF14 5FE
- Sold Dec 2024£340,000 | 4 Bed House8, Tasker Square, Cardiff, CF14 5ET8, Tasker Square, Cardiff, CF14 5ET
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 £347,030, ranging from £198,512 to £399,782.
- 28 Mostyn Square
4 Bed House | 5 m | Est. Value: £395,018
- 32 Mostyn Square
4 Bed House | 8 m | Est. Value: £393,560
- 26 Mostyn Square
4 Bed House | 11 m | Est. Value: £396,471
- 34 Mostyn Square
4 Bed House | 14 m | Est. Value: £392,421
- 36 Mostyn Square
4 Bed House | 20 m | Est. Value: £392,421
Location Comparison
Of the 41 addresses on Mostyn Square, Llanishen, Cardiff, CF14, 30, Mostyn Square, Cardiff comes out as the 6th largest and the 11th most expensive in our analysis of the public data.
It is also £23k more expensive than the average property across the CF14 district.
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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.
