Our Data Sources
29, Mostyn Square, Cardiff has 2 entries in the Land Registry, most recently in January 2017 and a single entry in the EPC database dated June 2019.
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.
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 29, Mostyn Square, Cardiff, we estimate a market value of £374,590 and a rental value of £1,875 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £331,780 and £1,661 per month respectively.
Plot Size
HM Land Registry records the plot of land for 29, Mostyn Square, Cardiff as measuring 153 m2.
That makes it the 17th largest plot in the postcode, where 30 of the 40 other houses have recorded plot data.
Energy Efficiency
29, Mostyn Square, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 27 Jun 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 29, Mostyn Square, Cardiff completed on 27th January 2017 at £247,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 65.2% over the period since January 2017.
- Sold Jan 2017£247,000
- Sold Dec 2008£195,000
Similar Properties Sold Nearby
Since 2015 228 properties similar to 29, 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£338,000 | 4 Bed House3, Mostyn Square, Cardiff, CF14 5FE3, 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£365,000 | 3 Bed House41, Mostyn Square, Cardiff, CF14 5FE41, Mostyn Square, Cardiff, CF14 5FE
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 £356,214, ranging from £147,369 to £634,469.
- 31 Mostyn Square
2 Bed House | 5 m | Est. Value: £198,512
- 27 Mostyn Square
4 Bed House | 10 m | Est. Value: £563,958
- 33 Mostyn Square
3 Bed House | 10 m | Est. Value: £341,366
- 35 Mostyn Square
4 Bed House | 15 m | Est. Value: £375,616
- 25 Mostyn Square
2 Bed Flat | 21 m | Est. Value: £147,369
Location Comparison
Of the 41 addresses on Mostyn Square, Llanishen, Cardiff, CF14, 29, Mostyn Square, Cardiff comes out as the 22nd largest and the 24th most expensive in our analysis of the public data.
It is also £15k less 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.












