Our Data Sources
40, Topaz Street, Cardiff has 2 entries in the Land Registry, most recently in March 2014 and a single entry in the EPC database dated September 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 40, Topaz Street, Cardiff, we estimate a market value of £266,907 and a rental value of £1,512 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £236,403 and £1,339 per month respectively.
Plot Size
HM Land Registry records the plot of land for 40, Topaz Street, Cardiff as measuring 133 m2.
That makes it the 12th largest plot in the postcode, where 28 of the 29 other houses have recorded plot data.
Energy Efficiency
40, Topaz Street, Cardiff has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Sep 2022.
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 40, Topaz Street, Cardiff completed on 28th March 2014 at £137,000 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 104.8% over the period since March 2014.
- Sold Mar 2014£137,000
- Sold Apr 2010£134,000
Similar Properties Sold Nearby
Since 2019 87 properties similar to 40, Topaz Street, Cardiff have sold within a radius of 340 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th March 2026, was 50, Sapphire Street, Cardiff, CF24 1PZ, a freehold house which sold for £255,000.
Read more about house prices in CF24.
- Sold Mar 2026£255,000 | 4 Bed House50, Sapphire Street, Cardiff, CF24 1PZ50, Sapphire Street, Cardiff, CF24 1PZ
- Sold Nov 2025£280,000 | 4 Bed House75, Railway Street, Cardiff, CF24 2DF75, Railway Street, Cardiff, CF24 2DF
- Sold Sep 2025£190,000 | 4 Bed House79, Pearl Street, Cardiff, CF24 1PJ79, Pearl Street, Cardiff, CF24 1PJ
- Sold Mar 2025£193,000 | 4 Bed House153, Railway Street, Cardiff, CF24 2NA153, Railway Street, Cardiff, CF24 2NA
- Sold Mar 2025£187,000 | 4 Bed House173, Railway Street, Cardiff, CF24 2NB173, Railway Street, Cardiff, CF24 2NB
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 £216,390, ranging from £119,133 to £243,535.
- Ground Floor Flat
2 Bed Flat | 6 m | Est. Value: £119,133
- 42 Topaz Street
3 Bed House | 6 m | Est. Value: £216,990
- 44 Topaz Street
4 Bed House | 11 m | Est. Value: £227,072
- 36 Topaz Street
4 Bed House | 11 m | Est. Value: £243,535
- 34 Topaz Street
3 Bed House | 16 m | Est. Value: £216,990
Location Comparison
Of the 73 addresses on Topaz Street, Cardiff, CF24, 40, Topaz Street, Cardiff comes out as the largest and the most expensive in our analysis of the public data.
It is also £28k more expensive than the average property across the CF24 district.
More reading links
Schools Nearby
Public Transport Nearby
- Cardiff Queen Street|1.1 km away
- Cathays|1.6 km away
- Cardiff Central|1.9 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.












