Our Data Sources
31, Crystal Avenue, Cardiff has 31 entries in the Land Registry, most recently in November 2024 and a single entry in the EPC database dated April 2024.
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
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 31, Crystal Avenue, Cardiff, we estimate a market value of £419,936 and a rental value of £1,647 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £371,943 and £1,459 per month respectively.
Plot Size
HM Land Registry records the plot of land for 31, Crystal Avenue, Cardiff as measuring 230 m2.
That makes it the 21st largest plot in the postcode, where all 23 other houses have recorded plot data.
Energy Efficiency
31, Crystal Avenue, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 08 Apr 2024.
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 31, Crystal Avenue, Cardiff completed on 29th November 2024 at £398,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have dropped by 19.3% over the period since November 2024.
- Sold Nov 2024£398,000
- Sold Feb 2013£243,500
- Sold Oct 2006£220,000
Similar Properties Sold Nearby
Since 2012 156 properties similar to 31, Crystal Avenue, Cardiff have sold within a radius of 670 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th March 2026, was 6, Heath Halt Road, Cardiff, CF23 5QF, a freehold house which sold for £400,000.
Read more about house prices in CF23.
- Sold Mar 2026£400,000 | 4 Bed House6, Heath Halt Road, Cardiff, CF23 5QF6, Heath Halt Road, Cardiff, CF23 5QF
- Sold Oct 2025£465,000 | 3 Bed House23, St. Malo Road, Cardiff, CF14 4HL23, St. Malo Road, Cardiff, CF14 4HL
- Sold Jul 2025£400,000 | 3 Bed House32, Crystal Avenue, Cardiff, CF23 5QL32, Crystal Avenue, Cardiff, CF23 5QL
- Sold May 2025£400,000 | 3 Bed House88, Heath Park Avenue, Cardiff, CF14 3RJ88, Heath Park Avenue, Cardiff, CF14 3RJ
- Sold Oct 2024£392,700 | 3 Bed House14, Crystal Avenue, Cardiff, CF23 5QJ14, Crystal Avenue, Cardiff, CF23 5QJ
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 £422,267, ranging from £354,926 to £490,203.
- 33 Crystal Avenue
3 Bed House | 8 m | Est. Value: £404,301
- 35 Crystal Avenue
4 Bed House | 14 m | Est. Value: £486,405
- 27 Crystal Avenue
3 Bed House | 16 m | Est. Value: £382,157
- 37 Crystal Avenue
4 Bed House | 25 m | Est. Value: £441,508
- 20 Crystal Avenue
4 Bed House | 31 m | Est. Value: £490,203
Location Comparison
Of the 45 addresses on Crystal Avenue, Cardiff, CF23, 31, Crystal Avenue, Cardiff comes out as the 35th largest and the 33rd most expensive in our analysis of the public data.
It is also £36k more expensive than the average property across the CF23 district.
More reading links
Schools Nearby
Public Transport Nearby
- Heath High Level|100 m away
- Heath Low Level|200 m away
- Ty Glas|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.












