Our Data Sources
31, Heol Cefn Onn, Cardiff has a single entry in the Land Registry from August 2007 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 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 31, Heol Cefn Onn, Cardiff, we estimate a market value of £599,377 and a rental value of £2,049 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £530,877 and £1,815 per month respectively.
Plot Size
HM Land Registry records the plot of land for 31, Heol Cefn Onn, Cardiff as measuring 489 m2.
That makes it the 15th largest plot in the postcode, where all 30 other houses have recorded plot data.
Sold Prices
The most recent sale of 31, Heol Cefn Onn, Cardiff completed on 30th August 2007 at £358,000 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 31.7% over the period since August 2007.
- Sold Aug 2007£358,000
Similar Properties Sold Nearby
Since 2016 129 properties similar to 31, Heol Cefn Onn, Cardiff have sold within a radius of 790 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 20th February 2026, was 43, Ridgeway, Cardiff, CF14 0RS, a freehold house which sold for £550,000.
Read more about house prices in CF14.
- Sold Feb 2026£550,000 | 4 Bed House43, Ridgeway, Cardiff, CF14 0RS43, Ridgeway, Cardiff, CF14 0RS
- Sold Nov 2025£510,000 | 4 Bed House116, Mill Road, Cardiff, CF14 0UG116, Mill Road, Cardiff, CF14 0UG
- Sold Jul 2025£560,000 | 4 Bed House9, Cherry Orchard Road, Cardiff, CF14 0UD9, Cherry Orchard Road, Cardiff, CF14 0UD
- Sold Jul 2024£525,000 | 4 Bed House14, Holly Grove, Cardiff, CF14 0UJ14, Holly Grove, Cardiff, CF14 0UJ
- Sold Jul 2024£545,000 | 4 Bed House3, Holly Grove, Cardiff, CF14 0UJ3, Holly Grove, Cardiff, CF14 0UJ
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 £605,519, ranging from £484,746 to £837,937.
- 33 Heol Cefn Onn
5 Bed House | 14 m | Est. Value: £688,374
- 29 Heol Cefn Onn
4 Bed House | 19 m | Est. Value: £586,031
- 1 Heol St. Denys
5 Bed House | 26 m | Est. Value: £640,218
- 3 Heol St. Denys
3 Bed House | 36 m | Est. Value: £490,183
- 34 Heol Cefn Onn
3 Bed House | 40 m | Est. Value: £484,746
Location Comparison
Of the 46 addresses on Heol Cefn Onn, Lisvane, Cardiff, CF14, 31, Heol Cefn Onn, Cardiff comes out as the 33rd largest and the 20th most expensive in our analysis of the public data.
It is also £199k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
- Lisvane & Thornhill|400 m away
- Llanishen|1.2 km away
- Ty Glas|2.6 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
