Our Data Sources
7, Heol Cefn Onn, Cardiff has 3 entries in the Land Registry, most recently in June 2025 and a single entry in the EPC database dated February 2023.
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 7, Heol Cefn Onn, Cardiff, we estimate a market value of £798,194 and a rental value of £2,414 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £706,972 and £2,138 per month respectively.
Plot Size
HM Land Registry records the plot of land for 7, Heol Cefn Onn, Cardiff as measuring 462 m2.
That makes it the 18th largest plot in the postcode, where all 30 other houses have recorded plot data.
Energy Efficiency
7, Heol Cefn Onn, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 Feb 2023.
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 7, Heol Cefn Onn, Cardiff completed on 6th June 2025 at £774,000 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 17.4% over the period since June 2025.
- Sold Jun 2025£774,000
- Sold Jul 2023£760,000
- Sold Oct 2011£320,000
Similar Properties Sold Nearby
Since 2011 100 properties similar to 7, Heol Cefn Onn, Cardiff have sold within a radius of 830 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th March 2026, was 46, Llwyn Y Pia Road, Cardiff, CF14 0SZ, a freehold house which sold for £695,000.
Read more about house prices in CF14.
- Sold Mar 2026£695,000 | 5 Bed House46, Llwyn Y Pia Road, Cardiff, CF14 0SZ46, Llwyn Y Pia Road, Cardiff, CF14 0SZ
- Sold Aug 2025£775,000 | 5 Bed House85D, Mill Road, Cardiff, CF14 0UG85D, Mill Road, Cardiff, CF14 0UG
- Sold Apr 2025£637,500 | 5 Bed House9, Heol St. Denys, Cardiff, CF14 0RU9, Heol St. Denys, Cardiff, CF14 0RU
- Sold Mar 2025£647,500 | 5 Bed House51, Cherry Orchard Road, Cardiff, CF14 0UD51, Cherry Orchard Road, Cardiff, CF14 0UD
- Sold Nov 2024£750,000 | 5 Bed House54, Llwyn Y Pia Road, Cardiff, CF14 0SZ54, Llwyn Y Pia Road, Cardiff, CF14 0SZ
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 £713,239, ranging from £550,188 to £1,087,890.
- 9 Heol Cefn Onn
5 Bed House | 13 m | Est. Value: £721,494
- 11 Heol Cefn Onn
4 Bed House | 27 m | Est. Value: £670,287
- 9 The Paddock
5 Bed House | 37 m | Est. Value: £774,210
- 14 Heol Cefn Onn
4 Bed House | 48 m | Est. Value: £650,937
- 31 Cherry Orchard Road
5 Bed House | 54 m | Est. Value: £689,789
Location Comparison
Of the 46 addresses on Heol Cefn Onn, Lisvane, Cardiff, CF14, 7, Heol Cefn Onn, Cardiff comes out as the 3rd largest and the most expensive in our analysis of the public data.
It is also £388k 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.
