Our Data Sources
9, Heol Cefn Onn, Cardiff has no recent1 records in the Land Registry and a single entry in the EPC database dated November 2024.
We combine this information with public data 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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 9, Heol Cefn Onn, Cardiff would be worth £757,569, with a potential rental value of £2,291 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £670,989, with a rental value of £2,030 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
9, Heol Cefn Onn, Cardiff occupies a 489 m2 plot as recorded by HM Land Registry.
All 30 other houses in this postcode have recorded plot sizes, and this one ranks as the 16th largest.
Energy Efficiency
9, Heol Cefn Onn, Cardiff has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Nov 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
9, Heol Cefn Onn, Cardiff last changed hands on 28th August 1998, selling for £125,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
- Sold Aug 1998£125,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 127 sales of comparable properties within 820 metres of 9, Heol Cefn Onn, Cardiff since 2013.
Most recently, 85D, Mill Road, Cardiff, CF14 0UG, a freehold house, sold at £775,000 on the 8th August 2025.
Read more about house prices in CF14.
- Sold Aug 2025£775,000 | 5 Bed House85D, Mill Road, Cardiff, CF14 0UG85D, Mill Road, Cardiff, CF14 0UG
- Sold Jun 2025£774,000 | 5 Bed House7, Heol Cefn Onn, Cardiff, CF14 0TP7, Heol Cefn Onn, Cardiff, CF14 0TP
- 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 Oct 2024£625,000 | 5 Bed House35, Ridgeway, Cardiff, CF14 0RS35, Ridgeway, Cardiff, CF14 0RS
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 £680,498, ranging from £550,188 to £774,210.
- 7 Heol Cefn Onn
5 Bed House | 13 m | Est. Value: £760,185
- 11 Heol Cefn Onn
4 Bed House | 14 m | Est. Value: £670,287
- 9 The Paddock
5 Bed House | 37 m | Est. Value: £774,210
- 17 Heol Cefn Onn
4 Bed House | 42 m | Est. Value: £667,892
- 14 Heol Cefn Onn
4 Bed House | 43 m | Est. Value: £650,937
Location Comparison
Our analysis of the public data ranks 9, Heol Cefn Onn, Cardiff as the 10th largest and the 2nd most expensive of the 46 addresses on Heol Cefn Onn, Lisvane, Cardiff, CF14.
Against the CF14 postcode district average, it is £350k more expensive than the typical property.
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
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
