Our Data Sources
29, Heol Cefn Onn, Cardiff has a single entry in the Land Registry from April 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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 29, Heol Cefn Onn, Cardiff is in very good condition we estimate a sale value of £615,332 and a rental value of £2,065 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £545,009 and a rental value of £1,829 per month.
Plot Size
According to data from HM Land Registry, 29, Heol Cefn Onn, Cardiff sits on a plot of 476 m2.
We have plot size data on 30 out of 30 other houses in the postcode and 29, Heol Cefn Onn, Cardiff sits on the 17th largest plot.
Sold Prices
According to HM Land Registry, 29, Heol Cefn Onn, Cardiff was last sold on 30th April 2007 for £370,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since April 2007, the market for similar properties has risen by 33.8%.
- Sold Apr 2007£370,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 151 sales of properties similar to 29, Heol Cefn Onn, Cardiff within a radius of 790 metres since 2016.
The most recent example is 43, Ridgeway, Cardiff, CF14 0RS, a freehold house which sold for £550,000 on the 20th February 2026.
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£620,000 | 4 Bed House2, Ridgeway, Cardiff, CF14 0RR2, Ridgeway, Cardiff, CF14 0RR
- 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
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 £631,487, ranging from £484,746 to £837,937.
- 31 Heol Cefn Onn
4 Bed House | 19 m | Est. Value: £570,835
- 11 Heol St. Denys
5 Bed House | 31 m | Est. Value: £837,937
- 33 Heol Cefn Onn
5 Bed House | 33 m | Est. Value: £688,374
- 9 Heol St. Denys
5 Bed House | 38 m | Est. Value: £666,022
- 1 Heol St. Denys
5 Bed House | 39 m | Est. Value: £640,218
Location Comparison
Heol Cefn Onn, Lisvane, Cardiff, CF14 has a total of 46 addresses. According to our analysis of all the public data, 29, Heol Cefn Onn, Cardiff is the 30th largest and the 18th most expensive property on the street.
When compared to the postcode district it is £214k more expensive than the average property in CF14.
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
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












