Our Data Sources
21, Greenfield Avenue, Cardiff has 21 entries in the Land Registry , most recently in February 2026 and a single entry in the EPC database dated April 2016.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 21, Greenfield Avenue, Cardiff would be worth £562,040, with a potential rental value of £3,033 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £497,807, with a rental value of £2,687 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Greenfield Avenue, Cardiff occupies a 154 m2 plot as recorded by HM Land Registry.
All 23 other houses in this postcode have recorded plot sizes, and this one ranks as the 18th largest.
Energy Efficiency
21, Greenfield Avenue, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 28 Apr 2016.
The property is connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
21, Greenfield Avenue, Cardiff last changed hands on 20th February 2026, selling for £530,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 29.6% since February 2026.
- Sold Feb 2026£530,000
- Sold Jun 1997£105,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 380 metres of 21, Greenfield Avenue, Cardiff across the last 2 years.
Most recently, 51, Romilly Crescent, Cardiff, CF11 9NP, a freehold house, sold at £530,000 on the 2nd October 2025.
Read more about house prices in CF11.
- Sold Oct 2025£530,000 | 5 Bed House51, Romilly Crescent, Cardiff, CF11 9NP51, Romilly Crescent, Cardiff, CF11 9NP
- Sold Oct 2023£550,000 | 5 Bed House95, Romilly Road, Cardiff, CF5 1FN95, Romilly Road, Cardiff, CF5 1FN
- Sold Oct 2021£495,000 | 5 Bed House4B, Romilly Road, Cardiff, CF5 1FH4B, Romilly Road, Cardiff, CF5 1FH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 21, Greenfield Avenue, Cardiff as the largest and the most expensive of the 45 addresses on Greenfield Avenue, Canton, Cardiff, CF11.
Against the CF11 postcode district average, it is £286k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- 1.1kmNinian Park
- 1.6kmWaun-Gron Park
- 2.0kmCathays
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.
