Our Data Sources
30, St. John Avenue, Cardiff has 2 entries in the Land Registry , most recently in May 2026 and a single entry in the EPC database dated June 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 30, St. John Avenue, Cardiff would be worth £470,665, with a potential rental value of £2,165 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £416,874, with a rental value of £1,917 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
30, St. John Avenue, Cardiff occupies a 247 m2 plot as recorded by HM Land Registry.
Of the 50 other houses in this postcode, 15 have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
30, St. John Avenue, Cardiff has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 22 Jun 2021.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
30, St. John Avenue, Cardiff last changed hands on 1st May 2026, selling for £485,000. 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 risen by 0.2% since May 2026.
- Sold May 2026£485,000
- Sold Nov 2021£379,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 302 sales of comparable properties within 870 metres of 30, St. John Avenue, Cardiff across the last 2 years.
Most recently, 32, St. John Avenue, Cardiff, CF15 8GS, a freehold house, sold at £379,995 on the 30th September 2021.
Read more about house prices in CF15.
- Sold Sep 2021£379,995 | 4 Bed House32, St. John Avenue, Cardiff, CF15 8GS32, St. John Avenue, Cardiff, CF15 8GS
- Sold Aug 2021£379,995 | 4 Bed House42, St. John Avenue, Cardiff, CF15 8GS42, St. John Avenue, Cardiff, CF15 8GS
- Sold Aug 2021£379,995 | 4 Bed House44, St. John Avenue, Cardiff, CF15 8GS44, St. John Avenue, Cardiff, CF15 8GS
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 30, St. John Avenue, Cardiff as the 6th largest and the 8th most expensive of the 50 addresses on St. John Avenue, Radyr, Cardiff, CF15.
Against the CF15 postcode district average, it is £55k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Radyr|900 m away
- Danescourt|1.5 km away
- Llandaf|1.6 km away
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
