The average house price on St John Avenue, Cardiff is £354,526. Prices range from £195,996 to £509,995.
There are 48 properties on St John Avenue, Cardiff.
Average house prices on St John Avenue, Cardiff have fallen by 12.8% from £366,995 in 2019 to £319,995 in 2025.
St John Avenue, Cardiff is in the CF15 postcode district.
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