The average house price on Carmarthen Avenue, Portsmouth is £324,799. Prices range from £117,000 to £910,000.
There are 82 properties on Carmarthen Avenue, Portsmouth.
Average house prices on Carmarthen Avenue, Portsmouth have risen by 272.5% from £117,000 in 1995 to £435,833 in 2025.
Carmarthen Avenue, Portsmouth is in the PO6 postcode district.
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