The average house price on Knowles House Avenue, St Helens is £82,800. Prices range from £33,000 to £150,000.
There are 32 properties on Knowles House Avenue, St Helens.
Average house prices on Knowles House Avenue, St Helens have risen by 155.8% from £43,000 in 1996 to £110,000 in 2025.
Knowles House Avenue, St Helens is in the WA10 postcode district.