moving to cascias (Cascais)

hi all,
We are planning the move to portugal with our two little ones (aged 3 and Protected content looks amazing but i am a little worried it is outwith our budget to buy a home there. we need 4 bedrooms and a garden can anyone give me a rough idea of prices? we both drive and are not fussed for sea views ect but feel that as we are moving abroad to get away from the scottish weather that a garden is essential as i would like to put a pool in and live the more outdoor life.