Seeki.eu lists 1,500+ properties for sale and 300+ to rent in Sintra.
The median asking price is €349,111, or €3,511 per m² on a typical 100 m², across sale listings that publish both a price and a floor area.
On the rental side, the median asking rent for an apartment is €1,250 a month, across apartment rentals that publish both a price and a floor area.