Oeiras

Oeiras is a municipality in the district of Lisboa (sub-region: Grande Lisboa), covering 46 km² in 5 parishes. Only 27 % of it is forest land (woodland, scrub or natural pasture, according to the COS 2025 land-cover map): there, the strip around each house is 50 m wide.

The map finds 46 villages (groups of at least 10 buildings); the largest are Oeiras, Linda-a-Velha and Porto Salvo. 16 of them have forest land on more than half of the 100 m strip around them — among them Barcarena, Quinta de Nossa Senhora da Conceição and Gandarela.