Hi Lilly, I’m afraid I don’t know too much about the real estate market, but while cost of living here is still very good real estate is often comparable to the rest of Europe. It may be due to red tape – so places with approvals to build/live are worth more along with foreign investment driving up prices. I’ve heard the Silver Coast is more affordable – north of Lisbon, south of Aveiro – and may have train/bus connections. Inland villages will be the cheapest. Most areas seem to have bus connections but I wouldn’t trust them to be frequent or reliable. Sorry I can’t be more help!