House Price Change 10 Years (Nominal) in Greece compared to Europe

Greece -31.15%
Cyprus -21.38%
Spain -12.08%
Italy -5.90%
Montenegro n.a.*
Finland n.a.*
Portugal n.a.*
North Macedonia 0.53%
Romania 13.73%
Croatia 14.44%
Switzerland 14.96%
France 16.98%
Slovenia 18.17%
Netherlands 25.18%
Denmark 25.54%
Ireland 26.43%
Bulgaria 26.48%
Poland 28.95%
Lithuania 29.57%
Belgium 32.00%
Slovak Rep. 35.98%
Sweden 54.18%
Norway 56.85%
Czech Rep. 57.77%
Germany 60.53%
Latvia 67.01%
Malta 74.97%
Luxembourg 75.88%
Austria 79.75%
Hungary 90.98%
Estonia 115.73%
Iceland 118.68%
Turkey 199.68%

Greece has an index of prices of new and existing dwellings both in Athens and in urban areas outside Athens, generated by the Bank of Greece. There seems to be no private house price data provider. The National Statistical Service of Greece also has economic data.