Espoo’s comprehensive 3D city model is freely usable through a WFS interface as open data.
More info about interface services.
Instructions for FME Desktop users are on available.
Instruction on Finnish
Sample workbench: EspooWFSCityGML_FME_Workbench.zip
Sample requestlink for browsers to get GML directly from WFS interface.
The index of CityGML building models integrity have been published on Map Service.