Concept design developed with FreeCAD and rendered on Blender by FC user cad1234.
Is this inspired from the Republic_of_Rose_Island ? :) True story and a film about it recently aired in Netflix
@bitacovir has added it to https://wiki.osarch.org/index.php?title=AECO_Workflow_Examples#Lake_House.2C_concept_design_.282020.29
if anyone is interested in downloading the Blender file from my Dropbox, no need to register.
Just close the register box and then download.
Used Blender 292 with BlenderBim.
Any proposals for improvements very welcome!!
A few further infos see Freecad Forum.