It was not possible to make the house completely in Ymap,
because some objects disappear, and the house itself then disappears,
then appears right before our eyes, it's a shame, I do not know how to fix it. 

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ABSOLUTELY!:
Increased Props [Add-on]: https://ru.gta5-mods.com/tools/increased-props-add-on
Map Builder 1.07: https://ru.gta5-mods.com/tools/map-builder
Map Editor.
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Installation:
The folder has a home in both YMAP and MapEditor. ((YMAP DOESN'T WORK VERY WELL FOR ME, SO I ADVISE YOU TO USE MAP EDITOR!)
1) File from the "Grass" folder: GrassVlapSsHouse.ymap: \mods\update\x64\dlcpacks\custom_maps\dlc.rpf\x64\levels\gta5\_citye\maps\custom_maps.rpf\
2)
House YMAP:\mods\update\x64\dlcpacks\custom_maps\dlc.rpf\x64\levels\gta5\_citye\maps\custom_maps.rpf\  (I don't recommend it, but you can try)
House MapEditor: Put it in the root folder of the game 