
This is compatible collision file if You using Designer Penthouse: Remake from @BigShaqNOKetchup and My mod in same time.
[https://www.gta5-mods.com/maps/mlo-designer-penthouse-remake-add-on-sp]

- If only use MLO:

drop file here, from the MLO only folder:

 ..dp_remake/dlc.rpf/x64/levels/gta5/dp_remake_meta.rpf/

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- If using @meimeiriver script to: 
[https://www.gta5-mods.com/scripts/designerapartment]

drop file here, from the MLO and script folder:

 ..dlc_lobby/dlc.rpf/x64/levels/gta5/lobby_override.rpf/