https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67047#M8124 Thank you. Just tried it and it appears to work.. for now at least. Sun, 06 Apr 2008 16:09:05 GMT Anonymous 2008-04-06T16:09:05Z https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67045#M8122 <DIV class="actalk-migrated-content">Hi, how could i draw a structure that has a basement. Obviously, the ground floor isn't the datum level; and the building has to start from hte basement concrete slab up with teh remaning floors where the construction is of timber floors.</DIV> Fri, 03 May 2024 12:08:53 GMT https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67045#M8122 Anonymous 2024-05-03T12:08:53Z https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67046#M8123 If I understand your question correctly open your story settings select your base story (different in the UK than here I think) and add a story below. Your base story keeps its datum and the lower story adjusts accordingly. Sun, 06 Apr 2008 15:40:29 GMT https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67046#M8123 Brad Elliott 2008-04-06T15:40:29Z https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67047#M8124 Thank you. Just tried it and it appears to work.. for now at least. Sun, 06 Apr 2008 16:09:05 GMT https://community.graphisoft.com/t5/Installation-update/Below-Ground/m-p/67047#M8124 Anonymous 2008-04-06T16:09:05Z