You can use the 4-apartment residence plan by downloading the DWG file. There are 4 apartments on each floor and there are stairs and elevators.
You can download the Residence Plan Drawing Dwg file from this page and use it in your autocad projects. All users can share and download files on Arkipedia. You need to wait for a while to download the file. If the file is not free, you can support it by checking out the subscription plans.