公司大厦 meaning in English

company building
company mansion

My company large building wants to change a name , with the address , where should go to commonly is the branch dealt with ? where should inform of the branch
我公司大厦想改变名称，和地址，一般要去哪里部门办理？要通知哪里部门？
Do you agree that the buildings without owners corporations or are not served by property management companies should be mandated to undertake building inspection
你赞唔赞成对于?成立业主立案法团又?聘用物业管理公司大厦，进行强制定期验楼？
For the buildings without owners corporations or are not serviced by property management companies , do you agree that they should be mandated to engage property management companies
你赞唔赞成对于?成立业主立案法团又?聘用物业管理公司大厦，强制聘用物业管理公司？