Content in the UCL Wiki is organised into spaces.
Every UCL member of staff has a personal Wiki space. Once logged in to the Wiki, if you click on your profile in the top right of the screen you will see a link to your "Personal space"
Please note that, for staff, UCL also offers a Web site service, and a Sharepoint service which may be more suitable for your needs.
Once you have considered these other options, and decided that a Wiki is the right tool for your needs, you will need to read through the Wiki terms and conditions page.