i have a nomad base, where do i list it?

hi. i've been hosting for a while, and have what can be referred to as a nomad base. i hosted several people involved in this project, and i think i get it (as far as i could read). so where do i list my base? i'm currently hosting people that stayed at casa robino.

our place is a squat/social center. 4 floors, about 1.6 hectares of area to work on. our website is http://www.spcc.pt.to

so how do i do this?