Renewables outside LPB & owned by Project - Campus or no Campus?

Hi, We have a new small building on a large industrial site in Switzerland (same owner for the entire site) that we want to certify with LEED Gold (only the new small building) and we have no space within the LEED Project Boundary for incorportaing renewables. We can definitely install a PV array on the building next to it and used it for our project (while retaining the RECs / not selling them on). If the Project Owner owns the PV array (not a third party where I would do a lease agreement for 10 years) can I count these points without having to consider a LEED Campus approach for it and also for all other Campus-Approach eligible credits (like Site selection, outdoor water use etc.)? We do not have the budget to evaluate the Campus wide credits and cannot really go down this route... Thanks in advance for your help!