Spiritus loci (Latin, “spirit of the place”) is a term of ancient Pagan traditions. Its meaning is the spiritual being inhabiting a particular geographical location.
Some modern writers interpreted this as the “place where a spirit manifests,” which is locus spiritus.
There is also a book with the name Spiritus Loci from Bert Daelemans. He is an architech and a theologian.
It is a method which mix architecture and theology. It is based on contemporary buildings .
Greer, John Michael. The New Encyclopedia of the Occult. St. Paul, MN, Llewellyn Worldwide. p. 449-450