This most famous of all Egyptian garden plans no longer exists (it was on the roof of a chapel in the Western Valley of the Kings).
It is likely that Sennefer was the garden manager, rather than its owner, and that the garden was located somewhere within the Domain of Amun.
Without a shred of supporting evidence, I guess it was beside the processional avenue of sphinxs between the Temple of Karnak and the Temple of Luxor. A possible site is marked by the number 20 on the key to photographs. and the recommended site is shown on the photograph below the plan (right). Whether or not this is correct, there is an excellent place in this area where the garden could be re-created. It would not be a particularly expensive project and it could:
The project could be funded in several ways
See also: the Garden Finder entry on Sennufer's Garden. with a link to Marie-Luise Gothein's analysis of the garden plan in her History of Garden Art..
Plan of Sennufer's Garden
Possible site in Luxor for a reconstruction of
Sennufer's garden. See number 20 on the key to
A view in the Western Valley of the Kings