dnd 5e – Where is Gralhund Villa located within Waterdeep?

In Waterdeep: Dragon Heist, a significant portion of one of the chapters takes place in “Gralhund Villa”.

There are locations given for several of the noble Houses in the first chapter, but I can’t find anything giving even an approximate location for Gralhund Villa. I’ve marked this question as 5e, but will accept information from any edition.

Where is Gralhund Villa located within Waterdeep?