Fistandia's Mansion is another location from the Candlekeep Mysteries 5E adventure that we've been steadily releases maps from for well over a year now. This permanent casting of Magnificent Mansion is secretly accessible through one of the rooms within Candlekeep proper and is the backdrop to the first chapter of the adventure.
What's available for download:

Enjoy! Find more of the maps for Candlekeep Mysteries by clicking the "candlekeep" filter at the bottom of this post.