From here … https://wrath-of-the-righteous-59.obsidianportal.com/wikis/kenabres-locations … I zoomed in on Defender’s Heart, clearly noted in both before and after maps.
The faint pink line is my work. I then straightened it, mirrored and averaged the four sides and got this:
As a basic birds eye view of the building. I then did some research:
“The largest inn in Kenabres is Defender’s Heart-a stout stone structure … Built to last” … “Alert guards are posted at every third window in the large structure” … “The building is quite large, and the crusaders, merchants, mercenaries, and others who have gathered here number nearly 200. There are only a few rooms still unoccupied in the huge inn” … “The largest inn in Kenabres, this business caters to mercenary companies and crusaders coming to the city. Inside this squat stone structure are dozens of rooms for rent, hearty food, and a wide selection of refreshments”
I have an issue with their use of ‘squat’, as they also call “The Gray Garrison is so-called for its squat, plain gray stone facade.” but its dimensions are: 80ft long, 65 feet deep, and 30 feet tall is hardly ‘squat’.
In any case, I assumed ‘squat’ as a guiding term and while I haven’t worked out the rooms yet (the ‘nearly 200’ figure plus rooms enough for the party should give a good range), I figured that two stories tall (and perhaps more underground) would match that. Further, I made the four structures on each side a mini-tower to support the idea of this being a defendable location. My headcanon has it built during the 1st Crusade before Kenabres had considerably expanded, so it had to have its own solid defenses; I set the perimeter walls at 3 feet thick with the crenellations at 1 foot thick (and assumed the former was made from mostly rough hewn stone, while the latter is brick or smaller stone. I only put in two sets of doors (one set is visible here) as minimal entrances/exits would make the building more secure.
Windows are mentioned, but not of what kind, so I went with a wide arched window. The windows are 15 feet center on centre.
Another bit of headcanon is that the circular section of the roof is not a dome but a collection pit for rainwater. The rest of the roof slopes out to the walls, but the centre slopes down into a cistern that lies underneath the building. Between the two sloped roof sections is an 2 foot gap, allowing for clearstory windows in the rooms that are not on exterior walls.