From here … http://www.dragonlanceforums.com/showthread.php?24138-Wrath-of-the-Righteous-Maps-No-Posting-Please&p=552329#post552329 … I zoomed in on Gwerm Manor at J and then using this … https://wrath-of-the-righteous-59.obsidianportal.com/wikis/kenabres-locations … I did a trace.
You might be able to see the very light pink line. I assumed that there were turrets in the North West and South East corners, with patios, of a sort, on the North East corner. Also based on the shading, I assumed there was a peaked roof structure over most of the building.
This is my approximation of the building, with lines highlighting the roof edges. There is a fairly large flat roof section in the middle of the building as a result. The overall building is about 200 feet by 200 feet.
My draft render:
I have the two foyers (Southern and Northern walls) with their own peaked roof. Overall the main building has two floors with attic (and assumed basement), with each of the towers having three floors (with attic and assumed basements).