I have just completed my brand new 'Greystone Castle' and will be putting it out for sale by the end of the day!
Castle is 330 prim (30x30.5m size) and has a main floor with a nice size living room/kitchen area and two smaller rooms. Second floor has three rooms plus a middle seating area, and the third floor is open and airy! The castle features a spiral staircase, balconies on every floor and the roof is railed in also.
Also featured in this castle is my 'touch' floor that go clear to see what is happening on the above floors. There is one on each level including the roof.
There are light/blow fireplaces in most of the rooms, but can be removed if you do not want them.
If you are interested and would like to see this castle for a walkthrough, IM me in game!
(Sorry, seems like the forums are experiencing some 'minor' difficulties and won't let me add any pics at this time.)