Ground Floor: Main hall, dinning room, breakfast room, kitchen, pantry, freezer, parlor, game (arcade) room, conservatory, library, downstairs bathrooms, and trophy room.
Second Floor: Bedrooms for all of the guests, art studio, movie theater, grand staircase, small storage closets, hallway with family crest curtains (red with a flourishing symbol on them), upstairs bathrooms, ballroom, and lounge.
Third Floor: Master bedroom, master bathroom, private study, billiard room, office (for important meetings), large storage closets, and drug lab (all rich people have this...)
Fourth Floor: Attic, observatory (telescopes and such), security room (footage of the whole estate), and the roof.
Below Ground: Morgue, cellar, winery, vault (for extremely valuable items), and weapons room (guns and such).
Separate Buildings: Garden shed, spa complex, servant's quarters, Giles' cottage, electrical control center (controls power for the whole estate) stables, zoo (does not make much sense now, but will become clear later on in the game), boathouse, garage, butchery, and pool house.
Grounds: Duck pond, hiking trail, patio, pool, deck, chicken coops, hedge maze, lake, main gates, fountain, garden (plants), food garden, forest, and delivery entrance.