I've searched high and low and taking all of the show information into account, I created my own blue prints (only the first floor so far). ENJOY

FIRST FLOOR
 Living Room
 Kitchen
HALF LEVEL FLOOR
 Mini Library with Secret Passage to Living Room
 Other entrance to Library without taking the main stairs or Secret Passageway?
SECOND FLOOR
 Library – Secret Passage to Kitchen
 Study w/ bathroom down the hall from the Library
 Gift Wrapping Room in area of stair case to 3rd floor
 Guest Room is above Living Room [10.14 Daphne Does Dinner]
THIRD FLOOR (mentioned as just a crawl space)

Other:
Nile’s Bedroom w/ bathroom

This is beyond cool! I didn't really get a chance to look at it when you sent it to me earlier but I love it! I know that The Montana is really a set but oh how I wish we could have seen the whole thing!

This is beyond cool! I didn't really get a chance to look at it when you sent it to me earlier but I love it! I know that The Montana is really a set but oh how I wish we could have seen the whole thing!

Thanks "Schmoopie"!

This project has gone untouched for a while and I want to personally thank John2234 for everything. I went to personally IM him, but I don't think it went through.

Here's the updated version of the first floor and the second floor...

Floor Plan 2 - also the large guest room was placed there from the episode when Gertrude falls through the ceiling while on the bed with Mike Shaw when they were having a Mike Shaw painting unveiling.

Given Niles' personality, I'm guessing the Panic Room is probably the most frequently used room.

Given Niles' personality, I'm guessing the Panic Room is probably the most frequently used room.

HA! The panic room is mentioned a few times in the series, I think. It is definitely mentioned in Daphne Does Dinner.

I love this! So creative! I wish they had shown his whole apartment but it's fun to imagine what it would have looked like anyway!

Jerod Butt pointed out that there is a guest room on the first floor. He brought to my attention that it's mentioned after Niles' surgery. 10.09 Don't Go Breaking My Heart. Niles: And Gertrude, thank you for giving up the guest bedroom so that I don't have to climb all those stairs.

In The Whine Club, there is a title scene that suggests that there is a fireplace in the walk-in closet. I have considered this even though it doesn't show up in any shot of the scene. If I were to add it, I think, the only place it could go is where I wrote "Walk-In Closet".

Here are all three floors. There is always room for improvement, so I am open to suggestions.

:)

After realizing the guest bathroom on the Montana was shown in Dial M for Martin, I did some revamping

here

The gift wrapping room ahahah.
It gets me everytime.