Thanks,
Cali-D, what great info! I went to the link, but need to take some time to read the disclaimer page before I commit.

I will look it over in a bit.
I wonder why they chose to eliminate a planned extra bathroom? I'm sure people will be disappointed, an extra bath is an exciting prospect for most families.
WDW1970 -

to the DIS!!
After the change in room categories a few years ago, it became more difficult to figure out what rooms WDW considered lagoon and which they felt were theme park view. I assume there are some lagoon view rooms in each of the outer buildings (except Sugar Loaf) but I don't know that for sure.
I believe some of the BPK-end rooms in Boca are considered lagoon, simply from posts of returning guests. If the view of the MK is totally blocked in any room facing the lagoon, that room should be a lagoon view, IMO.
All of the photos of the lagoon views from BPK have the DVC construction featured pretty prominently, so each guest will have to decide if it will mar the view of the Poly to the extent they prefer another room. For me, I'd much rather have a garden view room, as the views of the resort are so pretty. I felt that way even without the construction, btw.
I have never seen a room layout diagram like the one for WL. From what I gather, the WL layout was provided to a DISer who was friends with someone high up at the resort years ago. There are some diagrams for a few other resorts on a website called DisneyZone, but the Grand isn't one of them. I know the layouts for Y&BC on that site are a bit outdated at this point, but it still gives some insight as to where you might end up.