Maybe add a little colour to the main bath for the younger girls by making the wall colour a light blue, which goes very well with the white and gray and carrara look. I would use a carrara marble look accent tile in their bathroom, too if I painted it blue, rather than just gray as Karen suggested. Gray and white is not so much fun for little girls. Palladian Blue Benjamin Moore Or even a touch of violet in Benjamin Moore's Peace and Happiness 1380 I am doing similar colors to yours in my bathroom. I picked up several sheets of something called Tempesta Neve Tumbled Amalfi from the chain store The Tile Shop. They are little 2x4" tiles on a 12 x 12 sheet. What got my attention were the sparkles in the stone. It looks like someone spilled sugar in the rock. I am going to use it to top off the part of the bathroom walls that are tiled with carrara-look ceramic or porcelain tiles. I have white marble pencil molding (which cost three times as much as the Tempesta Neve Tumbled Amalfi did!) to go below and above the sparkly tile, then I will have the wall paint in a light blue. My bathroom vanity will be an antique lady's vanity with a vessel sink on top and I need to repaint it. I am considering Peace and Happiness for the vanity. The floor may be a darker gray porcelain or a medium gray octogonal tile. The shower is going to be gray and white swirl solid surface.

Are you doing new drywall where the base will go? If so, a nice modern touch is to do the tile or wood base flush with the drywall. The drywall would be run down to just above the baseboard height, and a reglet used to make a nice crisp edge. The tile or wood baseboard is then shimmed to be even with the drywall. http://www.remodelista.com/posts/remodeling-101-how-to-build-the-perfect-flush-recessed-baseboard-delson-or-sherman/ I have seen it done with same tile as the floor and it looks pretty amazing, IMO.

" Do you have to leave your potential unit on the first floor to get to the second floor of your potential unit? " first floor has no units. afaik it's like a 80x200ft space that hasnt been used in 20 years or more. no idea what's there. they will develop all 2nd floor first on that side of the building and then, unknown. extra to 2nd floor in from outside via stairs, the back entrance also has stairs but also loading dock access. (below answers inline to keep questions separate) " No indications of plumbing drain locations. no plumbing is yet installed anywhere, hence why I wanted to have an idea for layout to see what I like or disline, before going to Architect and contractors to specify all that. right now, they are clearing out the area and installing studs to create separate units. No indications of electrical service amperage, or location. same as above whatever is there now is old and will be gutten out/rewrited. idea for 200amp circuit. No indication of stair location. Or even that it was a two story. stairs nowhere near the unit, one is about 20ft down the corridor and other 50ft or so. No indication of the internal steel supports and bracing for the masonry walls. those are specified on picture by black squares. they are columns and support wide/long old growth beams that support roof. No indication of floor construction or method of hanging from masonry walls. that, i do not know, but floor is old growth pine.. could be 50+ years old. i seen it refinished in other units in building and even with patching/etc, it looks good. No indication of infrastructure of any kind. it's really an empty shell right now. No indication of general location and climate. northeast within 80miles of boston. No indication of AHJ regulation, involvement, and oversight. I do not know exactly, right now, as I do not yet own the place. Not even a decent as built drawing. I do not have anything yet as of now. Plan to update it later when I do. Are you are being disingenuous for some unknown reason? Or do you understand so little about construction and design that you are failing to post even the minimal required information for people to rough sketch? Not being disingenuous. I do not have any construction experience. I am not sure what is required as I do not own that space yet. I am trying to have basic layout done in my mind to even have some ideas what I can do and cannot do before I start something that will be harder to unwind. Existing conditions and infrastructure can not be ignored. There is no "blank slate" here. There never is in any remodel. But something like this has many more restrictions on the potential design. The information required here isn't being shared, and posters are getting bits and pieces like teeth being pulled. That is not how you excite people about your project enough to volunteer thousands of dollars in free work. Most people feel pretty disinclined to keep on pulling teeth. They'll tell you to just go to the darn dentist and pay by the hour" please ask me questions that you need to know and if I know, I will share what I can. I do not want to provide location for a simple fact that is very premature as I do not own it and my own privacy, in case I decide to go ahead.

Sink, toilet, shutters are salvageable.