GW was incredibly helpful to me with a kitchen reno a couple years back so I thought of you guys first now that it's time to do a Master Bath reno.

We currently have a small 'master' bath that's about 8'x8'. Our thought is to take down a wall between it and the small ~8'x8' 'master' closet to make a nice big master bath. To do this we would open up a wall between the bedroom and a small office/bedroom and convert that to the master closet.

Here's my question. This would take our house (about 3800 sq ft including a full basement) from a 5 BR to a 4 BR. There are currently 4 BR, including the small one, upstairs and 1BR on the main floor.

I've attached current and proposed layouts so you can see what I mean:

The current upstairs layout:

The proposed upstairs layout:

Thank you in advance for your help. Any and all opinions are welcome.

We don't have enough information though, to help you decide.

You should probably talk to a RE professional. What kind of homes are in your area? What kind of people are buying in your area? Will they want that office space instead of a huge, empty closet?

Why not consider just messing with the walls around your closet and bathroom (and your door placement) to see if you can get something larger and with a 5 piece bath without losing that bedroom? I think it can be done.

We're constrained on wall moving by the small bathroom and the fact that the door to the MBR can't be moved due to the stairs.

We could reconfigure the master bath and closet but we still only have an 8'x16' space to work with. Unless I'm missing something. =)

So go ahead and enlarge the bath, go ahead and open to the small bedroom, leaving the door. But steal some space (maybe from the other bedroom closet?) for the small bedroom to have its own closet. And steal some space for a tiny master closet, maybe opposite the top of the stairs. Then you have a multi-purpose small room, that counts as a bedroom, but could be a nursery, sitting room, office or master closet.

But, it sounds like, in your market, it won't matter?

I've looked at trying to reconfigure the space, the window along the right wall just outside the closet makes it hard to pull the closet down and extend the bathroom to the right (if that makes sense).

Trying to move the entire bathroom to the right would require relocating the toilet stack and the shower which would really up the cost.

Any other thoughts?

How are you going to drain your tub and sinks? It is unlikely it will be possible or cost-effective to drill through all the joists to join those drains to your main stack. It is more likely the plumber will want to add a stack.
(We are just finishing up a remodel with these sorts of questions. I was surprised that it was easier/more cost-effective to add a stack than it was to connect to an existing stack).

So, before you do anything definitive and "stuck" with your current toilet position, call in a plumber who does remodels to get their feedback.

Good insight and the tub drain, thanks. I was under the impression that the toilet stack was significantly harder to relocate than sink and tub drains. I'll look at getting a plumber's advice before we settle on a design.

Thank you so much for your help.