that would make both rooms 10.5 x 17’3” . Rather long and narrow

Do you have any other bedrooms in the house?

My kids’ bedrooms were smaller than that in 2 different and larger houses…seems like a win, win situation!

One would 10'6" x 17'3", one would be 10'6" x 13'10" as drawn by Mark.

Thanks so much! This is very similar to what we were thinking about. Hopefully not an unreasonable size

My kids' room is 10' x 12' and our primary bedroom is 12'x12', so size-wise I think they're fine. I'd put the closet along the righthand wall of the top bedroom given that there's no window there so they'd end up closer to 10'6" x 14'6" and 10'6" x 13'10". I'd probably try to add a second window or skylight to the lower bedroom to have more natural light, too.

Whether other people will think they're too small depends largely on where you live and what other homes around you are like. My house is pretty typical for my area so nobody blinks at small bedrooms but in areas where most homes are newer and larger, that would be an issue.

There's a key factor to consider: where will you put the closets and how big will they be. The minimum depth is 2'. I would draw it all out to scale and see where furniture will go. I think it will be really tight to have 2 bedrooms with their own closets. If one room can be an office without a closet, I think it could work.

The lower bedroom already has a closet outside of this footprint, though--you'd presumably just use that. So you only need one for the top bedroom--you could do a 27" deep x 5' long closet along the right wall, for instance, and still have the room be 14'6" x 10'6", with room for a desk nook or shelving too.

Is this a 21 ' bedroom above a family room ? This seems to be a first floor plan, with a direct view into a bedroom from a dining area and no door?

Is there an actual 2nd floor plan?

"We're a young family with a baby".....and two more kids? One more?

@artemis78, I completely missed that the lower bedroom already had a closet. I agree that 2 bedrooms should work here.

You will need to make sure that both bedrooms have an emergency escape and egress window, a closet, and HVAC ducting. Plus the new wall needs electrical in it.

I see no problem doing it. In fact I'd encourage you to do it because who needs a 17 x 21 bedroom anyway and half of that would still be a good sized bedroom. The only major issue is having an egress window as others have stated and ventilation for heating and air to both rooms. To many here live in a HGTV fantasy world but the average size bedroom is around 132 sq. ft.

Code requires at least 70 square feet for a bedroom and not less than 7 feet in any direction. Your bedrooms will be nearly 2 1/2 times code requirements and not small in any way. I had a 22 x 15 ft. bedroom and it was just plan stupid, so cut it into a 8 x 15 foot and the other 14 x 15 room which included closets and neither were stupid small and still functional. it wasn't the master bedroom, and I now use the small one to grow plants and the other is a spare.

I see a nice sized bedroom with closets and another smaller room as an office, or craft room. Do you sew? Arts and crafts, anything?? I mean a bedroom is to sleep in and not to live and learn in, and I sure wouldn't want my electronic test equipment in my bedroom. I can't understand why people want to dedicate so much of their floor space to big bedrooms.

Who, how many and why? : )

Who says they must be equal? You have a baby AND? Nobody answered that query. One more? two more? There will be more?

Storage counts for kids. They don't care how big the room is. If its JUST two kids and you're done with baby making? Make them equal! If not? Then maybe not?

What makes a room functional for kids is a comfy bed and plenty of storage. A light to read by. Bedding of their choice and that's about it. But...if you want five kids? They fit in two rooms . Don't worry on the next owner, worry on you. Everything sells. Yes..everything, at whatever someone is willing to pay . You aren't the decider no matter how large or small the house. Get what YOU need, and don't make the mistake of UNDER thinking storage. Kids equals junk: ) Closet, shelving as important as the bed.

My bedroom was 9 feet wide until I left the house. It had a 3 foot closet, dresser, and a vanity table.

Two younger sisters shared a larger room. I'm still here many , many, many years hence. Ouch. lol

It should be doable. You will lose some space to create a hallway that can access both bedrooms.