Don't put the TV over the fireplace. Your necks will thank you, and you've got a great spot for it on the back of the garage wall. I also wouldn't buy a sectional. It will limit your furniture arrangements and no one ever sits in the corner anyway. Two sofas or a sofa and chairs are much more versatile, and the kids are going to want to lay all over the floor and on poufs.

There are multiple stores where I live (large metropolitan suburbs) where you can have a custom sectional made, for about what you'd pay at Room & Board. I got to choose the fabric, the welting, the exact size, the depth, the arm width and shape, the firmness of the cushion, poly wrap v. down wrap, the shape of the feet, the finish on the feet, and more. We got a 3-sided sectional (44" deep), approximately 148" , 168" on the back, and the 3rd side is a long chase with a huge ottoman. Yes, it's huge. As I recall, it was less than $5,000. Of course people sit on all 3 sides and talk. We also have other families over to watch the Superbowl, and things like that, and everyone loves the huge, deep sectional. We have a large family, and the kids have friends over, and that's our lifestyle. So while I understand the sofa + 2 chairs for flexible design, that really wouldn't work in our situation, and I bet there's lots others who are in our same situation. I think it's a personal decision, but it's a good idea to hear all these different points of view.

very nice room. The rug and that chair work, the sofa in the white is meh. (definite no in that gray color). but I think you can do better. I would have gone w/crisper whites and blacks and warmer grays. Maybe that PB rug is nicer in person, but in the photo the color looks really muddy. I like the ones in this pic,,,deep charcoal, whites, grays, touch of light aqua.. and this table For rug, I'd do a coloring like this one, or some of the others in the pics I love your floors and thing you should bring in some wood in your sofa, even if it is on the modern side. Like this: A walnut, style sofa like this, in a navy, charcoal, very light gray,,,would be perfect more blacks/charcoal, crisp whites, some texture, don't know what the plans are for the sides of the fireplace, but here are some ideas

Have you considered putting your washer and dryer in the basement or is that not practical at your location? For privacy alone, I prefer the plan from Pill-Maharam Architects that someone else suggested better than your original; however if having three bedrooms and one bath all on one end of your home is essential because of a limit of one bath on that main upper level, at least reconsider your floor plan with regard to your entrances. If you will be accessing the basement from the main upstairs level via an interior stairwell anyway, consider putting that stairwell in a pair of enclosed entrance rooms, both on the breezeway side of the home but with one both upstairs and the other downstairs. Have the downstairs entry as your basement mud boot stomp room and use your breezeway as your mud stomp room upstairs. You could have your washer and dryer within in a closet beside another closet for dirty clothes hampers with shelving above for laundry and cleaning supplies either in the basement entry or the upstairs entry. From the downstairs entrance -- in addition to the closets beneath the stairwell for the washer and dryer and dirty clothes and cleaning supplies -- you could have two doors: one door leading to the upstairs entrance and the other door leading to a downstairs efficiency apartment to make your home a true multi -generational home. If you add a door in the dining area adjacent to the kitchen in the upper/main level to serve as your main level your "back" door, you could create a single entrance in the coldest front corner with two exterior doors: one to serve as both your front entrance and another to access the breezeway. You might consider placing the door to the master bedroom in a wall separating it from the dining room rather than entering the master bedroom from the hallway leading to the other two bedrooms and the one main/upstairs floor bath. If that one main upstairs floor bath is at the end of the hall with the two children's bedrooms on the other side of the house, you might could have two doors entering the bath -- one from the hall and one directly from the master bedroom. Make the front of the roof of your breezeway even with the front of your home and make it wide enough to enable you to have the option of enclosing it later to become a screened porch or even a "sun porch" -- a room that could double as an upper story main boot stomp room. If you tile your entry rooms and have each of them one step below the floor of the rest of that level of your home and include a covered drain in the floor and you could, literally, hose out any mud brought in. Remember that in the northern hemisphere, you'll usually want to put the rooms you want to have the most sun facing the south. Good luck on your new home. Let us know how it turns out.