You might specifically want a 1-story home, but making it 2-story would halve your footprint & give you a bigger yard, as well as retain heat more efficiently.
Busy areas like hallways, staircases, & entrances should be close to the center of the house, to minimize traffic flow. Move that Entry closer to the middle of the front.
Move the Mud Room to merge with the Laundry, & ideally the Kitchen should be very close to the Garage.
You've got a lot of wasted space in the Dining room, Ensuite, Kitchen, etc.