So first of all: there are far worse hang-floor plans in terms of the layout. But I always find it very unfortunate when the house visually does not follow the slope – here it already looks somewhat placed..., with a frame, meaning the basement. This is due to the general contractor’s planner: he does not plan freely, but adapts the standard houses of his general contractor somewhat to the customer. 40 degrees for a roof on a house on a slope – chapeau ;) small KS – chapeau ;) If indeed not much more should be changed, I would at least plan the cloakroom generously in the basement and not on the ground floor. Also consider reducing the size of the living room in favor of the kitchen/dining area. The kitchen is drawn unrealistically and needs a proper island with depth. In the upper floor, the walk-in closet as it is doesn’t help much. Possibly fill in on the west side and also add a terrace door there... laundry chute would be an issue... Windows, also an issue. They look very narrow to me. Pay attention to the west side! If you still have time, either have a new plan made by an independent architect (who knows about slopes). It should have a flatter roof, thus accommodating the slope more, and include a garden opening on the west side. I would probably forgo one level (meaning bungalow plus basement) and stretch the house longer so that there is more connection to the garden. If you look at the site plan, you have enough space on the property to also use the front south as garden access... Then also more size for the dining area again, storage room also on the sleeping level, and consider whether laundry would be better placed on the sleeping level. But a realistic bungalow on a slope would have the utility rooms in the slope at the rear of the lower level, and just one staircase already has a lot of value. The more I write, the more I have to say that this is the wrong house on the property. It feels like a foreign body.