South-facing plot 700 sqm, single-family house approx. 150 sqm, any ideas or input?

Split Level solution

SplitLevel is often exactly the solution you need. For some, the costs are not in proportion, others shy away from stairs.
Usually a mezzanine develops, i.e. the ground floor, which is then good for HO or guests, cloakroom, and WC.
Split Level also does not have a simple roof form but usually two staggered shed roofs since the half floors are staggered. Ideally, you have three floors.

What is defined as the ground floor in such cases? The basement, the upper floor, or the entrance area?

According to your drawing, this could be difficult for the building authority or not a problem at all, since you don’t have a ground floor but only a basement and upper floor.
It also depends on the rest of the development plan (heights, eaves). Equipping only the entrance area with a landing is unwise.

How would you have imagined the access for guests in this case?

Honestly: in my life, there is only one access, namely a main entrance. This may then be shared by invited people and staff. I do not plan my house for guests, but for myself. There are plenty of examples of intelligent house designs, even without SL, that separate the entrance area from the private zone so that children don’t hear every noise in the evening or parents are not disturbed by teenage visitors.

Hello everyone,

so the 700 sqm both in the title and in the first post was a typo. It should actually be 600 sqm since we have exactly 572 sqm.

This time I actually attached the picture with the height measurements. Unfortunately, I forgot it yesterday. The ground slopes slightly flatter towards the south but I think this is negligible. To the north and west there is a street 4m wide. I recorded a few height points there. The points are in the middle of the street (distance to the ground 2m).

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We discussed your idea with a cellar level at ground level in the garden for kitchen, dining, etc., the sleeping area on the upper floor, and access from the north.
How would you imagine the access for guests in this case? Would they enter at the front door near the bedrooms and then have to go one floor down to the dining area?
We did some research on how to solve this and had the idea of some kind of split level solution. The entrance area from the north side is close to ground level to the street and the upper floor (sleeping) and basement (living) would be accessible via half a flight of stairs.

Yes, of course guests go in through the main entrance. They would then have to go down one stair just like you to get to the living area. I would not necessarily place the bedroom close to the entrance.
Whether split level or a whole floor down would depend on the actual height difference for me. It would be important to me to have level access from the living and dining area to the garden. Based on that I would develop the other heights and the floor plan.

We have the following paragraph in the development plan
Plinth height:
The upper edge of the raw floor on the ground floor of the parcel, whose natural terrain is higher than the adjacent street, must not be higher than 40 cm above the natural terrain. Measurement is taken at the valley-side center of the house parallel to the street.

What is defined as the ground floor in such cases? The cellar, the upper floor, or the entrance area?

The bolded paragraph does not apply to you. Your terrain lies lower. What exactly else is stated in the development plan regarding heights?

If then possibly like this.

The seems to let the post fall asleep. Shame.

Hello everyone,

The seems to let the post fall asleep. Shame.

I'm still here. We are just thoroughly discussing your suggestions and have not yet come to the point of giving a reasonable answer.

SplitLevel is often exactly the solution you need. For some, the costs are not in proportion, others shy away from the stairs.
Usually, an intermediate level develops, that is the ground floor, which is then good for home office or guests, cloakroom and WC.
Split Level also does not have a simple roof shape, but usually two staggered shed roofs, since the half floors are offset. Ideally, you have three floors.

Honestly: in my life, there is only one entrance, namely a main entrance. It may then be used by guests and staff as well. I do not plan my house for guests, but for myself. There are enough examples of intelligent house designs, also without SL, which separate the entrance area from the private zone, so that children do not hear every noise in the evening or parents are not disturbed by teenage visits.

The many stairs honestly deter us a bit. Especially as you get older. I am aware that one should plan a house for a period of 25 years and not for life.
An alternative would of course be to live with one staircase in which I go down to the sleeping area.

Yes, of course guests enter through the main entrance. Then they would have to go down one staircase to the living area just like you. I would not necessarily place the bedroom near the entrance.
Whether split level or a whole floor down would depend on the actual height difference for me. It is important to me to have level access from the living and dining area to the garden. Based on that, I would develop the other heights and the floor plan.

That we can go out level from the living area is really a good point that we somewhat underestimated. With the solution of sleeping downstairs / living upstairs, we had thought of a larger wooden terrace with stairs to the garden. From the sleeping area one could then go out level. The point is how often do you go from the bedroom to the garden -> very rarely.

I also got inspiration from the following post.


My idea for the last post would still be that the floors could be separated in old age and the entrance from below.
But in order to get windows into the basement because of the slope, I almost have to set the basement so high that I have to overcome 90 cm of ground level and upper edge of the ground floor on the north side. That is a lot over 5 m.