Driveway planning for large sloped property - 25% gradient

Hello, I would leave the carport at the NW property boundary but shift it to the elevation line 302. Then make the driveway straight. Who wants to drive curves on icy roads? Then you still have about 1 m height, which can be easily managed with a staircase. The entrance from the CP then towards the SW. Incline then about 15%. Have fun tinkering.

Slowly the information is trickling in. But there are still some uncertainties.

In the site plan there is a garden floor and a ground floor. I assume the height specifications are supposed to be the upper edge of the finished floor (top of finished floor). This means the garden floor on the valley side is already 2.30m above the existing terrain. Does the basement mean another floor or how is this height difference supposed to be managed?

That would be more than four floor heights! What is the roof edge (eaves, ridge)? What exactly is stated in the development plan?

What does that mean in absolute numbers? How deep can the top of the finished floor of the lowest floor be before the desired view is restricted?

Well then:

It’s not barrier-free, but my pain threshold of 15% is maintained.

Well, exaggeration perhaps makes it clear, in fact it would be a maximum of 2m. But with the new proposal the garage fits nicely into the terrain, 1.5 sides underground and no more overcoverage.
Floor plans and elevations wouldn’t be bad so one knows where the entrance is supposed to go. And the street width to be able to assess the entrance angle. And the date of the development plan to estimate possibilities for exemptions. And the planning drawing of the development plan. And the textual provisions. And the reasoning. And ... oh right, Christmas is still so far away?

Thanks for the idea! That could be a good option!

Sorry for the missing information. I also assume the height specifications are as such. Unfortunately, we do not yet have a cross-section or a finished floor plan. However, the entrance will be on the NW side – somewhat far back, roughly where the carport started in the original plan. An additional exit will be on the upper floor on the NE side and exits to the garden on the lower floor (SW and SE).

But I received a call earlier that we will get the first real drawings + visualization by the end of the month.

There will only be two floors. My designation was not well chosen. There is a basement/garden floor (so "lower") and a ground floor ("upper"). As already mentioned, the lower floor touches the slope with at least the entire rear side.

Regarding the possible heights in the development plan. It states a maximum of 2 floors and one (developed) attic are possible:
1 full floor, 1 garden floor counted as a full floor, and 1 attic counted as a full floor as the maximum limit. On the mountain side, 1 full floor is mandatory. Attic development according to BayBO. Wall heights: valley-side building lines mountain-side up to 4.0 m above street, valley side up to 7.0 m above terrain; mountain-side building lines mountain side up to 4.0 m above terrain, valley side up to 7.0 m above terrain. Terrain modifications are permitted according to the provisions to comply with the wall height.

If I understand this correctly, the houses that are in our view should not be higher than 10 meters (4m floor + attic?).

So if our house started about 9 meters above the street, it would still be possible to look over the houses from the garden floor.

Slope properties. By now I love it . I’ll just throw in the following picture. That was an alternative plan of ours. Maybe it’s an option for you.

Thanks for the pictures. In our case the entrance problem is exactly reversed. Our house is above the street, on the mountain side. Otherwise it’s quite similar (except that we have one floor less).

I also made a new plan again of what the entrance could look like. With the draft you could shift the height of the garage with driveway further down or up to better adjust the slope of the driveway. A separate path completely from the street, over the driveway, to the house would also be possible.
On the garage itself, one could even realize a terrace or whatever.

What do you think?

Somehow this doesn’t quite add up for me.

Several tens of thousands of euros are planned for the driveway, only to then park the cars in a carport. Along with all the possible disadvantages that such a driveway brings. If you don’t want to move the house anyway (why not with a garage in the basement?), then I would rather place the carport more practically. Carport on the edge with almost no driveway and height difference. From there then a nice path with stairs to the house.

The slope requires solutions WITH the property, not against it. Garden + living/cooking/eating + access path + car on one level rarely belong together...

We also had to learn that first in our planning phase.

We stubbornly wanted the car + front door on the garden level, the effect would have been a driveway over 15m long with about 1.5–2m height difference, moreover without a turning option. Now we enter the house from the car on the same level and have to overcome half a floor height (split-level) with stairs to get to the kitchen. But I prefer to do that dry. Nice side effect, I don’t have to shovel a single square meter of snow.

So I would rather refine the positioning of the house and especially the carport than the awful slope of this extreme driveway.

Side effect: For the money you save by doing without a monstrous driveway, you can afford a lifelong snow removal service or just build a garage right away.

For me, it makes no sense to design the first curve with a 30% slope and then continue along the contour line.

Hello,
I would leave the carport at the NW property boundary but shift it to the elevation line 302. Then make the driveway straight. Who wants to drive curves on black ice? Then you still have about 1 m height, which can be well managed with stairs. The driveway from the CP then towards the SW. Slope about 15% then.
Have fun tinkering.

I think I’m a bit stuck here. So directly the carport next to the house (like on the first plan), but 2.5 meters lower (which is manageable with stairs) and then straight down to the street?
That would be a 6m difference (street at 296 and carport at 302) that would have to be handled over about 25m. Then we would be at a slope of over 25%.
Did I misunderstand the suggestion completely or not?

Somehow this doesn’t quite add up for me.

Several tens of thousands of euros are planned for the driveway, just to put the cars in a carport. With all the possible disadvantages such a driveway brings. If you don’t want to move the house anyway (Why actually not have a garage in the basement?), then I would rather place the carport more practically.
Carport at the edge with almost no driveway and height difference. From there, then a nice path with stairs to the house.

Slope requires solutions WITH the property, not against it. Garden + living/cooking/eating + access + car on one level is rarely included...

We had to learn this first in our planning phase.

We wanted compulsively the car + front door on the garden level, the effect would have been a driveway about 15m long with ~1.5-2m height difference, and no turning possibility.
Now we go level from the car into the house and have to overcome half a floor height (split-level) with stairs to get to the kitchen.
But I prefer to walk that dry.
Nice side effect, I don’t have to shovel a single m² of snow.

So I would rather refine the positioning of the house and especially the carport than the terrible slope of this crazy driveway.

Side effect: For the money saved by avoiding a monstrous driveway, you can afford a lifelong snow removal service or just build a garage.

You really bring up some very good points. Unfortunately, the proverbial jack-of-all-trades probably doesn’t exist (especially in house building). The length of the driveway itself wouldn’t bother me so much, since we have to have some kind of construction driveway anyway. Earthworks and a certain subsoil would have to be done anyway.
Getting the garage into the basement (you mean under the garden floor, right?) is not possible with the development plan. Moving the garage to the garden floor is not an option for us, because we would rather have living space and an external carport or garage.

Placing the garage further down was already suggested. The disadvantage there is that the garage would really be deep underground and you would have to climb quite a few stairs up to the house. This is not a problem for us (we currently live on the 4th floor without an elevator), but if something needs to be delivered or you have a bigger shopping load, that is really unpleasant.

What do you think about my last suggestion? The driveway would still be rather long, but the earthworks would even be somewhat limited. On the original plan, I don’t think this is very visible, but where the garage would be, there is a slope, above that a plateau (where the old house stands). In front of that is the current path going up and already a plateau that is about 1m lower than the driveway.

For me, it makes no sense to plan the first curve with 30% slope and then continue along the elevation line.

Were you referring to my last sketch? The driveway shouldn’t of course rise 30% and then be straight. The height (6m) would have to be compensated over about 40m, which should result in an average slope of 15%.

I think I’m a bit confused. So, directly placing the carport next to the house (as in the first plan), but 2.5 meters lower (which is possible with stairs) and then going straight down to the street? That would then be a 6m difference (street at 296 and carport at 302) to be covered over about 25m. That would mean a slope of over 25%. Am I misunderstanding the proposal incorrectly? I was probably confused by the garden level. Were you referring to my last sketch? The driveway should of course not rise 30% and then be flat. The height (6m) would have to be compensated over about 40m, which should result in an average slope of 15%.

As the architect drew the first curve or as you did in your sketch, that hardly works sensibly. Then you arrive at at least a 30% slope or would have to make huge cuttings. With a corresponding angle to the contour lines, this can be mitigated.