Cost issue for earthworks on a slope

  • Erstellt am 2025-02-06 07:41:16

yorolf87

2025-02-06 12:29:02
  • #1
Thank you very much for the many responses in such a short time.
Asking the "new neighbors" is not that easy, it is a new development area and a maximum of 1/3 of the houses are standing, and these at most in the shell construction phase. I would have to be lucky to be on site and meet a builder, then I could certainly get information about the soil composition.
The houses in the background have been there for a while, I think I can forget about getting information about the soil there.
I am attaching a few more pictures again, showing what my current idea would be, a height map, current houses and their protection, however with a 4 meter height difference over 20 meters width. The picture with the 2 houses under construction shows one with a basement (right) and on the left only with a slab, I had imagined the left variant. The easiest thing would of course be if I randomly meet the builders. Since my currently reserved plot has a street to the right, I save myself the retaining L-stones compared to that.
I would plan the garage or carport either on the left or right, whichever is easier to implement in the end. This may be exactly on the property boundary.
 

kbt09

2025-02-06 12:44:29
  • #2
Is there no plan with more high points and a few length measurements? And, are the currently submitted plans oriented to north? Are there building window restrictions? Does the property need to be accessed from the current bottom of the plan?

How do you come to that?
 

11ant

2025-02-06 13:20:19
  • #3
I would first relate the term "neighbors" in this sense to 3/5 and 3/6, whose houses have long been finished. You can actually see there that the neighbor "left version" is estimated to spend 40% of the costs, for which his neighbor builds a basement usable on the mountain side and residential on the valley side, wasting his money solely on founding his slab unused at crawl space height and frost depth. Many avoidable costs, not even formally under the cost center "earthworks". Pretty dumb, you shouldn't want to copy that. The outline probably shows a rectangular house (left side) with an attached double garage (right side) and comes from a specific house idea. If you have not used the basement potential in this, you should discard it or fundamentally revise it. As far as I have correctly interpreted your building composition, I would like to add the advice that you would do yourself a big favor by omitting a house-garage passage and setting the garage deeper than the house - I would even separate it here, possibly at the right planning boundary of the plot. Also read externally (= include quotation marks) "With or without basement: a rule as a decision-making tool".
 

yorolf87

2025-02-06 13:30:50
  • #4
Unfortunately, only that, more information probably only after purchasing the plot (surveying, soil report). Yes, the plans are oriented to the north, I had forgotten to mention that information. There are building window restrictions, as the house/foundation slab drawn in the picture falls within these development limits. The front door faces south, the right side (east side) is basically garden/hedge. As I am not an earthworker, I simply assumed that otherwise L-blocks would lie directly at the street to the property; I can't imagine that being allowed. Thanks for the open and honest answer, that at least helps me with the whole project. As I already wrote, I am at the very beginning, so I was hoping for experienced help here. When I read that, maybe it is not so smart to build on a foundation slab, even if the height difference at this house is a good 2 meters more. The garage topic is currently not yet planned, as I am still hanging on whether I really want to try it with the plot or if I end up with too many problems/costs. Currently, I am collecting ideas and suggestions from you.
 

11ant

2025-02-06 13:43:51
  • #5
Most of the help you will find here with the simple trick of reading a lot of other people's threads. For beginners, at the same place as my basement posts, you will also find the "A house construction schedule, also for you: the phase model of HOAI!". With a 2m height difference under the house floor area, you pay 100% of the basement costs whether you build it or try to avoid it. Did I misinterpret the house outline and are you planning an angled bungalow? Your biggest cost trap is the layer 8 problem (punctuation emoticon missing, not my fault).
 

yorolf87

2025-02-06 14:02:22
  • #6
I am actively participating in this forum but specifically to get an answer to a question about an existing plot of land, just reading is not enough.

OK, I was not aware of this, I might have found that out in one of the many topics. So I can discard the current planning anyway. It was an angled single-family house with 2 full floors.

I just like to hang on the garage.
 

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