ᐅ Construction project on a site with a slight slope

Created on: 7 Sep 2020 19:28
S
schichtler91
Good evening everyone,

I have been following this forum for a while now and am really impressed by how many tips and useful information can be found here.

Attached is the plot of land I intend to buy. It is 649m2 (approx. 25x25m).
My main question now is at what level we should most easily place the house/garage/terrace or even the entire plot?
Honestly, I am also a bit worried about the costs.
Next Monday, I have an on-site meeting with an earthworks contractor but would like to get your input beforehand so I don’t go into the appointment completely unprepared.

The neighbor on the left (1756/20) is at about elevation 540.5, the neighbor above (1756/22) estimated at 543.
The neighbor above has already built a retaining wall on my side of the property.

My idea is to bring the house + garage + terrace up to street level (about 542) and let the rest of the land slope gently down.
Is something like that even possible?
That would mean building some kind of wall towards the street (Buchenweg) / left neighbor, which would naturally cost quite a bit.
As you can tell, I am not very experienced and appreciate any suggestions.

Unfortunately, the numbers aren’t very clear on the plan, but I hope you can make something of it and I look forward to an engaging discussion.

Sorry for the amateur drawing, quickly done on my phone; north is exactly at the corner where the garage is located.
The house is about 10x10m, plus a double garage about 6.5x8m.

Thanks in advance!

Regards

Lageplan Baugebiet; Parzelle 1756/21, EFH 540,60 m; rotes Rechteck mit Pfeilen markiert.
H
haydee
7 Sep 2020 22:19
Has the upstairs neighbor really added that much fill?

Why do you want to raise the ground level?

I would build the house at around 541 something, below street level.
If the garage is allowed that close to the street, it would be at street level.

The garden would be slightly below the terrace.

Every shovel of excavation costs money. Every amount of fill costs money.
H
hampshire
7 Sep 2020 22:26
I agree with @haydee – first, check where the rainwater will drain. You don’t want to end up with a flooded basement.
S
schichtler91
7 Sep 2020 22:28
Yes, some filling has been done.

We do need to add a bit of fill to ensure the house is level, and the terrace should also be accessible without steps. From the terrace down to the garden, we can consider steps.

Are there any issues if the garage is set slightly lower than the house? Is there anything to keep in mind? In that case, we could leave the ground level as it is in the driveway/garage area.

Can anyone roughly estimate the additional costs for all this? €10,000? €20,000? Just a guess, I know...

Attached are some pictures to help you get a better idea.

Thanks for your tips!

Gelber Bagger auf leerem Baugrund vor weißen Neubauhäusern in einer Wohnsiedlung; Gras im Vordergrund.


Baugebiet mit drei Häusern: links Gerüst am Backsteinhaus, rechts Bagger, Unkrautfläche.


Zweistöckiges Haus im Bau mit Gerüst; daneben ein fertiges weißes Haus, Baustelle auf Grasfläche.
11ant8 Sep 2020 00:52
schichtler91 schrieb:

My idea is roughly to have the house, garage, and terrace at street level (around 542) and have the rest of the plot slope down slightly. Is something like this even possible?

By “the street,” you probably mean the cul-de-sac on the right side – it seems planned for you to access your property from there. The elevation of your plot is apparently assigned as 540.60 (meters) as a reference height (printed but modified by hand – by whom and why?). If you want to build 1.40 meters (4.6 feet) higher there, it will likely reduce your eaves and ridge heights accordingly.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
S
schichtler91
8 Sep 2020 07:00
That’s a good question, not from me though.
I’ll have to ask to find out what actually applies here.
540.6 would be quite low; the house would then be noticeably below street level (of the side street on the right-hand side of the plan).

Thanks for the note.
H
haydee
8 Sep 2020 07:19
Where do you access the property from?

Why can’t the house be positioned lower? You have a relatively flat building plot. Just ignore the road on the right side of the plan. The street itself slopes down toward Buchenweg. Water also flows in that direction.

The exterior area will have a slope from the street to the house on the right side, and the rest will be leveled out.