Hello dear forum,
After much consideration, we have finally decided on a house.
It will be 175 sqm (1,884 sq ft) for a family of five.
We are still debating: basement or slab-on-grade?
We have a slightly sloped plot and are weighing which option would be the best in the end. The basement would be a utility basement, incorporating a double garage, a workshop, and a storage room.
The alternative would be to build on a slab-on-grade with a double garage plus storage/shed space.
Since we are building on a slight slope, we are thinking about what costs to expect for each option. Of course, excavation costs are hard to predict, but maybe someone can estimate. Two excavation contractors have already examined the site and said that both basement and slab-on-grade are possible without problems. However, no one wants to give us a rough cost estimate, which complicates things.
Our idea was that with the basement including two garages, we might save some costs for slope retaining. Building on a slab, plus a double garage, plus higher costs for slope retaining might end up in a similar price range. We wouldn’t have much storage space inside the house.
The quotes we have are as follows:
Slab-on-grade 17,000 + 25,000 for double garage including foundation + total X for excavation work.
Basement 45,000 + 20,000 for finishing + total X for excavation work.
Could anyone give an assessment of which option seems more sensible?
After much consideration, we have finally decided on a house.
It will be 175 sqm (1,884 sq ft) for a family of five.
We are still debating: basement or slab-on-grade?
We have a slightly sloped plot and are weighing which option would be the best in the end. The basement would be a utility basement, incorporating a double garage, a workshop, and a storage room.
The alternative would be to build on a slab-on-grade with a double garage plus storage/shed space.
Since we are building on a slight slope, we are thinking about what costs to expect for each option. Of course, excavation costs are hard to predict, but maybe someone can estimate. Two excavation contractors have already examined the site and said that both basement and slab-on-grade are possible without problems. However, no one wants to give us a rough cost estimate, which complicates things.
Our idea was that with the basement including two garages, we might save some costs for slope retaining. Building on a slab, plus a double garage, plus higher costs for slope retaining might end up in a similar price range. We wouldn’t have much storage space inside the house.
The quotes we have are as follows:
Slab-on-grade 17,000 + 25,000 for double garage including foundation + total X for excavation work.
Basement 45,000 + 20,000 for finishing + total X for excavation work.
Could anyone give an assessment of which option seems more sensible?
Depending on the level of equipment, the basement can easily exceed 100,000 without peripheral costs.
We are also building a house on a slope with a garage in the basement, and just the additional staircase, windows, and garage doors have cost us 20,000.
I consider the amount you are aiming for, 65,000 + X, hardly feasible nowadays.
We are also building a house on a slope with a garage in the basement, and just the additional staircase, windows, and garage doors have cost us 20,000.
I consider the amount you are aiming for, 65,000 + X, hardly feasible nowadays.
Elokine schrieb:
How steep is the slope within the building plot? In the image section, only one contour line shows a number, so it’s not clear how far apart the contour lines are.
Are there any other restrictions in the development plan? Each line represents 1 meter (3.3 feet). So the slope within the building plot is about 1.5 meters (5 feet).
The development plan sets a maximum ridge height of 11 meters (36 feet). So we have enough space.
K
knalltüte13 Oct 2020 19:20Thirteen schrieb:
Hello dear forum,
After much deliberation, we have finally decided on a house.
It will be 175 sqm (1885 sq ft) for a family of five.
We still have to decide: basement or slab foundation?
Slab foundation 17t + 25t double garage including foundation + total X for groundworks.
Basement 45t + 20t finishing + total X for groundworks.
Could someone give an assessment of which option makes more sense? I consider both amounts to be clearly too low. My nephew has a current quote for a basement of about 120,000, and the ground actually remains on the (sloped) plot because the remaining area can be "simply" filled in. Of course, there are additional costs for retaining structures. I don’t know what exactly he planned there, but 20,000–40,000 is not unrealistic.
For our approximately 160 sqm (1722 sq ft) slab foundation, we are likely facing around 50,000 including roughly 250 cubic meters (330 cubic yards) of soil removal (in NRW).
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