ᐅ Removing existing material or adding gravel: which is more cost-effective?

Hello everyone,

What is generally more cost-effective when planning a plot with a slight slope: excavating soil or adding gravel? Considering that excavating would create a step of about 1.5 m (5 feet) in the garden, which would require planning for a retaining wall.

We are planning a small single-family house on a concrete slab.

Thank you in advance.

Retaining wall plus disposal will definitely be more expensive. Especially considering the additional cost of the staircase.

Aha. So, if you gravel a hillside plot by 1.5m (5 feet), you will probably also have to deal with falling hazards. Apart from that, the question arises whether you are even allowed to raise the ground level by more than x cm (x inches). Zoning plans often specify how many centimeters the finished floor level can be below or above the street level.

What kind of individual questions are these?!

I answer a post about sand-lime brick in relation to restrictions in the development plan, and then a question about a slope appears here. What exactly is a "gentle slope"?

With so many unknowns, it’s hard to give any advice.

Maybe you should just post your entire project here so we can look at everything as a whole?!

Depending on the slope, a basement or hillside house can also offer the best value for money. By the way, adding soil (filling) and removing soil (excavation) are not necessarily mutually exclusive; you can remove some material at the top and add some at the bottom. When considering this, don’t forget the issue of water. In heavy rain, it is generally advantageous to have door openings clearly above ground level.

KaraiKa schrieb:

What is generally more cost-effective when planning a plot of land with a slight slope: primarily cutting into the soil or adding fill? Considering that with cutting you end up with about a 1.5 m (5 feet) step in the garden, which would require planning for a retaining wall.

We are planning a small single-family house on a slab foundation.

That is a design mistake. According to the 11ant basement rule, the basement avoided here would cost about three-quarters of a built basement. Keep looking for a plot suitable for this building project. Or, if the plot is already purchased, consider designing a partial basement. Half a meter (1.5 feet) of elevation difference under the house footprint is still a "slight" slope—three times that is clearly not.

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