ᐅ Basement or garage, or a basement with an integrated garage

Created on: 15 Feb 2017 07:52
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hubbe1988
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hubbe1988
15 Feb 2017 07:52
Hello,

My wife and I are currently finalizing the detailed planning of our house.
We are trying to figure out what would be the most cost-effective option for us.

We plan to build a house of about 9.5 meters by 11 meters (ground floor approx. 85 sqm (915 sq ft)).

Our main question is how to approach the issue of a basement, a garage, or a basement with an integrated garage. The plot has a slight slope—about 2 meters (6.5 feet) height difference from one end to the other.

1. Would building a basement be more economical for us, considering that we might need to install foundations due to the slope?
2. Is a double garage built with an insulated roof structure ultimately about the same cost?
3. Does it make sense to integrate the garage into the basement? It doesn’t necessarily have to be a double parking space.

If we decide on a separate double garage, we would probably need a slab of about 170 sqm (1,830 sq ft).

This is the last major decision we need to make soon. Can anyone help who has faced the same dilemma?
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Evolith
15 Feb 2017 11:44
What does the architect say about this topic? How does the house need to be founded?

Consider whether you find a basement garage visually appealing. I only know those with a very steep driveway (where the street level is higher than the end of the property), and then you sometimes see a lowered car parked outside. I’m not sure how it is in your case.
11ant15 Feb 2017 12:36
The very fact that this question is being asked suggests an “entry from the street on the higher side” (?). This would imply either there is also a street at the lower side, allowing the garage to be accessed at ground level, or the garage would be accessed from above, driving down into the courtyard. In the first case, I find the idea acceptable; in the latter, not.

What matters most is the slope or gradient relative to the depth of the house rather than the depth of the plot. From about 80 cm (31.5 inches) of height difference front to back, I believe that (considering the additional outdoor space required otherwise) opting for a basement makes more sense, and it would take quite a bit of convincing not to include one.

However, many basements are hardly ever “used”: apart from housing the heating system and oil tank, the remaining space is often called a “hobby basement.” Whether a stamp collector really needs 20 m² (215 sq ft) just for their hobby is questionable to me.
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hubbe1988
15 Feb 2017 12:58
The "street on the entrance side" is on the lower side, and then it goes up about 1.5 - 2 m (5 - 6.5 feet).
My question is whether, due to the slope, I will need to build so many foundations and supports to make the house stable that I might as well have to build a basement.
I actually prefer the basement option but just don’t know what the financial differences might be between a basement and a converted garage.
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ypg
15 Feb 2017 13:33
Other factors also play a role in such a decision, for example the orientation and shape of the plot.
If the plot is long and the front facing the road is a desirable location (not exactly north), it might make sense not to build a basement, but rather a lower ground floor, with a ground floor and a roof above. In this case, the entrance and living area would be in the lower ground floor, and the bedrooms on the ground floor. The garage could then be placed outside.
Therefore, no general statement can be made here without knowing how much budget is planned for the house or how much space the overall room layout requires.
11ant15 Feb 2017 13:59
The deeper you have to lay a foundation wall, the more a "basement" basically means adding an additional floor between the footings—very broadly speaking.

If a floor that is at street level in the front is partially set into the ground at the back, it does limit its residential use somewhat—people generally prefer a view over a light well. If you then build a full basement, a garage is a relatively practical use—although the quality of vehicle access is valued differently for a daily driver compared to a parking spot for a weekend or summer car.

It depends on the individual case to what extent a below-ground entrance feels like a delivery entrance, or if people prefer to use stairs through the front yard to a classic main residential entrance.

I like to consider the basement question from the perspective of whether it’s a large, useless appendage or whether it is filled with meaningful use. A basement that only exists as invisible decoration, of course, doesn’t make sense.
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