Calculation for a single-family house with 175m² living area, basement, and double garage

this is how it will look like at your place, more or less, just not that much greenery outside and the neighboring houses are missing in the picture

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someone in another thread linked to this cubist house. I would refuse to cook in the kitchen, a disciplinary transfer

I stick to my point - the basement is purely a cost/benefit decision. And the benefit for us is precisely that we have additional usable/storage/development space without "wasting" "unnecessary" space on our property. Because: before I create 40m² of additional living space above ground only to then "waste" it as storage/utility room space (to put it bluntly), we would rather invest a bit more for the basement. Of course, after weighing the price. And this final assessment can be made when we know the price of the basement. Many people we have talked to today regret their decision not to have a basement. So I don’t want to discard the basement idea prematurely. And is the argument "too much space" really one that speaks against a basement? So, about "sense" and "nonsense" one can always argue – ultimately it is a matter of personal priorities. For us, it is clear that the children's room should have an area between 20-25m². The only consideration we currently have regarding this is whether to swap the (somewhat smaller) bedroom with the (somewhat larger) children's room. Well, maybe their life takes place on the ground floor because the children's rooms are "only" 12m². As I said – all a matter of personal priorities. Personally, I think that with an initially planned area of almost 180m², 20-25m² children's rooms are not oversized. Especially since the other rooms, in our opinion, are also sufficiently large and therefore no compromise has to be made here. As mentioned, considerations we currently have are swapping bedroom and children's room + possibly bathroom and office.

So, we had a house with a slight slope and the front of the basement completely above ground. I would definitely do that again if costs are reasonable, since we have repeatedly repurposed these rooms over 30 years. First storage room, then large bedroom, later office, and finally a small apartment. Life often lasts a long time – and changes more often than you think, so I would definitely have one shower/toilet down there. I would miss a second shower anyway, or later give the 17-year-old the option to stand undisturbed in the shower for an hour...- . But I would not build a fully underground basement because it would be too uncomfortable for living and also cause high costs. Rather a dry extension on the garage, a spacious garden house, etc. For me, the absolute key point would be whether it can also be used as comfortable living space with daylight and is accessible from outside so that I don’t have to carry everything through the stairwell (or guests, teenagers...). Definitely leave out the second door in the bathroom, otherwise it causes stress when locking doors – and it doesn’t really add value. Also, the circulation space and no doors next to each other, which wouldn’t look very nice. I would also definitely swap children’s and bedrooms; our children’s rooms were too small at the time but in my opinion, that size is not necessary. If it ever is, there will have to be a change anyway. Possibly I would plan the option of an extra door in case there is a second child... who knows. In my opinion, some floor plans/houses are built more for the children than for the parents and one gladly neglects one’s own claim to space, peace, and roominess. Our kids liked to play in the large hallway the most.

Oh. If I haven’t overlooked anything, it was here in post #50 that plans first emerged about what shape the house should even take. A long way for such a disappointing result: a design in the style of pseudo-clarity à la around 1980 – furthermore (to put it kindly) "design-oriented". Subordinating the division of the total area into the individual rooms or zones clearly to the appearance is something you first have to be able to afford, meaning it needs about 250, preferably 300 sqm for an average family. On the one hand, I see a basement, but on the other hand, according to the view, a completely level plot, so according to my formula, the result is "0%" terrain-related basement height. Overall, this concept reminds me of "architectural attitude gets in the way of the solution" from this thread: (in rare cases the internal links here still work, faites vos Jeux).

giving the 17-year-old the option to stand undisturbed in the shower for 1 hour

You only stand in the shower for an hour on a 17-year-old apprentice's salary if you don’t have to contribute to the water bill *SCNR*

The house I described has 250m2 and 8 rooms (+ kitchen), 3 bathrooms, there is enough space

He now suggested a small garden shed – that might be worth considering anyway for lawnmowers, etc.

I doubt that will work in the long term. The pool equipment also needs to stay dry and mostly frost-free in winter. A typical garden shed is not suitable for that. We have the equipment in an insulated garage extension that is directly adjacent to the house. That works well. In the old house, it was in the basement – which is also not so elaborate if the basement hole is being dug anyway. You have to lay a line from the utility room to the pool equipment anyway, or how else do you want to heat the pool?

The budget for the pool might get tight; at least, you shouldn’t expect anything special. Think of heating, excavation, base slab, backfilling, ring beam, slabs, cover or roof, etc. It’s not just the pool and the equipment!

By the way, there are many pools in my neighborhood and they are very popular in the warm summers. I personally use my pool almost daily in summer, even if it’s just a quick jump for refreshment after sports or work.

I would also mirror the house. Why you want the glass front facing north instead of south is beyond me. Our house is 13x8 m by the way, and the open space with kitchen-dining-living has the same square meters as yours (about 67 sqm). It’s not as spacious as it looks in your plan! You drew doll furniture in there. For a house with a basement, I would skip the pantry and plan a generous kitchen there instead. But on the south side, with a large window front. Utility room and wardrobe can face north toward the garage.

And regarding the basement: we also have one and I’m very happy about it. Lots of storage space, a cool pantry, large utility room, and a big fitness basement that always stays nicely cool. In the old house, we also had a nicely designed wellness area, but now that is upstairs in the bathroom. You don’t need tons of daylight for everything, and especially in summer, the coolness in the basement is very pleasant.

Budget for the pool might be tight; at least, you shouldn’t expect anything special. Think about heating, excavation, base slab, backfilling, ring beam, slabs, roller shutter or roof, etc. It’s not just the pool and the technology!

Well, what does “not expecting anything special” mean? I’m not expecting a 50-meter lane with saltwater anyway

The offer is available and roughly includes the following:

7m x 3.20m x 1.5m PP pool including integrated lounge bench, pool color turquoise, overflow, installation + installation parts, LED underwater spotlight including remote control, decent filter system + dosing system, WiFi extension tool for monitoring/control of the system via app, counter-current system, corresponding shaft for counter-current system, air heat pump, etc. PP and a decent cover for around 33,000.00 EUR.

I’m not missing anything here – in my opinion, there are even things included that I don’t necessarily need (counter-current system etc.) The only thing still missing here is the excavation, which will be done alongside the cellar excavation. The considerations are currently moving away from a “decent” cover towards a “proper” sliding hall. The additional cost is around 10,000.00 EUR including installation. Then no wishes would remain unfulfilled – for us.

By the way, there are also many pools in my neighborhood and they are highly sought after in the warm summers. I personally use my pool almost daily in summer, even if it is just a quick jump in for refreshment after sports or work.

So, as I said – if a pool (structurally) can be implemented, it will be built. Everyone must/can make their own decisions about the pros and cons

For a house with a cellar, I would skip the pantry and plan a spacious kitchen there instead.

That is also the current status quo. We also consider the pantry dispensable because of the cellar. The floor plan will be mirrored; then the door from the garage to the kitchen will also be eliminated.

And regarding the cellar: We also have one and I’m very glad about it. Lots of storage space, cool pantry, large utility room, and a large fitness cellar that is always nicely cool. In the old house, we also had a nicely designed wellness area, but that is now upstairs in the bathroom. You don’t need to

This exactly reflects our considerations. The cellar is primarily storage space with the OPTION to eventually convert it into living space (with bathroom/toilet). This is not about a granny flat or anything like that, but simply the possibility to develop the cellar for the child, for example, if they want to.

But I think we are done here for now – I have received a lot of input, some of which I have also passed on to the architect, which, however, will not have a major impact on construction costs (e.g., mirroring the ground floor). Now we will wait for the (first) construction cost estimate and see where adjustments may still need to be made.