ᐅ Basement Height: 1 Meter vs. 60 Centimeters – Cost Perspective
Created on: 31 Jan 2024 22:08
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CheoRatharsair
Hey,
we are working with our architects on a well-advanced design and are about to apply for the building permit / planning permission.
One of the final decisions is whether the basement (with a waterproof concrete tank) should extend 60 cm or 100 cm (24 inches or 39 inches) above ground level.
According to our architects, choosing 100 cm (39 inches) might save a little money, but it wouldn't be significant. They also consider earthworks and the waterproof concrete tank as major cost factors.
From my understanding, earthworks and the waterproof concrete tank should be noticeably cheaper if we go for 100 cm (39 inches) height above ground (less excavation, less concrete for the waterproof tank, less volume that needs elaborate moisture protection). Visually and regarding the terrace, 100 cm (39 inches) would be fine for us.
Is it worthwhile to go for the 100 cm (39 inches) basement height? What are your thoughts?
we are working with our architects on a well-advanced design and are about to apply for the building permit / planning permission.
One of the final decisions is whether the basement (with a waterproof concrete tank) should extend 60 cm or 100 cm (24 inches or 39 inches) above ground level.
According to our architects, choosing 100 cm (39 inches) might save a little money, but it wouldn't be significant. They also consider earthworks and the waterproof concrete tank as major cost factors.
From my understanding, earthworks and the waterproof concrete tank should be noticeably cheaper if we go for 100 cm (39 inches) height above ground (less excavation, less concrete for the waterproof tank, less volume that needs elaborate moisture protection). Visually and regarding the terrace, 100 cm (39 inches) would be fine for us.
Is it worthwhile to go for the 100 cm (39 inches) basement height? What are your thoughts?
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CheoRatharsair1 Feb 2024 15:03Yes, that would theoretically be possible, but I believe the architects will charge more if we want to make such fundamental changes now, since we are already at the fourth draft. Besides, living spaces in the attic with windows are definitely nicer than in the basement, right?
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motorradsilke1 Feb 2024 15:05CheoRatharsair schrieb:
Yes, that would theoretically be possible, but I think if we want to plan such fundamental changes now, the architects will charge more since we are already on the 4th draft. Besides, living spaces in the attic with windows are nicer than in the basement, right? It depends. If you have sloping ceilings, in my opinion, not really. You can have windows in the basement too if you set it back by about 1 meter (3 feet). Also, the basement is always better temperature-controlled than an attic.
CheoRatharsair schrieb:
but I think if we want to plan such fundamental changes now, the architects will ask for more money, since we are already on the 4th draft. That doesn’t sound good at all, more precisely: it points to poor preliminary design planning.
Just like the initial enlargement of the ground floor in the first place.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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CheoRatharsair1 Feb 2024 15:36Silke, yes, that makes sense. We have a dormer and roof window on the top floor, so it looks nice, I think. But I agree with you anyway. We had considered what you said for a while but then decided on living rooms on the top floor.
What do you mean exactly by preliminary design planning?
To be fair: The expansion of the ground floor is more our fault or rather our wish.
I think it would be better for the discussion if I post our project in more detail in a separate thread, right?
11ant schrieb:
That doesn’t sound good at all, more precisely: like sloppy preliminary design planning.
As was already the case with the expansion of the ground floor in general.
What do you mean exactly by preliminary design planning?
To be fair: The expansion of the ground floor is more our fault or rather our wish.
I think it would be better for the discussion if I post our project in more detail in a separate thread, right?
CheoRatharsair schrieb:
What do you mean by preliminary design?
To be fair: expanding the ground floor is mostly our fault or rather our wish.
I think it would be better for the discussion if I post our project more completely in a separate thread, right? I'll start from the end: yes – preferably with the completed questionnaire pinned at the top of the floor plan section, including links to this thread both ways.
By preliminary design, I mean the classic approach of creating a preliminary draft to visualize the concept, showing how the room program is translated into the building and distributed across the floors. This important step is often skipped nowadays, even though it is key, and any changes to the concept at a later stage cost significantly more time and money.
Clients tend to jump in prematurely (and often already bring their own plans), and inexperienced or lazy architects frequently don’t correct this. If clients even pay extra to catch up on missed basics, it only benefits the architect's budget. I filter out such cases in advance.
By the way, the height positioning clearly belongs in the preliminary design phase (design phase 2) and definitely should not be addressed only “at the last minute” before submitting the permit application.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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