ᐅ Single-family house – floor plan and cost estimates for construction?

Created on: 27 Aug 2013 22:41
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-Nelli-
Hello everyone,

My husband and I are considering starting the house building process within the next one to two years. Today, we had a consultation regarding a government-subsidized home savings plan (Wohnriester) and briefly discussed our financial possibilities. We already have an idea for a floor plan tailored to our desired plot of land. Here are some key details:

Plot: approx. 1170 sqm (40€/sqm plus development costs), flat
Building area: approx. 30 x 25 m (about 98 x 82 ft), so plenty of space
Requirements: knee wall (Drempel) 75 cm (30 inches), one full story, roof pitch 35 - 48° (only gable roof)
Other: access to the road from the southwest via a turning area; there is possibly an option to create a small driveway on the southeast side; meadow (arable land) to the east; kindergarten adjacent to the north

House:
- no basement (cost reasons, storage space in the attic)
- heating system undecided (preferably controlled ventilation with heat recovery plus underfloor heating in the bathroom and dining room)
- two adults and two children (one child already, one planned)
- it is not yet decided whether the house will be built with masonry or timber frame construction
- double garage planned with terrace, garages will also have gable roofs
- KfW 55 energy standard

We would appreciate suggestions, critiques, ideas, and maybe someone can give us a rough estimate of the price range we might expect for this floor plan.

Many thanks in advance.


2D floor plan of a house with rooms, hallways, doors, and garage


Two-dimensional house floor plan with multiple rooms, doors, and furniture on grid plan


3D view of a brick house with garage and terrace as a rendering


3D house model with balcony and brown brick facade


Front view of a 3D house with brown brick cladding, roof, and windows
Y
ypg
28 Aug 2013 23:07
A piece of advice: skip the rooftop terrace, build a proper roof instead, and enjoy the garden along with the cost savings.
f-pNo29 Aug 2013 12:49
-Nelli- schrieb:

Regarding the roof terrace; only a pitched roof is allowed for garages in our building area. We hope to work around this restriction with the roof terrace. A carport would also be an option, but we would prefer a garage (both motorcycle riders).

Here’s another thought. You mentioned that you are not building a basement and are using the pitched roof (house) as a basement substitute. If you decide not to include the roof terrace and install a pitched roof on the garage as well, you would still have additional storage space there.

A question for the experts: Which costs more – a pitched roof with a roof truss and tiles, or a flat roof that is also developed as a terrace?
-Nelli- schrieb:

Regarding the knee wall, f-pNo; we currently live in the same building area (renting), and both houses have the same requirements. As far as I understand, the knee wall refers to the exterior here. We just measured the distance between the floor and the start of the roof slope; in our current apartment, it is 105cm (41 inches). We want to try to have the same implemented in the new build.

Even if the height is 105 cm (41 inches), you should look closely. The bathtub is usually elevated 10–15 cm (4–6 inches) from the floor. If the bathtub is directly under the roof slope and you want to stand up to dry off or get in and out, it’s quite possible you could hit your head on the roof slope. Of course, this also depends on individual height.
-Nelli- schrieb:

Oh, and regarding the plot size, your plot is probably closer to a more urban area than ours.

Well – I wouldn’t exactly call it more urban. Our future small town has around 8,000 residents. The next larger town (about 100,000) is roughly 30–40 minutes away. But a completely different factor plays a role for us. The proximity to a small neighboring country (a duchy) with its capital (also about 100,000) is a major price factor (driving prices up). Still, in my opinion, we managed to get a reasonably priced deal compared to other plots offered nearby.
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-Nelli-
29 Aug 2013 15:27
Hello,

I think when preparing a quote, we should address both scenarios: a flat roof used as a terrace and a pitched roof, which would also need to be accessible, as otherwise it wouldn’t really be usable as storage space. Or would a different flooring be used in that case? Also, we would probably need to add at least one dormer or a skylight in the bedroom since with the pitched roof we lose the window in the bedroom and the bathroom. We will definitely weigh the costs against each other and use that as our main guide. But it would be helpful if someone could roughly indicate which way the prices tend to go.

You’re right about the bathtub, but we can counter that a bit by moving the bathtub slightly further into the room and possibly using a corner bathtub. I think that should help somewhat.

I know that doesn’t offer much comfort now, but later you/your children will be able to sell the house for a higher price because of it. We probably won’t get as much back. Of course, that doesn’t help at the moment.
M
marv45
31 Aug 2013 00:42
Why even build a garage? Build with a basement and add a carport later on.
With a plot of this size, you would probably never use the roof terrace on the garage anyway, so why bother.
If you need two incomes to cover the loan payments, construction will take a while. The bank will likely want to wait through any probation period before approving a loan.
Jaydee31 Aug 2013 10:27
marv45 schrieb:
Why have a garage at all? Build with a basement and add a carport later on.

???? Sure, as if money is no object, right? A usable basement costs about 30,000 - 40,000 € plus a carport around 10,000 €, compared to a garage costing about 15,000 - 20,000 €.
marv45 schrieb:
With a plot of that size, you would never really use the roof terrace on the garage anyway, so why bother.

I have to agree with you on that!