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  1. #1
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    cost of additional floor

    newbie in construction here
    still looking over the planning board
    roughly speaking can someone tell me what is the price factor difference between building an area spread over one floor or dividing the same meterage in two floors?

    thanks!

  2. #2
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    not much

  3. #3
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    You save some money on roof, you spend more on structural support.
    Can work out a little cheaper, but you should base your choice on it.
    It also depends on what type of construction you choose.

  4. #4
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    Amount of m2 wall will stay almost the same, amount of flooring and ceiling will stay the same. Like Necron said, you will half the roof surface and guttering. I don't think you will actually need to spend that much more on structural support, columns might be a few mm thicker and so will the rebar (mayhaps it will change from 8 to 10mm diameter but not that much more). The ammount of columns will stay the same.

    All in all I think a 2 storey house is cheaper than a 1 storey house, it all depends on what kind of roof and insulation you want.

  5. #5
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    and builders will charge more due to the extra labour of getting stuff up higher

    so approx. the same

    just design your house the way you want it

  6. #6
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    thank you, i was asking for reference only, of course the design would be based [mostly] on personal preferences.

  7. #7
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    so you want to design a single storey, a 2 or even 3 storey house?

  8. #8
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    Quote Originally Posted by DrAndy View Post
    so you want to design a single storey, a 2 or even 3 storey house?
    tending toward high ceiling single story house separated into two three separates units. i will share the design in the future.....

  9. #9
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    now you are looking at the most expensive option

  10. #10
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    i was not looking for the cheapest method, only getting a sense of the price differences....

  11. #11
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    Quote Originally Posted by aircut View Post
    i was not looking for the cheapest method, only getting a sense of the price differences....
    you could consider a single floor high pole home.....then fill it in with add bedrooms/bathroom/garage etc underneath if and when as required?
    As stated, probably slightly more expensive structurally..can only guess but doubt more than 10%. Obviously basic structure is what it is about ,finishing,fixtures and fittings will be much of a muchness methinks.

    BTW, as has been flogged and discussed elsewhere...absentee turnkey projects seem to somewhat high risk.

  12. #12
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    Don't forget to take the sun into account, in a 2 floor house the ground floor tends to be much cooler as it doesn't get direct sunlight.

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