Is this secondary construction cost calculation realistic?

  • Erstellt am 2018-12-12 10:53:40

ypg

2019-01-16 10:13:36
  • #1


No, it does not have to. But it is the most cost-effective alternative. If there is no shaft but the requirement for natural infiltration systems, then these have to be built. The fact is: it is about connecting the downpipes to a place where the rainwater collects and then is naturally led away into the ground from there. However, I am not an expert in this. Either the downpipe water goes into a cistern and infiltrates there, or this cistern collects and leads it back to the house. Then there are these natural systems, usually a small basin/small pond (size is calculated)... it is a bit more expensive to install. One neighbor of ours has such a stone basin (a really nice highlight in the garden on a 650 sqm property), another has this basin under his wooden terrace, which saves space and is also an option for you. If, as with the OP, the rainwater is discharged into the sewer system, you pay monthly/annual fees for this disposal.
 

Yaso2.0

2019-01-16 10:22:29
  • #2


ok, then I should probably mention that again!

By the way, I received a list of the additional construction costs (excluding earthworks) from the general contractor, which includes all prices and the contractor named. For us, the "fixed costs," i.e. house connections, surveying, etc., will amount to about 15k.
 

apokolok

2019-01-16 13:58:17
  • #3

The additional costs look okay.
The building costs, however, less so.
Have you studied the construction performance description carefully?
 

Golfi90

2019-01-16 15:13:47
  • #4
Yes, the construction service description has been thoroughly studied and is more than suitable so far.
 

lin0r87

2019-02-03 13:38:51
  • #5
Good day everyone,
do the incidental construction costs seem realistic, or should one rather plan an additional €5,000?

3. Incidental construction costs (experience values - dependent on the plot)
3.1 House connections €5,000.00
3.2 Drainage €3,500.00
3.3 Fees for building permit, acceptance, construction electricity, construction water, etc. €3,000.00
3.4 Surveying including building end surveying €3,900.00
3.5 Partial demolition costs of old building €10,000.00
3.6 Soil report €800.00
3.7 Partitioning costs €2,000.00

Total €28,200.00
 

Crossy

2019-02-04 09:18:34
  • #6
I'll say something about the points I also know. 3.1 House connections ---- seems very little to me, or has this already been laid on the property due to existing structures? 3.3 does that include notary fees, deed of trust registration? --- then probably too little 3.4 you should be fine with that 3.6 tight but could be sufficient I find (almost) everything very tightly calculated. I would certainly plan an additional 5k. No further earthworks needed? Everything included in the demolition costs? However, the figures may look somewhat different for you than for me, due to the existing structures.
 

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