ᐅ Cost Estimate in Design Phase 2

Created on: 4 Dec 2013 19:30
D
DNL
We hired an architect for design phases 1 and 2. In phase 2, we also received an initial cost estimate. This only covers cost groups 300 and 400.

Is that common practice? Or should cost group 200 also be included?
B
Bauexperte
11 Dec 2013 11:46
Hello,
DNL schrieb:

I understand your last sentence to mean that only 300 and 400 are included by definition. Wikipedia says: Cost groups are divided into 7 points: cost estimation
You shouldn’t put too much trust in Wikipedia; its entries are rarely—if ever—checked for accuracy. It is mostly an encyclopedia of half-truths.

Cost estimation is exactly what the name suggests. The architect will estimate the design based on available average values for trades and will roughly indicate the additional construction-related costs; usually, they calculate a flat rate of 10-15% of the construction sum.

Since you have done your research, I assume you know how to interpret such a cost estimate; it only becomes more accurate in later project phases, particularly when tender documents become available. If you are still uncertain about this point, I recommend browsing the HBF. This topic has been discussed extensively ...

Regards, Bauexperte
D
DNL
11 Dec 2013 12:22
I am aware that the estimate is just an estimate.

Thank you.