ᐅ Estimating Shell Construction Costs for an Extension – Who Has Experience?

Created on: 16 Oct 2018 09:10
S
Specki
Hello,

I am planning an extension to our house in about 3 to 5 years.

We have two children, but only one bedroom. When the kids get older, each should have their own room. So, the plan is to build a two-story extension in about 3 to 5 years. This would mean two rooms, one above the other, each with a floor area of approximately 4 x 4.5 meters (13 x 15 feet).

The house is made of brick. I would like to build the extension at the back as a timber frame structure. Is that possible, or could it cause any issues?

Why am I thinking about this so early? Because I am currently paying off my loan, and I’m worried that interest rates will be significantly higher in 5 years. Therefore, I would prefer to save some money now for the extension instead of putting extra payments toward my loan.

My question is: what would such an extension approximately cost?
I am only interested in the following cost items:
- Foundation + concrete slab
- Timber frame + insulation
- Roof

I will do the rest myself or can estimate it on my own.

I really just want a rough cost estimate.
Should I expect around 20,000, or more like 30,000, or rather closer to 40,000 euros?

Maybe someone here has experience with this.

Thanks in advance!

Best regards,
Specki
A
apokolok
17 Oct 2018 22:29
hanse987 schrieb:
It doesn’t have to be an architect or structural engineer. A master carpenter is also authorized to submit plans.

Interesting and true.
However, whether it is always a good idea to have the entire extension planned by a carpenter definitely depends on the carpenter.