ᐅ Sealing Basement Walls – Perimeter Drainage with a Sump Pump?

Hello,

I’m not sure if my topic fits here exactly. It’s not precisely about insulation, but it’s the same principle: it concerns the basement wall.
My builder suggested installing a perimeter drainage system with a sump pump around the basement. The basement is planned to be used as an office, which of course should remain dry.
My building expert recommends a waterproof concrete tank (white tank) according to load case 6. However, my builder considers that completely excessive.
Could you give me advice on how to waterproof a basement effectively without going overboard? I’m not aware of any particular moisture issues in the soil.
Thank you.

What does the geologist say in their soil report?

um... there isn’t any. :-) The general contractor (turnkey) says he has already built in the area and doesn’t need one... I think with drainage and a pump it will stay dry... I wonder how maintenance-intensive something like that is...

This can be done, but it is not recommended.

RobsonMKK schrieb:
You can do it that way, but it’s not recommended.

What exactly? Building without a soil report or the drainage solution in general?

A basement without a structural report.
Sure, you can save the 1,000€ (about 1,100 USD), but you shouldn’t be surprised if problems arise.