(there will be no) problems in connection with

Good question!
I am not sure how I would interpret this - you may be able to see from the rest of the text, but there are two possibilities:

1. That the water table might be high enough to cause damp in the house, or settling & instability in the foundations etc.

This is the one I would immediately think of.
In these environment-conscious times, there is another consideration:

2. Building a house there might cause problems with the groundwater through seepage and so on.

Your best bet is to formulate it neutrally to cover both situations or either.
´i vejen for´ is a fairly colloquial expression after all, and more precise details would have to be given if there were problems.

Examples:
http://www.alternativinfo.dk/public/art_2002/oko_dyrk.htm
De var blevet pottet i det tidlige forår 1997, havde i i sommerens løb lidt en kummerlig tilværelse, for ligegyldigt, hvor de stod var de i vejen for byggeriet.

http://www.vejenkunstmuseum.dk/Dansk/troldekort/fyns-amt.htm
Trolden Find, der boede i Findhøj i Nr. Højrup, prøvede hele tiden at lægge hindringer i vejen for byggeriet af kirken

These point in the direction of hindrances to building the house.

This can be translated verbatim as "in the way of" the new house, but I prefere interfere.