Wayne Brown, chairman of the Pohe Island Committee which comprises members from both rugby organisations, said while it was disappointing, "good things take time".
"The time frame has drifted a bit because no one has wanted to pick up the cost associated with the ground issues," Mr Brown said.
The rugby organisations originally asked WDC for $850,000 to set deep concrete piles and a slab on which to build - a solid foundation in case the ground slumped. The council declined this in early 2016 but at its meeting last Wednesday agreed to pay half the geotech bill.
The council owed OBM $450,000 as part of an agreement for the club to vacate their current home at Okara. The council's proposed sale of that site has since been blocked by the Environment Court.
The clubs said WDC agreed to provide OBM a "fit for purpose" site for their replacement clubrooms.
"[The $27,425] sounds like it's not a bad result," Mr Brown said. "The council have acknowledged there is an issue with the land they're giving us and are now willing to work with us in solving that problem. Originally they were saying, 'it's your problem'."
WDC group manager Simon Weston said NRU was aware of Pohe Island's "challenges" from the outset, and councillor Tricia Cutforth said there was an assumption the council would come through with the "below ground" funding.
"I'm concerned that there's a bit of give an inch, take a mile," Ms Cutforth said.
NRU representatives told the Advocate they would not rule out asking WDC for more money toward the foundations, subject to the findings of the drilling report. NRU chief executive Alistair McGinn said he was most encouraged WDC were prepared to fund half of the money for the drilling as a contribution to the project.