Further advice will be sought on how to protect a new business centre’s car park from subsidence after fears were expressed about West Norfolk Council’s ongoing commitment.
The council is working on the project to build an enterprise and innovation centre on the Nar Ouse Regeneration Area (NORA) in South Lynn.
But the cabinet on Tuesday was told that the car park would need specialist ground works to stabilise the area.
The council’s preferred option is to install stone columns in a bid to strengthen the area at a cost of £150,000.
Soils around the site are made up of clay, silt, peat with zones of sand and gravel.
Members agreed to allocate £150,000 in this year’s budget for the project with a further £100,000 the following year but asked for a second opinion after fears were raised about an ongoing commitment.
Assets portfolio holder David Pope said: “I want assurance that the £100,000 would be the last contribution to that project. If it continues to sink do we keep picking up the bill?
“My preferred option would be to have the area gravelled as it is far cheaper and we can always add more gravel to keep the site level.”
Regeneration portfolio holder Alistair Beales told the meeting that this was a pioneering development for the NORA site.
He said: “I can’t guarantee this will be the end of it, that is not the nature of the site. There is a strong likelihood that the £100,000 won’t be needed.”
Deputy leader Brian Long called for a permeable surface such as gravel to be used, while Lord Howard suggested that further engineering advice be taken.
The enterprise and innovation centre is hoped to create 120 new jobs. The site is hoped to nurture new and small businesses by providing conference, office and networking facilities.
The centre will be operated by the Norfolk and Waveney Enterprise Service.