Persimmon Homes - which is developing a sprawling 780-home estate in Hellesdon - had attempted to reduce the number of low-cost homes by 84pc, blaming rising costs and flood risks.

One third of the site in Hellesdon has been already been completed (Image: Denise Bradley)

But a Broadland Council meeting on Wednesday saw councillors overlook the recommendation of their own officials and vote against the proposal.

Caroline Karimi-Ghovanlou, who chaired the meeting, said the adjustment was "in direct conflict with wider planning framework".

Caroline Karimi-Ghovanlou, (left), the chairwoman at Broadland Council (Image: Archant)

"These expectations were clearly established," she said.

"These were not new or unforeseen challenges - they are part of the risks of development.

"If we allow developers to dilute these........

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