Green Party activists say they believe they can hold the balance of power in West Norfolk after May’s elections.
The party launched its borough council campaign at the weekend, announcing their intention to field at least nine candidates, three more than at the last elections in 2011.
Then, the Greens won one seat and narrowly missed out on a second.
And branch chairman, Verity Connolly, said the opportunity is there to make gains that could help to create a more “balanced” chamber.
She said: “People on the doorstep feel they’re not being heard. We listen to what local concerns are and I think people like that.”
Although formal nominations for the borough elections do not open until April 1, the Greens have confirmed they will contest seven of the council’s 42 wards, two more than four years ago.
The party admits its best chance of winning a seat is likely to be in the Grimston ward, which its general election candidate, Michael de Whalley, lost by just three votes in 2011.
But Mr de Whalley said they were confident of winning seats both inside and outside Lynn and urged voters to support the party they wanted to win, rather than voting tactically.
The party has confirmed that its national deputy leader, Amelia Womack, will be visiting West Norfolk on April 11 to support its candidates in the borough.
The visit will be followed by a fundraising concert at the King’s Arms pub in Shouldham, which will also be open to non-members.
The Green Party’ confirmed candidates so far are as follows:
Gayton ward: Nigel Walker, Grimston: Michael de Whalley, Old Downham: Eamonn McCusker, Old Gaywood: Rachel Lawson, St Margaret’s and St Nicholas: Rob Archer and Jonathan Burr, South Wootton: Verity Connolly and Ed Scholes, Wiggenhall: Kevin Holland.