Woollahra Council has launched a High Court appeal against forced amalgamations.

An earlier Court of Appeal judgement went against Woollahra Council, moving its merger with the neighbouring municipalities of Waverly and Randwick ahead.

Woollahra this week lodged an application to appeal to the High Court, after already having spent about $850,000 challenging the Baird Government's forced amalgamations.

“After consulting with our legal team, we believe there are good grounds for a High Court appeal,” Mayor of Woollahra Toni Zeltzer said.

“We are extremely disappointed that we have to continue to spend public money on legal bills, but we want to be absolutely sure we've done everything within our power to protect the Woollahra community against this merger.

“There are no discernible benefits for the Woollahra community under the proposed merger — only costs — so we are not prepared to give up the fight on behalf of our community.

“We hope the minister will refrain from making any proclamation regarding Woollahra before the matter can be considered by the High Court.”

The council has gone further in its legal battles than any other in the state.

Woollahra Council started its appeals last July decision by challenging the legality of the amalgamations in the Land and Environment Court.

Lane Cove Council is also fighting the amalgamations at the Land and Environment Court as well, but Mayor Deborah Hutchens does not expect much.

“I don't think we have a great expectation of winning anything at this point,” she said.