As the bulldozers moved in, the residents remained angry that the developments were ever approved.

Ian Simpson has led the charge to "save" Knoxfield from inappropriate development. After a series of unsuccessful cases at the Victorian Civil and Administrative Tribunal, he said he was disappointed the voice of residents had not been heard.

Mr Simpson said around five developments on Kathryn Road were under construction or about to start. "This is an example of why big is not better."

The developments, some of which are multi-storey townhouses, are a concern to long-time residents who moved to Knoxfield for the space and natural environment.

Mr Simpson said Knox Council had rejected all the development applications, but VCAT had overturned the decisions.

VCAT ruled the developers had met planning provisions, and the new housing would contribute positively to the neighbourhood character.

A Knoxfield resident since 1969, Jeanette Spencer said she did not want a double-storey townhouse looking on to her backyard.

"I don't understand how so many objections and appeals can fall on deaf ears when they get to VCAT."

Warren Lawes, who has lived in Knoxfield for 50 years, said consideration should be given to the local residents.

"When do we get our say? We've worked hard to keep our homes, and have chosen this area for a reason. We like a little bit of space."

VCAT spokesman Mario Xuereb said parties who were dissatisfied with a decision of the tribunal could appeal to the Supreme Court.

Members of the public who have a complaint about the conduct or behaviour of a VCAT member can also send a written complaint to the VCAT president, who will investigate the matter.

A three-year strategic plan for the tribunal, Transforming VCAT, will be released in September.

Mr Xuereb said a set of indicators would be developed for tribunal members addressing areas such as knowledge and skills, communication, decision making, professionalism, efficiency, leadership and management.

"These initiatives will provide members with important feedback about their performance and, in particular, about the manner in which they conduct hearings," Mr Xuereb said.