While accepting that 400 homes can be built on green belt land by 2015, Edinburgh's city plan seeks to limit developments to an area around Newcraighall.
But ten house builders have lodged objections to the plan. The companies include Boyack Homes, which has drawn up plans for 250 homes and a public park at Woodhall Mains.
"We believe that our site is well suited to development and ideal for low-density housing," said Boyack director Alan Spence.
Edinburgh City Council has pledged to defend its position at the inquiry, due to start next spring.