An appeal has been lodged against plans for 15 houses and 10 apartments in Cavan town.
Last month, Cavan County Council approved conditional permission for Erne Building Solutions to proceed with construction.
The plans were for a fully serviced residential housing development consisting of one detached two-storey house, 14 two-story semi-detached houses and ten apartments across three blocks.
The site is southeast of The Beeches and would be connected via an existing serviced roadway connecting to the Glenside Road.
Conditional permission was granted by the local authority, but it was appealed to An Bord Pleanala by a third party.
Karl Byrne a resident of the nearby Beeches development brought the appeal, having already made submissions on the original application.
In his letter to the planning body, he said that while he welcomed the prospect of developing the land, he wished to continue his objection on 11 grounds.
It included that three of the properties appear to be closer to his dwelling than the regulated minimum standard of 22 metres.
It was added that the same distances are not being applied between other houses in the development.
There were also concerns with the proposed greenspace, and the development's proximity to the Cavan River.
The case is due to be decided in December.