Permission has been granted for a development of 88 apartments at the former Phoenix Park racecourse in Castleknock.

An Bord Pleanala gave the green light to Flynn & O’Flaherty Construction for four blocks – two six-storey, one five-storey and one four storeys in height.

The units, comprising 72 two-bed, 12 one-bed and four three-bed homes, will be built on a 1.5-acre site which forms part of a larger development of around 100 acres.

The site, which was previously proposed as a potential location for the new National Children’s Hospital, is adjacent to the main N3 Dublin to Navan Road.

Permission to build was granted by Fingal County Council last year but this decision had been appealed by one objector.

The appeal argued that the height and scale of the proposed apartment blocks are out of line with existing developments in the area and are unsuitable for this location.

It also raised issues relating to “overlooking, density and open space provision” but an inspector’s report ruled these were “specifically addressed” at an earlier stage of the planning process.

The inspection found that the development is “a significant distance from existing dwellings and will not give rise to overlooking” and is also “consistent with the density standards” in development guidelines.

An Bord Pleanala granted permission with a number of conditions attached.

The project will include 111 car parking spaces, with access to 96 “under croft” spaces via Phoenix Park Avenue with 15 more on street.

There will also be an “accessible landscaped garden deck” at first-floor level and landscaped open space at ground level.

Flynn & O’Flaherty Construction claimed that the appeal was “vexatious” and that the appellant “has no material interest in the proposed development”.

The appellant, James Wharton of Ballicky, Bantry, County Cork, denied that the appeal was vexatious or frivolous.