THE Clonskeagh area in Dublin is to get a third office park following the granting of planning permission for a 200,000-square-foot development on the site of the former Jones Group headquarters. The consortium which bought the site for £3.25 million has every reason to be happy with their purchase not only because of the continuing buoyancy of the office market hut also because it secured permission for about 50 per cent more space than was generally expected. The new owners are to develop 10 three and four-storey buildings varying in size from 12,000 to 47,000 square feet in a £20 million scheme which will have no less than 804 car-parking spaces, more than half of them at basement level. Sherry FitzGerald will be quoting a rent of £18 per square foot for what will be known as Belfield Office Park. Rents in the nearby Richview Business Park are running at slightly over £14 and come in at about £13.50 in Beech Hill. When the latest park is completed, it will mean that Clonskeagh will have one of the heaviest concentrations of office space in the suburbs. All 200,000 square feet in Beech Hill are completed and work is well advanced on the final block of 30,000 square feet in Richview, bringing the total volume of space there to 125,000 square feet.