Dublin-based property tycoon Gerry Gannon, quoted in the Sunday Times rich list as being worth €231 million, planned to redevelop the famed Folkhouse.
He had sought to expand a nightclub and build 15 short-stay apartments on the site which borders Castledesmond Street, Upper O’Connell Street and Guardwell Street.
An Bord Pleanála decided to accept its inspector’s recommendation not to grant planning permission.
Planning had also been refused by Kinsale Town Council, a decision which Mr Gannon challenged.
Bord Pleanála said the proposed development would be out of scale with other buildings in Castledesmond Street and would seriously injure the visual aspect of the area.
It ruled the project would be contrary to proper planning and sustainable development in the area.
Meanwhile, a number of objections have been lodged with the planning appeals board against some large developments in the county.
Objections have been made against a 294-home development planned by Castlelands Construction for a site at Annabella, Mallow and others have been lodged against a 82-berth marina planned by Monkstown Bat Marina Company Ltd in Monkstown.
Meanwhile, Watergrasshill Community Association and Ard Cashel Residents’ Group have made an objection to Mulryan Builders Ltd’s proposals to build 42 houses in the village.
Two proposed projects for Union Hall, totalling 81 homes, have been lodged with Cork County Council’s planning department in recent days.
The largest, which consists of a mixed development of 51 homes at Listarkin, was lodged by developer Finbarr Gleeson.
In addition, Castle Combe Management wants to construct 30 two-storey terraced and detached houses in the same townland.
Developer Paul Hanlon has lodged an application with the county council for 27 two-bedroom apartments and 10 two-storey terraced houses at Pembroke, Passage West, while planning officials have refused Colm McGrath permission for 20 dormer houses at Dungourney.