Redevelopment An Bord Pleanála has vetoed a plan by Frank Cruess-Callaghan to build 40 apartments in three curved blocks at Ferndene, on Deansgrange Road in Blackrock, Co Dublin.
An Bord Pleanála's decision to refuse permission overturns planning permission previously granted by Dún Laoghaire Rathdown County Council for the development.
The board ruled that the scheme would constitute overdevelopment of the site as a result of "density, form, height and massing and proximity to site boundaries" and would "seriously injure property in the vicinity".
Eight individuals and residents' groups had appealed the scheme to An Bord Pleanála.
One local in his appeal had called the scheme's design "objectionable", of a "Torremolinos philosophy" with "sweeping ski-slope roofs", while a neighbouring couple said the development goes against the spirit of an agreement made some years ago.
The Cruess-Callaghans put the house on the market over three years ago but withdrew it when it failed to reach the guide of €3.81m. Ferndene, with four bedrooms and three reception rooms, sits on 1.4 acres is close to the junction of Stradbrook Road.