The ESB is to seek planning permission for its Dublin headquarters, which would see its Fitzwilliam St building get a Georgian-inspired redesign.

The company said it had been considering its options for the property in recent years, as the current offices are inefficient and expensive to maintain.

The ESB said it has decided its best option was to undertake a redevelopment of the offices, using sustainable technologies and design to half the cost of running the building.

The offices would be self-financed through these savings, it said, while staying on the site would avoid the rental cost it would incur if they relocated.

The new building’s design, by Grafton Architects and O’Mahony Pike Architects, “re-interprets but at the same time respects the surrounding architectural heritage”, the ESB said.

A large number of early 19th century townhouses were controversially demolished in 1965 to facilitate the current ESB office on Fitzwilliam St, breaking the city’s ‘Georgian Mile’ in the process.

Restoring the Georgian style of architecture to all buildings on Fitzwilliam St is currently part of the Dublin City Development Plan.

The ESB said it would move ahead with the planning process in the near future, with construction possibly commencing in 2016.