It claims to be Europe’s first sustainable hotel and it has just opened in Harcourt Street in Dublin 

The new Iveagh Garden Hotel will source all its energy needs from an underground river running 50-metres beneath the hotel.

Turbines will convert the power generated which will be sufficient to meet the hotel’s energy requirements.

The heating, plumbing, cooling and hot water systems have all been removed and replaced with a new natural energy system.

Internally Iveagh Garden Hotel has undergone a complete refurbishment whilst retaining the buildings original Georgian façade.

Bedrooms facing the street have triple-glazed windows to both retain heat and to lock out the noise from the busy street below.

Iveagh Garden Hotel has 150 bedrooms which will be extended to 161 bedrooms next year.

The hotel has a bistro-style restaurant serving Irish-sourced produce as much as possible. The hotel also has an outdoor terrace overlooking the gardens.

Iveagh Garden Hotel is around a four-minute walk from St. Stephen's Green in Dublin.