Restoration work has begun on one of the last "untouched" buildings on Dublin's quays.

Dublin Civic Trust says the work at 18 Ormond Quay is the "most challenging and transformative" building project its embarked on since the Trust's foundation in 1992.

It describes the building - a designated Protected Structure sited on the north Liffey quays - as "a handsome example of a Liffey-side merchant house embedded with layers of evolution dating from the 17th century to the 20th century".

Over the centuries, it has been home to occupants as varied as hotels and gunsmiths, taverns and grocers.

The building's final occupants were Watts Brothers - hunting, shooting and fishing purveyors - who closed in 2000.

Two interconnected buildings stand over four storeys.

The riverfront house dates to 1842-43 and the rear building dates to the 1760s.

There is a rare arcaded Georgian shopfront composed from cut granite which is likely to date to 1789.

The Trust says both buildings require extensive structural stabilisation and careful conservation, although the initial work will concentrate on the front building.

The project aims to restore residential use to the upper floors and a traditional shop below.

The Trust says it is relying on public and philanthropic support to see the project to completion.