Sandymount is an affluent coastal suburb in the Dublin 4 district on the Southside of Dublin in Ireland. Sandymount is located between 3 and 4 km south-east of Dublin's city centre. At the northern end it begins where Newbridge Avenue meets Herbert Road, running to Church Avenue at the coast, west along the DART rail line, and south to Merrion Gates. Sandymount Promenade runs along the coast road (Strand Road) from Sandymount Strand, down to Merrion Gates. It lies a little south of the Great South Wall in Dublin Bay. The River Dodder passes nearby to the west, and three streams, the Elm Park, Nutley and Trimleston, come to the coast to the south. In the past, the Nutley Stream came to the coast in what is now Sandymount, and severe flooding occurred on the old course in 1963.

Sandymount Strand is a large strand on the east coast of Ireland, adjacent to the village and suburb of Sandymount. It is part of South Bull - a major component of the south side of Dublin Bay, and part of the Dublin Bay Biosphere Reserve. South Bull is a mirror to the North Bull sandbank, which grew into North Bull Island. Sandymount Strand is a popular place for locals to take a walk. People, and in the past - there is no longer public vehicular access - cars, have been occasionally trapped by the incoming tide. A large inlet of water that remains even at low tide is known locally as "Cockle Lake".

In October major road works began on the Strand Road in Sandymount with a single lane closure in place until late spring 2023 or later.

Uisce Éireann in partnership with Dublin City Council is replacing a critical trunk water main on Beach Road and Strand Road, Sandymount, Dublin to provide a more reliable water supply for east Dublin, to improve supply resilience across the city and reduce high levels of leakage. The arterial water main along Beach Road/Strand Road, Sandymount, located between Merrion Gates and Ringsend Park, is a 3.15km strategic transfer main servicing the eastern area of Dublin City. Due to its age and fragile nature, this 600mm water main is currently being operated at a greatly reduced capacity and is prone to frequent bursts and high levels of leakage.

The works to rehabilitate this critical trunk water main are planned using engineering techniques which greatly reduce the project duration, truck movements, noise and limit the overall impact of the works on the local community. Works are taking place on Beach Road and Strand Road from Sean Moore Road to Merrion Gates and will be delivered in phases. Works commenced at the Ringsend Park end of the project at the Sean Moore Road in late September 2022. Works have now progressed to the southbound carriageway on Beach Road/Strand Road.

The works are being carried out on behalf of Uisce Éireann by GMC Utilities Ltd and are expected to be completed in Summer 2023.