Blackrock has a station on the Dublin Area Rapid Transit line, or DART. It is a 15 minute ride to city centre from Blackrock Station. Dublin Bus also serves the area with multiple bus routes. This runs on the track that was built in 1834 as the Dublin-Kingstown railway. That railway revived Blackrock which had been in decline.
That railway line had a dramatic effect of the coastline of Blackrock. The Rock Road was once directly beside the sea, and the railway line was built about 50 meters from the coast, giving the impression that the trains were running on water. However, the intervening area soon became marshland, and the area between Williamstown and Blackrock became Blackrock Park. Lord Cloncurry of Maretimo and Sir Harcourt Lees of Blackrock House refused to allow the Railway company to build the line through their lands. They were persuaded with generous compensation as well as a private harbour (Vances Harbour) and numerous buildings built on their lands for them. These included the Cloncurry Towers bridge, a granite bridge over the railway tunnel, a gothic summer-house in the grounds of Blackrock House, and a doric bathing-temple in the grounds of Maretimo. Unfortunately in April 2004, the Doric Temple was badly vandalised and lost its portico. The Cloncurry Towers have been in disrepair for some years now, their windows are boarded up, the deck covered in corrugated iron, their chimneys (disguised as urns) removed and their far entrance demolished.

Blackrock (An Charraig Dhubh in Irish) is a suburb of the city of Dublin, in County Dublin, Ireland. It is situated 3 km north of Dún Laoghaire. Blackrock has service industries and computer programming industries.
Blackrock gets its name from the Black Rocks, which were located off shore in the shallow waters in the vicinity of Blackrock baths. At low tide, the remnants of these rocks may be seen opposite the north end of Idrone Terrace. These sandy shores were popular for bathing and the area's popularity as a resort peaked in 18th Century. Roque’s map of 1757 indicated that there were separate bathing places for men and women, the men’s bathing place is now buried in Blackrock Park (since the land between the shore and the offshore railway was reclaimed) and the women’s bathing place was in the vicinity of Blackrock baths. Numerous fine houses including Frescati, Lios an Uisce and Carysfort (some of which survive today) were built at this time in the vicinity of Blackrock and commanded fine sea views. A village known, as Newtown on the Strand was located between Blackrock and Seapoint until the 18th Century.


Blackrock street scene
There are many places of historical significance within the area. The childhood home of Lord Edward Fitzgerald Frescati House was here until 1983, when it was demolished as part of the completion of Roches Stores' new shopping centre. The end of Cross Avenue was the site of the assassination of Kevin O'Higgins, and the site Linden Convalescent Home where Eamon de Valera died. The building where Eamon De Valera died, Talbot Lodge, was illegally demolished in the early 1990s and replaced with a housing estate.
A college of education; several secondary schools, such as Rosemount College (run by Opus Dei), Sion Hill Dominican College, St. Andrew's College, Newpark School and Blackrock College; and a private clinic, Blackrock Clinic (in Williamstown). Newpark Music School, incorporating the acclaimed Newpark Jazz School, is also located here.