The patch of ground where Beechpark Avenue meets Oscar Traynor Road, at the junction of Oltown Lane and Coolock Lane, was long known locally as the Chapel Bank, a name that points quietly back to a religious building that once stood somewhere in this part of Coolock village.

According to Appleyard, writing in 1985, there was a chapel in Coolock village around 1710, and it occupied the site that later became St. Brendan's Church. That date places it in a complicated period for Catholic worship in Ireland, when the Penal Laws restricted public religious practice and chapels tended to be modest, inconspicuous structures rather than anything built to announce itself. The fact that the surrounding ground retained the name Chapel Bank into living memory suggests the building made enough of an impression on the local landscape, or local consciousness, to leave a trace even after the structure itself had gone.

The site today is entirely ordinary in appearance, absorbed into the road network of a built-up suburb, and there is nothing to mark the connection to the early eighteenth-century chapel. What makes it worth knowing about is precisely that gap between appearance and history. The name Chapel Bank is the only evidence a casual visitor is likely to encounter, and even that is not signposted. Those familiar with older Dublin street names and field names may find it a useful reference point when tracing the pre-development layout of the village. The location is straightforward to find on foot or by public transport, sitting along Oscar Traynor Road, but arriving with a local map that shows the older lane names gives the junction considerably more meaning.