Hidden amid the industrial estate's boxy warehouses, its neighbours a dealer in fridge parts and a door-maker ("Divine Doors"), the entrance to the Christ Ambassador church is at the end of a small, unmarked alleyway that betrays nothing of the grandeur within.
Inside the large hall are almost 200 chairs, neatly aligned and facing a raised stage with a glass lectern at its centre and a few bouquets of flowers at either side. The walls are painted in cream and gold. The choir area is a tangle of microphones and drums and a row of carry cots is propped against the wall to the left.
This Pentecostal church in Glasnevin in Dublin has a committed membership of more than 500 members now, says Pastor Lawrence Oyetunji. He runs a schedule of daily activities, from classes on how to succeed in business on Monday mornings to Bible studies on a Wednesday evening. There are two Sunday services and a night vigil between midnight and 2am on Saturdays which draws a crowd of more than 350.
Above all, the church attends to the spiritual needs of its mainly African congregation but, as Pastor Lawrence explains, his role is also that of counsellor and social worker for the "family" of members.
Since leaving his job as a driver with Dublin Bus last year, he gives all his time to his pastoral work - mediating between rowing couples, helping recent arrivals through the thicket of state bureaucracy and offering his ear to those who need it.
"People know, number one, that their spiritual needs are being met, but when they have a problem, they can come to the pastor. People call me all the time, until 3am sometimes, if they have a problem," he says.
In 2003, the Irish Council of Churches estimated the number of African immigrants in what it called "Black Majority Churches" to be more than 10,000. A year later the moderator of the Presbyterian Church in Ireland, Dr Ivan McKay, put the number at 30,000.
The churches, most of which are registered as companies, have arisen mainly within migrant communities themselves. Some adherents are born-again Christians on arrival; others not Christian at all. "At least 5-10 per cent are Muslims that converted," says Pastor Lawrence of his own church.
Last year's census showed that migration is having a major impact on religious trends across the State. Due in part to recent arrivals from countries such as Poland, Brazil and the Philippines, the number of Catholics increased by 218,000 between 2002 and 2006, albeit with an overall fall in its share from 88.4 per cent of all religious followers to 86.8 per cent.
Migrants have also helped to stem the seemingly irreversible decline of southern Protestantism, with the census showing the Church of Ireland's numbers to have grown by some 10,000 in the past five years, to 126,000.
The Muslim population has doubled since 2002, to 32,500, and Islam is now the third largest religious group in the country - there are now more Muslims than Presbyterians (23,500) or Methodists (12,000).
The biggest increase of all was recorded among members of the Orthodox community, which doubled in size to 20,800 between 2002 and 2004, thanks mainly to newcomers from central and eastern Europe.
The Catholic Church has more than 100 foreign-language services in place across Ireland and, according to Fr Alan Hilliard of the Irish Bishops' Conference, many seek out the church as a social as well as a religious space.
"A very interesting thing that happens is that when people put on a Mass or gathering for people from a different country, they provide a space afterwards for people to gather. The Irish just want Mass - in and out. But people are coming not just for the religious event but also for the social and the interactive.
"It touches the deepest level of self, in terms of their identity - where you can pray with people and then you socialise with them. Remember, if you're a migrant, the church is a universal symbol. When you're away from home, you create symbols, you create things that are familiar and one of those things is the church, especially if you're a Catholic."
Pious migrants have injected a new vibrancy into parishes that had been in decline for decades, Fr Hilliard agrees, but the same process has been taking place elsewhere for centuries.
"In England, for instance, after Catholicism was outlawed, the way it grew again was through the migrant chaplains - the French chaplains, the Spanish chaplains - who said Mass in the embassies. In Australia, it is an immigrant church and America has been enriched by immigrants. It is a global phenomenon in the world of migration."