If you follow google to the supplied postcode it brings you to Mangravet Avenue and a row of shops on your right hand side. Between the green Londis and the blue and red kebab shop there is a driveway with metal barriers either side. This leads to a car park for the graveyard. 

St. Hillary’s Hall is off of this car park. 

The driveway is wide and there is parking at the end. Follow the driveway to the end and Harmony is the large old building on the right hand side, behind the long black fence.