A 4500 year old dolmen in the middle of a housing estate in south Dublin

This Dolmen is located in Ballybrack in south County Dublin dates from approx 2500BC. It granite capstone has beautiful shiny quartz mixed through it. It measures 5 foot X 5 foot and probably weighs approx 12 tonnes. It would have been covered in a cairn of stones of which none survive. It is now located in the middle of a housing estate and is vulnerable to constant graffiti and being used as a fire pit and for the odd BBQ!