I live nearby to the Onagh portal tomb, and have visited it a few times lately. I should point out though that a house is now being constructed on the property where the tomb is, which will probably make it hard to access the site in future.
At this point in time only the foundations are laid for the house, and it has been weeks since I’ve seen any workers onsite, but always remember to ask permission if there is a residence nearby, or people working on the property.
It’s a great site though, I hope to add some pics soon.
Hopefully, the new owners of the property will seek advice and carefully clear the portal tomb. The foundations have been down for a long time - I'd imagined that it would have been completed by now.
I passed by recently and took a few shots with me phone. The tomb is fenced off in its own enclosure. In fact you can see much more of it due to vegetation clearance.
It's quite possible that construction has been halted due to economic circumstances, though there has been a lot more groundwork done than on my previous visits. I didn't enter the site so i don't know how much care was given during the clearance, but fencing it off is heartening.