Property Not as Land Registered

Interesting in purchasing house for sale marked as 1 on picture. However on land charts even eircode one there looks like a public green/walkway between 2 end of terrace house. However not there anymore looks like both houses at some stage took over a portion of the alley each and extended side portion of house. Picture attached the yellow line is a laneway at back where cars have access no issue with that but seems at some stage there should of been through walk way from from of house to that lane to next estate. Another one further down the road looks gone aswell like neighbours did same thing

Is this a council estate ? Sometimes such alleyways are blocked off for anti social reasons ...

Can you see it on the maps on Land Direct? Does the lane have a separate folio number?

I wouldn't chance buying that without the title being updated to what's on the ground.