Houses and terraces

I have created 12 nodes that describe 5 houses in a terrace. Is it possible to link the four outer nodes as a single entity to describe the terraced property as a whole?

Hello Chris,
It can easily be done in JOSM. Map the outline, tag it (Name/Date, whatever). Use terracer plugin (house numbers, how many ect, street name), making sure to keep un-checked the “Delete Outline Way” box.
I see however you use Potlatch and iD editors, I’ve no idea about these but I would think so somehow.
Regards Bernard