Looking at the changeset, I am confused. I added the house in the lower left corner of the orange rectangle that is showing. It is indeed a house and not a development.  If you have changed it to be a development, you are mistaken.

If you are referring to the orange rectangle, I'm unaware of what that is. Possibly something that was there before and my house addition joined into it by accident? I do not recall seeing it before.

Then again, it says below that I put in 10 nodes, and that appears correct for the house.