THRESHOLD Posted on June 10, 2015 by admin Mineral public space. Blurred limits between private and public. Agricultural garden. Imposing appearance yard. Fine graduation from public to private. No visible limit between public and private. The garage as a Gate. Tiny entrance in a blind wall. A gate to pass through. Small space that links between private space and public space. Sometimes called third space as it is between private and public, it allows a smooth transition between interiority and exteriority.