All of them look identical from the outside, a perfectly flush exterior. However, the inside aesthetic and the frame depth is how they differ.
Residence 7 = Fully flush, modern and versatile. 75mm front to back, 7 chambers
Residence 9 = True timber alternative, decorative + heritage aesthetic. 100mm front to back,
9 chambers
Residence² = Aluminium alternative, square and contemporary aesthetic. 100mm front to
back, 9 chambers