“Luminous” building?

Dezeen admires a “luminous” white triplex in what it calls “Rosemont‑La Petite‑Patrie, an up‑and‑coming neighbourhood in Montreal” (up and coming to what?). The windows in this thing remind me of Douglas Adams’ description of Arthur Dent’s house having “four windows set in the front of a size and proportion which more or less exactly failed to please the eye.”