KanjiJLPT N2
Eaves

flats, counter for houses, eaves

Mnemonic

You pull your car right up against the building so it stays dry under the eaves. The overhanging roof edge is so generous it shelters the entire car — not a single raindrop touches it while a storm pounds the street beyond the eaves.
Additional thoughts
Picture the classic image: a car tucked snugly beneath a wide traditional Japanese roof overhang, perfectly dry while rain sheets down just past the edge. Car + Dry = Eaves.
Quick recall
A car kept dry beneath the eaves.

Details

The keyword for 軒 is eaves. This kanji refers to the overhanging edge of a roof, the part that extends beyond the walls of a building to provide shelter from rain and sun. By extension, it is also used as a counter for houses and buildings, since the eaves are a defining architectural feature of traditional Japanese structures. It evokes the image of a sheltered space beneath the roof's edge, a familiar sight in Japanese residential architecture.
On'yomi
けん
Kun'yomi
のき