[3] In 1929, the foundation committee developing the Lake Karrinyup Country Club golf course opted to change the spelling.

About one-third of Karrinyup's land area is reserve or bushland, or part of the suburb's two golf courses.

Karrinyup Road links Marmion Avenue and West Coast Highway to Mitchell Freeway through the suburb.

[6] Most of the houses in Karrinyup are relatively modern, though the prolonged period of development has resulted in a range of styles from various eras.

A major renovation is expected to be finished in 2021, with plans for apartment towers in the north-east of the complex.