Best place in SoCal (south of OC) to SFH house hack?

[Ali Rafie]

What are some of the best neighborhoods to look at for a SFH house hack? Looking to spend $700-$900k w/ a conventional loan. Mainly interested in the area between San Diego (including San Diego) to just south of Irvine. I've looked at properties in Escondido, San Marcos, and San Diego.

My criteria: 

- 5+ bed, 2.5+ bath

- C+ neighborhood

- Decent amount of young people (I'm in my mid 20's)

Anything else I should consider?