The City of Chilliwack are very quick to demolition vacant properties these days, they are very quickly occupied by squatters and/or the homeless and don't last very long after that.
This spot on the way to Cultus was decent about a year ago, was quickly occupied by squatters, and was demolished a few months ago. I know there is at least one vacant home still standing in the Cultus area.
This house is still standing and vacant.
This house was still around in April, might be gone now, haven't checked recently.
There aren't many abandonments in Chilliwack besides the occasional vacant home or business, anything of historical interest is either long demolished or still active. The old Thurston prison was fantastic but it's long gone now. I haven't seen the old military base vacant for years, as far as I know it is very active and still in use but I could be wrong, I hope I am.
I won't give out location details but they're out there. It's hard to cover a lot of ground without a car. You'll have more luck on the outskirts of town unless you're into exploring active locations. Vacant properties outside of the downtown core in Rosedale, Vedder, Cultus, Popkum, Greendale, Fairfield, and Ryder Lake last longer before demolition.