[MBCook]

I didn’t know that. Well, if it meets whatever HUD/the courts’ threshold is for something that’s too discriminatory then maybe that’s off the list.

I know that pet friendly and non-pet friendly housing exists, so there must be some legal basis.

But if the current legal standard meant that it would be illegal to advertise to (or away from) pet owners then yes, I would expect that FB would have to remove those options for housing ads.

Guess that wasn’t the clear example I was hoping for.

[quotemstr]

Is a "no pets" policy illegal housing discrimination? Why or why not?

A "no pets" policy, on its face, would have a disparate impact on different arms of a protected group, and so, on its face, should be illegal. I know that "no pets" policies tolerated at this point.

What I want to know is how you or anyone else can justify a "no pets" policy considering the protected group issue I raised above. Is the "no pets" policy just an unprincipled exception [1]?

I see no explanation for allowing "no pets" policies other than "yeah, 'no pets' amounts to illegal discrimination, but everyone does it, so it's okay". That's not a good basis on which to organize a society. Why or why not shouldn't people make another unprincipled exception for ad targeting?

[1] http://slatestarcodex.com/2015/03/04/a-series-of-unprinciple...

[MBCook]

Again, I don’t know the actual reason, just that it’s clearly legal.

Many people are very allergic to pets or scared of them and won’t live in a building/complex if there are animals there. If you’re a landlord and you allow pets you also have to deal with any possible damage they may do to your property, even though you can make the renter reimburse you for that.

It may be that because of those factors courts have determined that it’s perfectly reasonable for landlords to choose not to allow pets no matter what effect that may have on the number of people of different races who apply to their properties.