Of the group of people available to vote in the city, homeonwners will have a higher participation than renters that can vote. Becuse the latter need to match their residency with the vote, and even then, they dont know as much of the issue as the local, and even then, they dont have the same interest. (the time horizon of a renter could be 2 years, of a landlord its decades).

Thats why I devised that mental exercise: if you gathered up all the poeple that lived over 1 year in san francisco in the last 10 years, which one do you think is in the majority? pro-supply, con-supply?