Another second order effect is the reduced supply of family sized units. Many 3+ bedroom units are occupied by older couples and single people who raised their

Another second order effect is the reduced supply of family sized units. Many 3+ bedroom units are occupied by older couples and single people who raised their kids there and no longer need the space but would find it much more expensive to downsize. This drives families out of the city (among other things). Prop. 13 solves this by allowing people older than 55 to transfer their property tax break to a smaller house.