Some of the tweets and inferences by Lauren rub me the wrong way. Upzoning and allowing for more housing options will harm affordability, but somehow artificially limiting the amount of housing that can be built by only allowing for single family homes won't?
It's a tired argument that is always trotted out in these discussions. It seems to conflate the idea of affordability with the ability to afford a single family home. Yes, the price of land will go up, as will the prices of existing single family homes on that land. But that would also happen to an extent without upzoning. Limiting what can be built in these areas ensures that only those that can afford a single family home can live there.
What housing choice allows is more housing to be built on that land, giving options for different unit sizes and price points. Yes, they will likely be more money per sf of land than currently, but it will still allow for cheaper options overall.