[Property Rights Expansionist]

Allow property owners greater liberty to develop and transfer their property.

(1) Single-family zoning often prohibits so-called “accessory dwelling units” (ADUs) or “granny flats” which potentially could add marginal but important housing supply. Efforts to allow these in Seattle are in the process of failing due to NIMBY opposition, while San Jose has allowed properties to be developed more fully with two houses on one standard lot.

(2) Minimum lot size requirements allow homeowners to have large back yards, but what if the owner would rather put a second house in the back (like in San Jose)? What if the owner would rather sell part of the back yard to someone who wants to build a tiny house? That size requirement undercuts the owner’s property rights.

(3) Unrelated occupancy restrictions make housing unaffordable to singles by limiting their ability to split rent among multiple individuals. These restrictions should be up to the property owner, while government occupancy standards should be the same whether or not individuals are related. e.g. Nashville and Lubbock restrict unrelated occupancy to three; I know of a college town that limit it to two.

In a tight rental market - as exists today in many areas - a marginal increase in supply can have a significant economic impact.

Poor people without property necessarily depend on the property rights of others. Relying on government as the source of property rights seldom ends well for the poor.

And it might not end well for the middle class as well, if Kelo stands.

[KenD]

Another way to look at this is that "rights" come from God, or if you prefer, "rights" are those things we have simply because were alive.
Since we "allow" government to control land use, then property ownership has been relegated to being a "privilege", at least in the eyes of those that favor government.
There is a razor sharp line that we have to also consider, that being that one persons rights end where another persons begin.
Let's say, as an example, that I've just committed a significant amount of my earthly treasure to purchase a nice house in a nice neighborhood. If someone exercising their right to add whatever additional buildings they wished to add did so in a way that reduced the value of my property, they would have then trampled on my rights as a property owner.
Who arbitrates that conflict? If the answer is government, then the one-size-fits-all nature of government would eventually lead to some sort of zoning restrictions.
I suppose to sum up my reaction to your proposals would be that we have to keep in mind everyone's "rights" when we decide to make sweeping changes to "the way things are done now". I would certainly support severely limiting the use of eminent domain and I think property taxes should NOT be allowed, but when we "relax" zoning standards we need to be aware that doing so not only provides additional liberty to some property owners but it may also financially damage others.
Just so you know, I'm currently working my way around North Carolina's watershed laws in splitting my lot so that someone else can build on the ½ of my property that I don't really intend to use so I'm VERY aware of the nature of zoning rules and town requirements and the desire to make all of that bureaucracy go away.