AZ HB2319

Establishes that private property rights and their regulation are matters of statewide concern, preempting further municipal regulation on individually owned single-family lots.

Prohibits municipalities from adopting regulations that limit building materials (unless violating building codes), impose aesthetic design requirements violating the First Amendment, or restrict use and placement of personal property.

Prevents municipalities from limiting food production on property, requiring parking design specifications, or mandating features property owners cannot afford or do not want.

Exempts regulations that are objective and strictly necessary to protect public health and safety or prevent significant externalities (noise, light, air pollution) through the least restrictive means.

Defines "objective" as involving no personal judgment and being uniformly verifiable by external benchmarks, and "significant externality" as nontrivial negative impacts beyond property lines, excluding subjective preferences.