The issue with housing prices is that there are a lot of government policies that have the (intentional or unintentional) effect of increasing housing prices. Some of them are as follows:
- Making mortgage interest tax deductible
- Special tax treatment for the sale of a primary residence
- Laws limiting how many people can cohabitate in one building, or similar laws that enforce this more softly through limits on street parking.
- Rent control laws which suppress the price of rental units, limiting the incentive for landlords to build new units.
- Laws that limit the construction (or add extra costs/requirements) to projects that would add more residential units.
- The utter failure of highway infrastructure during rush hour, which adds hours of commute time for short distance travel, drastically increasing the price of residences that do not require a highway commute.
- The failure of municipalities to provide adequate and affordable parking and public transit, adding inconvenience to many neighborhoods which drives up prices in others.
- The failure of law enforcement to create a safe environment in many neighborhoods that offer more affordable housing, leading to increased crime and under-investment in improving and expanding areas that would otherwise be highly desirable for residences.
- Laws that create building code requirements that are not based on sound engineering or safety principles but which create lucrative contracts for certain professions in the building trade... These increase the cost of new construction and make many retrofitting/repurposing projects impossible.
There are many, many more.