Limitations of data collection mean many questions about housing consumption simply cannot be answered.
"Housing demographers are often frustrated by data that range from inconsistent to totally unavailable when attempting to research demographic and housing trends. The inconsistencies between various data sources on estimates of household numbers and household growth, vacancy rates, and homeownership rates are well documented and continue to be dissected and discussed, but there are other metrics that have been even more elusive to pin down that would help enormously to better understand today’s demographic/economic trends and their housing implications," according to a post by George Masnick for the Harvard Joint Center for Housing Studies.
Masnick notes two "broad areas" of housing consumption that have proven particularly obstinate in resisting quantification: "The first concerns the doubling up of generations living in a single residence. The second is the opposite – when a single household lives in more than one housing unit on a regular basis."
The article goes on to detail more about the many avenues of research available if better data available were available in these areas. Also mentioned are the limitations of the current study mechanisms that begin to scratch the surface of the important questions still out of the reach of researchers.
FULL STORY: For Housing Demographers It’s All About the Data – But Sometimes the Data Come Up Woefully Short

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?
As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

The Five Most-Changed American Cities
A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

San Diego Adopts First Mobility Master Plan
The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

Housing, Supportive Service Providers Brace for Federal Cuts
Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement
An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
New York City School Construction Authority
Village of Glen Ellyn
Central Transportation Planning Staff/Boston Region MPO
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions