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We collect, interpret
& share data

to improve state policy, foster effective community conversations and ensure that we meet our housing needs throughout Massachusetts.

The Data Feed

Our latest analyses of housing stats, migration trends, other related data and policy topics as well as anything we find interesting from our fellow data geeks.


DataTown is the Center for Housing Data’s new interactive website. DataTown compiles community-level information for all 351 Massachusetts cities and towns, and visualizes that data in graphics and charts that are easy to understand, print out and bring to a community discussion. DataTown allows you to download the underlying data as well. And we've just added a new feature - the ability to create graphics that compare communities! We built DataTown for you so check it out, and email us with what you loved and how we can make it better.

TODEX & Residensity

TODEX is short for Transit-Oriented Development Explorer. Developed in 2019, this tool allows you to review densities at all 261 Greater Boston transit stations and picture the great opportunity we have to build more housing near transit. An accompanying research brief estimates that 250,000 more housing units could be added if we boosted the median density around all stations from 6.2 to 10 homes per acre. In 2023, we expanded on the TODEX methodolgy by launching Residensity. This allows users for the first time to do analysis for any parcel in Massachusetts by individual property or by neighborhood.

Policy Archive

To foster a deeper understanding of housing and its relationship to economic growth, we maintain a library of resources which including our own reports, recent news releases and related studies and articles on housing and growth from around the U.S.

Policy brief 2: Analysis shows additional strategies needed to connect tenants with rent assistance

More than two months after the end of the federal eviction moratorium, data indicate that many Massachusetts renters remain behind on rent and fear being evicted from their homes. This latest brief explores differences in eviction filing rates across Massachusetts and evaluates the impact of rent relief programs, local eviction moratoria,and local support on regional eviction filing rates.

Contact Us

Calandra Clark, Director of Policy

Calandra Clark

Director of Policy

Calandra (Callie) Clark joined MHP’s public affairs staff in 2008 and worked in policy analysis, research, messaging and communication strategy. In early 2017 she became Co-Director of MHP’s newly created Center for Housing Data and in 2019 became the Director of Policy.

Callie has extensive experience in policy analysis and web strategy and in crafting presentations for legislators, local public officials and other public audiences. She has a bachelor’s degree in international development from Clark University and a master’s degree in urban and regional policy from Northeastern University.

| 857-317-8524

Tom Hopper, Director of Research & Analytics

Tom Hopper

Director of Research & Analytics

Tom Hopper joined MHP in 2006 and worked in risk management, operations and analytical development over the next decade. In early 2017 he became Co-Director of MHP’s newly created Center for Housing Data and in 2019 became Director of Research & Analytics.

Tom has developed database systems, designed metrics, and created data tools and analytical reports that provide insight into project financial performance, credit quality, and risk management. He has led public policy research efforts on topics such as transit-oriented development, housing production, land use, gentrification and housing costs. Tom has a bachelor’s degree in economics, a master’s degree in city planning from Boston University, and a master’s degree in urban informatics from Northeastern University.

| 857-317-8561

Contributors: Matija Janković, Dana LeWinter and Clark Ziegler.

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