Compiling national outdoor air pollution data from across the government and other expert sources, this report shows the extent of the harm caused to people and the environment from fossil fuel burning equipment in homes and buildings, the disproportionate impact this pollution has on environmental justice communities and other vulnerable demographic groups, and how the use of methane gas in buildings is connected to the broader system of methane gas extraction and distribution.

Advanced Energy Design Guide for Multifamily Buildings-Achieving Zero Energy (AEDG) is the third in the AEDG zero energy guide series. The design guide outlines strategies for achieving energy targets such as setting measurable goals, hiring design teams committed to those goals, using simulation throughout the design and construction processes and being aware of how process decisions affect energy usage. In this edition, content has been included on renovation and resiliency along with expanded guidance on hot water and high load in multifamily buildings.

This blog post details the U.S. Department of Energy's (DOE) finalization of Part 1 of a national zero emissions building definition, emphasizing operational carbon emissions. This definition outlines three key criteria for buildings: energy efficiency, no on-site emissions, and the use of all-clean power sources. It aims to enhance public health, lower energy costs, and protect the climate. The post highlights the positive industry and advocate reactions, notes the importance of addressing embodied carbon in future updates, and explains how new and retrofitted homes can meet the definition. It emphasizes the economic feasibility and investment potential in zero-emission buildings and outlines steps for builders to achieve compliance.

New York State and New York City have enacted climate legislation with ambitious energy efficiency and greenhouse gas reduction targets. New York State’s Climate Leadership and Community Protection Act (CLCPA) and New York City’s Local Law 97 (LL97) impact various housing sector stakeholders, including owners, developers, renters, and financiers. Compliance will require significant investments over the next two decades, especially for high-emission buildings. While market-rate properties can finance upgrades through operating income or debt, affordable housing faces financial challenges.

Recommendations in this paper focus on strategies to make compliance more feasible and accelerate decarbonization for all housing sectors.

The Massachusetts Decarbonization Hub helps owners of affordable multifamily housing interested in reducing carbon emissions from their Massachusetts properties navigate the complicated landscape of decarbonization. Created in partnership with LISC Boston and RMI, this site provides quick access to guides, resources, and funding opportunities currently available to support these projects. The Hub outlines some key steps to decarbonization, connects owners with technical providers, directs owners to the available incentive and grant funding programs, and showcases case studies of recent deep energy retrofit projects for inspiration.

State energy offices have expertise in energy and building science that can inform the technical specifications for a project, while state housing finance agencies have deep relationships with affordable housing developers and know the process required to update affordable buildings. State energy offices and state housing finance agencies can leverage their unique expertise and collaborate to meet energy efficiency and beneficial electrification goals.

National Housing Trust is offering this toolkit as an information source for HFAs and owners and developers seeking resources through the Inflation Reduction Act. The funding opportunities, case studies and reports, resident engagement tools and other resources listed here will enable you to invest in the affordable housing facilities that you develop and manage.

This case study provides information to states, building owners, developers, and other stakeholders who are considering combining IRA Home Efficiency Rebates Program funds and LIHTC equity.

To better understand the barriers limiting the decarbonization of affordable housing beyond what energy and cost analyses could provide, NRDC commissioned an Arup-authored study of energy retrofits of affordable multi-family housing buildings within the Los Angeles metropolitan area. The study examined five real-world examples to expose obstacles, inefficiencies, and opportunities encountered during retrofit processes. Six key challenge areas emerged that must be addressed to enable decarbonization of affordable housing at scale: carbon reduction strategies, financing, implementation, policy, technical expertise, and tenant impact.

This report looks at the existing research on climate and housing in the U.S, in two key areas: how housing decarbonization and production strategies can reduce pollution to mitigate climate change, and how climate change impacts renters, homeowners, and the broader housing industry. The paper also identifies key research gaps where more evidence would help policymakers to navigate the tensions between different policy approaches.