The rental housing sector faces more challenges than nearly any other sector when it comes to improving efficiency and sustainability. Below, the RentLab team has assembled a wide range of resources to help our partner communities strengthen their efforts to make rental housing better.
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The impact and findings of data transparency policies
Energy disclosure requirements and other data transparency efforts have had varied impacts on building efficiency. Study findings are summarized in brief below.
Impacts on Energy Use
Portland, OR 2018 benchmarking policy summary report: benchmarked buildings have shown a 3.5% decrease in energy use per square foot since data was first reported, with some building types (grocery stores, strip malls) showing declines in energy use of more than 10 percent.
Seattle 2016 benchmarking policy summary report: Seattle likewise saw a decline in energy use per square foot of close to 4%, with some sectors seeing declines of 7 percent.
Relationship between Energy Use and Building Age
Earlier findings (also here) from Portland's program found that building age was not a clear determinant of energy performance. Seattle saw a similarly complex relationship between building age and efficiency (see here and here).
Rental efficiency programs and policies
Rental properties make up 50% or more of most large cities’ residential building stock, and are less likely to undergo efficiency upgrades since the person paying for the upgrades isn’t the person benefiting from the lower utility bills and increased thermal comfort. This paper describes the benefits of minimum efficiency standards for rentals, profiles the City of Boulder’s pioneering implementation of this policy approach, and describes how other cities can implement such a policy.
Rental Toolkit to guide implementation of minimum energy standards for rentals
Rental housing efficiency: research findings
Energy efficiency and its relationship to household income in multifamily rental housing: Multifamily rental housing expends 37% more energy per square foot than owner-occupied multifamily housing, 41% more than single-family renter-occupied homes, and 76% more than single-family detached owner-occupied homes. In 2009, multifamily rentals averaged 34% fewer energy efficiency features than the number found in other types of housing.
HomeRx: Health Benefits of Home Performance: Better Buildings Solutions Center
Preserving affordable housing via energy efficiency: Using market segmentation to identify opportunities for efficiency
Does green pay off? Based on an evaluation of LEED- and Energy-Star-certified commercial buildings, the authors conclude that green investments do pay off.