Welcome to the Green Lease Library, a centralized site for commercial green leasing resources 

Guidance & Case Studies

How to develop, negotiate and implement green leases

Click Here

Government Leasing

Public sector green leasing resources

Click Here


Examples of green leasing outside of the United States

Click Here

Landlord-Tenant Energy Partnership

Get help unlocking energy savings in leased space

Click Here

The Green Lease Leaders recognition program was created with support from the U.S. Department of Energy and other Green Lease Library and contributing organizations. For more information on the program, visit www.greenleaseleaders.com.

What are Green Leases?

Green leases (also known as aligned leases, high performance leases, or energy efficient leases) align the financial and energy incentives of building owners and tenants so they can work together to save money, conserve resources, and ensure the efficient operation of buildings.

Why Are Green Leases Important?

Building leases lay out how energy costs are divided between tenants and owners. Often, these leases are not structured in a way that promotes energy savings. Under most gross leases, for example, tenants have no incentive to save energy in their leased premises because energy costs are based on tenant square footage. Under most net leases, building owners have no incentive to invest in efficiency for their building systems because the operating expenses are passed through to tenants, who would therefore receive all of the energy cost savings.

Green leases promote energy efficiency by creating lease structures which equitably align the costs and benefits of efficiency investments between building owners and tenants.

Real Success Stories

As a participant in the Department of Energy's Better Buildings Challenge, the Tower Companies implemented green leases throughout their portfolio. David Borchardt, Chief Sustainability Officer of Tower Companies, describes the impact green leases have had in the below video.

For more information about the Tower Companies' green lease strategy,click here.

About the Green Lease Library

This website is the result of a collaboration among several stakeholders in the green leasing community (see below), and is maintained by the Institute for Market Transformation (IMT).  The website's purpose is to consolidate green leasing resources to provide a one-stop-shop for all audience types-- from building owners and tenants to lawyers and building raters.  The green lease library is organized by resource type, and resources are tagged by relevance to audience and building types.

Note: Any opinions expressed by the webinar speakers or in materials found in the library are not representative of the opinions of the partner organizations