Benefits Toolkit

National Stormwater Management Calculator

Center for Neighborhood Technology

This online tool compares predevelopment, conventional development, and development with Green Stormwater BMPs for a single site. Results include changes in total runoff volume, pervious area, and life cycle costs. Inputs include: site size, predevelopment land cover, post development land cover, and parameters for…


Stormwater management, Operations & maintenance savings, Bioretention, Green roof, Native plants, Permeable paving, Rainwater harvesting, Trees


Cornell Lab of Ornithology

eBird is a database of citizen science bird observations that allows for tracking of bird species distribution and abundance worldwide. The online database is freely accessible and made possible by millions of bird observers across the world uploading information from field observations. The only required input is…


Populations & species richness

Recycling and Reusing Landscape Waste Cost Calculator

U.S. Environmental Protection Agency

This Microsoft Excel-based calculator estimates the cost and environmental benefits of four scenarios for handling hardscape and landscape wastes (concrete and asphalt, brick, lumber, and yard waste): (1) Reusing all waste possible on-site, recycling all waste possible that cannot be reused, and disposing of waste…


Water conservation, Energy use, Air quality, Carbon sequestration & avoidance, Waste reduction, Operations & maintenance savings, Other economic, Reused/recycled materials

Construction Carbon Calculator

Lady Bird Johnson Wildflower Center and Mithun

This tool estimates the net embodied carbon of a project’s structures and site. The measurements account for building materials, processes and carbon released due to ecosystem degradation or sequestered through landscape installation or restoration. Landscape inputs are ecoregion, area and type of existing vegetation…


Carbon sequestration & avoidance

Resource Conserving Landscaping Cost Calculator

U.S. Environmental Protection Agency

This Microsoft Excel-based calculator compares the cost of converting conventional landscapes to landscapes that require less irrigation and produce less waste. Inputs include: configuration of the current landscape (proportion that is comprised of flowers, turf, shrubs, and ground cover), configuration of landscape…


Water conservation, Operations & maintenance savings, Construction cost savings, Native plants

Help build the LPS: Find out how to submit a case study and other ways to contribute.