EIR (Environmental Impact Report)

Key Lot Definition

An EIR (Environmental Impact Report) is a detailed, in-depth analysis of the consequences that a real estate development project might have on the environment in and around the target property.


An environmental impact report (EIR), is required by the 1969 National Environmental Policy Act (NEPA) for certain actions “significantly affecting the quality of the human environment”.

EIR is a helpful tool used during real estate development decision making. It outlines the various environmental effects, both positive and negative, of the proposed development project.

An EIR is typically broken down in several sections covering the following general areas:

  1. A statement describing the Proposed Action.
  2. A description of the environment that will be impacted by the Proposed Action.
  3. Suggested Alternatives to the Proposed Action.
  4. An analysis of the impacts of each Suggested Alternative.


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