A project categorized as a “40B” refers to Chapter 40B of the Massachusetts General Laws, a state statute which enables local Zoning Boards of Appeals to approve affordable housing developments under flexible rules if at least 20-25% of the units have long-term affordability restrictions. These projects are also known as Comprehensive Permits.
Chapter 40B was enacted in 1969 to help address the shortage of affordable housing statewide by reducing unnecessary barriers created by local approval processes, local zoning, and other restrictions. The goal of Chapter 40B is to encourage the production of affordable housing in all cities and towns throughout the Commonwealth. The standard is for communities to provide a minimum of 10% of their housing inventory as affordable. Communities that have NOT met the 10% requirement are subject to 40B proposals which can waive local zoning requirements and apply more flexible zoning standards than non-40B projects.
To qualify for Chapter 40B, a development proposal must first be approved under a state or federal housing program, such as MassHousing, MassDevelopment, the Department of Housing and Community Development, or the U.S. Department of Housing and Urban Development. At least 25% of the units must be affordable to lower income households who earn no more than 80% of the area median income (Alternatively, for rental housing, the project can provide 20% of the units to households below 50% of median income.)
For more info on 40B projects in Brookline, visit our 40B page.