Permitting New Housing with Chapter 40B

Chapter 40B, the Commonwealth’s regional planning law, promotes responsible housing growth by creating a streamlined permitting process for eligible projects that utilize subsidized financing, and that meaningfully accommodate lower-income residents.

Since its passage in 1969, Chapter 40B has supported almost all affordable housing construction in Massachusetts outside of the Commonwealth’s largest cities. Approximately 70,000 total units have been produced under Chapter 40B, of which over 35,000 units are restricted to households making less than 80% of the area median income (AMI).

MassHousing is one of the state’s four subsidizing agencies responsible for administering development under Chapter 40B. MassHousing oversees projects financed by the Agency, as well as projects financed by the Federal Home Loan Bank of Boston, under the New England Fund (NEF) program through its private member banks.

40B Resources and Information

40B Homeownership

Are you interested in purchasing a home built under Chapter 40B? Do you own a 40B property and would like to sell, refinance or make improvements to your home?

40B Post-Construction

Find information, documents and resources related to cost certification, compliance monitoring, and affordability monitoring.

Multifamily Financing Available

MassHousing offers a variety of multifamily financing options to developers of affordable and mixed-income housing. Our expert lending team can cater a financing solution to help make your development vision a reality.