Northborough's Board of Health is gearing up for significant changes in housing regulations following the recent passage of the Affordable Homes Act, which has made accessory dwelling units (ADUs) a by-right initiative in residential zones across Massachusetts. This new legislation, effective since August, supersedes existing local bylaws, setting state-level restrictions on ADUs that can now be up to half the size of the primary dwelling or 900 square feet, whichever is smaller.

During a recent meeting, public health officials highlighted their role in ensuring that these new living spaces comply with Title 5 regulations and the state sanitary code. The Board is currently awaiting guidance from the Massachusetts Department of Environmental Protection (DEP) regarding septic system requirements for these units. Specifically, they are clarifying whether new septic systems for ADUs can be smaller than the existing minimum standards or if they must meet cumulative capacity requirements.

As Northborough prepares to implement these changes, the building and zoning departments are set to propose new regulations at the upcoming annual town meeting. These regulations aim to establish reasonable restrictions on ADUs while ensuring that public health standards are maintained. The Board of Health emphasized the importance of monitoring these developments, as they intersect with public health concerns related to sanitation and living conditions.

The Board's proactive approach reflects a commitment to balancing the need for affordable housing with the necessity of maintaining health and safety standards in the community. As more ADUs begin to emerge in Northborough, the Board is prepared to address any potential issues that may arise, ensuring that all new dwellings meet the required standards for habitation.