Waltham follows Massachusetts state law allowing adults 21+ to grow up to 6 cannabis plants per person, with a maximum of 12 plants per household, in a secure area out of public view.
Under Massachusetts General Laws Chapter 94G, adults 21 years and older in Waltham may cultivate cannabis at their primary residence for personal use. Each adult may grow up to 6 mature plants, with a household cap of 12 plants regardless of how many adults reside there. Plants must be kept in an area equipped with a lock or other security device and may not be visible from a public place without binoculars, aircraft, or similar tools. This generally means indoor grow or a fenced, screened outdoor area. Renters must have landlord permission because landlords may ban cultivation under lease terms. Home-grown cannabis may not be sold; sharing up to 1 ounce with another adult 21+ without remuneration is permitted. Homes where children reside should take extra care to prevent access. Waltham does not impose additional local cultivation restrictions beyond state law, but electrical, building, and fire code compliance is required for any grow infrastructure.
Contact your local code enforcement office for specific penalty information.
Waltham, MA
Waltham sits under Boston Logan arrival corridors and is affected by federal FAA regulations, with local enforcement limited to ground noise.
Waltham, MA
Waltham permits leaf blowers during daytime hours only, with seasonal restrictions being debated as part of regional Boston suburb trends.
Waltham, MA
Waltham enforces nighttime quiet hours under Chapter 10 of the Municipal Code, with stricter limits in residential zones near Brandeis and Bentley campuses.
Waltham, MA
Construction noise in Waltham is restricted to daytime hours to protect residential neighborhoods and students living near Brandeis and Bentley Universities.
Waltham, MA
Waltham requires electrical permits for home EV chargers and follows Massachusetts Stretch Energy Code requiring EV-ready parking in new multifamily and comm...
Waltham, MA
Waltham enforces metered parking downtown, resident permit zones in dense neighborhoods, and a citywide winter parking ban during snow emergencies.
Side-by-side rule comparisons with other cities in Middlesex County.
See how other cities in Middlesex County handle home cultivation.
See how Waltham's home cultivation rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.