Solar Energy in Cambridge, MA (2026)
2 verified solar energy rules for Cambridge, Massachusetts, sourced directly from the municipal code and official government pages.
Verified from official government sources
Panel Permits
Cambridge treats solar arrays as a permitted accessory system under a standard building permit, but zoning protection only kicks in once the system is added to the city's public solar registry a year after the permit issues, per Zoning Ordinance Section 22.60.
Cambridge Solar Energy System Registry
Light RestrictionsCambridge Zoning Ordinance §§ 22.62-22.64 (Solar Energy Systems), Supp. No. 5
A Registered Solar Energy System shall be defined as a Solar Energy System for which a building permit has been issued, provided that at least one year has passed since the issuance of such permit, and whose sun-exposed elements are at a height no lower than five (5) feet below the maximum height allowed within the base zoning district in which it is located. Such systems shall be recorded on a...
HOA Restrictions
Under MGL c.40A s.3, Massachusetts protects solar access by prohibiting zoning or private restrictions that unreasonably prevent solar installation, though reasonable condo and HOA aesthetic rules are allowed.
Cambridge Solar Access Protections
Few RestrictionsMGL Chapter 40A, Section 3
Section 3: Subjects which zoning may not regulate; exemptions; public hearings; temporary manufactured home residences [...] No zoning ordinance or by-law shall prohibit or unreasonably regulate the installation of solar energy systems or the building of structures that facilitate the collection of solar energy, except where necessary to protect the public health, safety or welfare. No zoning...