Panel Permits: Arlington vs Waltham
How do panel permits rules compare between Arlington, MA and Waltham, MA?
Arlington and Waltham have similar restriction levels.
Arlington, MA
Middlesex County
Solar PV requires a building and electrical permit under 780 CMR and 527 CMR 12. The MA Solar Access Law, MGL c.40A s.3, protects installations from zoning bans.
View full Arlington rules →Waltham, MA
Middlesex County
Waltham requires building and electrical permits for solar installations, with expedited review under Massachusetts SolarAPP+ adoption and favorable zoning under MGL c.40A s.3.
View full Waltham rules →Key Facts Comparison
| Fact | Arlington | Waltham |
|---|---|---|
| Building code | 780 CMR | - |
| Electrical code | 527 CMR 12 | - |
| Solar access law | MGL c.40A s.3 | - |
| Incentive | SMART program | MA SMART program |
| Utilities | Eversource, Nat Grid | - |
| State Protection | - | MGL c.40A s.3 |
| Permits Required | - | Building plus electrical |
| Utility | - | Eversource interconnect |
| Historic District | - | Extra review required |
Highlighted rows indicate differences between cities.
Arlington FAQ
Can my town ban solar panels?
No. MGL c.40A s.3 prohibits unreasonable restrictions on solar energy systems.
Is net metering available?
Yes, through the MA DPU tariff subject to allocation caps.
Waltham FAQ
Can Waltham deny my solar permit?
Not for aesthetic reasons alone. MGL c.40A s.3 protects solar installations from unreasonable local restrictions. Safety and structural issues are legitimate grounds for revision.
How long does a Waltham solar permit take?
Standard residential rooftop permits typically take 10 to 15 business days. Ground-mounted or historic district projects take longer due to additional review.
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