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Boston, MA solar permits

Residential solar permits in Boston, MA were issued in a median of 12 business days in 2024, with a median permit cost of $270.

12 business daysto permit, median (2024)
14 business daysto inspection
8 business daysfinal interconnection to PTO
$270median permit cost

Permitting and interconnection in Boston

Permit issued (median)12 business days (2024)
Inspection scheduled (median)14 business days (2024)
Utility approval before install (median)10 business days (2024)
Final interconnection to PTO (median)8 business days (2024)
Median residential permit cost$270
Online submissionOnline portal or email
Instant permittingNot available
Same-day, over-the-counter permitsAvailable
Structural review, systems under 10 kWRequired
Electrical review, systems under 10 kWOnly in some cases
Rough-in inspectionNot required
SolSmart designationBronze

A Boston plan set from Ballast

Enter the address and Ballast finds the jurisdiction and the utility, pulls the aerial and parcel line, and builds the set on ANSI B: cover, site plan, roof or array plan, attachment details, line diagrams, NEC calculations, labels and spec sheets.

  • Checks run under the code edition Boston has adopted, each with the article cited.
  • Any correction Boston sends back becomes a rule for the jurisdiction, so the next set already answers it.
  • The Solar Agent follows the permit through to approval, then moves the job on to interconnection and install.

Questions

How long does a solar permit take in Boston, MA?

The median time to issue a residential solar permit in Boston was 12 business days in 2024, according to NREL SolarTRACE.

How much does a solar permit cost in Boston?

The median residential solar permit cost in Boston is $270 (NREL SolarTRACE). Confirm the current fee schedule with the jurisdiction.

Source: SolarTRACE, National Renewable Energy Laboratory (NREL), 2025-09-09 release. Times are medians for residential solar in the year shown. Requirements change — confirm current rules, fees and forms with the jurisdiction before you submit.