Solar Permit in Montgomery County, Maryland

Permit required?

Yes, a permit is required.

When a permit is usually needed

Before installing any residential rooftop solar PV system

Permit cost and what affects it

Fees are set by the locality and are not published here. See the official fee schedule or contact the office for current amounts.

Permit costs generally depend on the project valuation, the scope of work, and the inspections required. Ask the office how the fee is calculated for your specific project.

Official fee schedule

Where to apply

• Official permit page
• Permit portal

Frequently asked questions

Do you need a solar permit in Montgomery County?

Two permits are required for residential rooftop solar in Montgomery County: a building permit for panel attachment and an electrical permit for service connection. The county eSolar program provides expedited same-day electronic permit issuance for eligible projects. Homeowners may not apply for solar permits in their own name; a contractor with an MHIC license is required. Always confirm with the Montgomery County Department of Permitting Services before starting.

How much does a solar permit cost in Montgomery County?

Fees are set by Montgomery County and are not published here. See the official fee schedule for current amounts.

How long does a solar permit take in Montgomery County?

Processing time for a solar permit in Montgomery County varies by workload and project scope. Contact the Montgomery County Department of Permitting Services for a current estimate.

Where do you apply for a solar permit in Montgomery County?

You can apply through the Montgomery County permit portal or contact the Montgomery County Department of Permitting Services directly. The links are listed on this page.

Official sources

• https://www.montgomerycountymd.gov/department-permitting-services/all-permits/residential-permits/esolar-residential-rooftop-solar-panels
• https://www.montgomerycountymd.gov/DPS/Process/rci/residential-solar.html