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Virginia / Local permit guide

Loudoun County Solar Permit Guide

Your local requirements. The official sources. A clearer next step.

Electric utility
Confirm utility for your addressAddress checkThis record is not an unambiguous city-wide utility determination.
Local pathway
Not yet verified.
See your permit path

Loudoun County ·

Loudoun County Solar Permit Checklist
Printed from mygridpermit.com/virginia/loudoun-county/solar-permit-guide/ · Last verified 2026-08-13 · Loudoun County Department of Building and Development, Permitting Division / Dominion Energy Virginia · Verify current requirements before relying on this checklist. Programs and fees change.
Source healthLast verified 2026-08-133 official sources5 of 6 core facts verified
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Informational only. This page is not legal, engineering, or permit advice. Every fact below links to the official source it came from and shows how confident we are in it. Verify current requirements with Loudoun County Department of Building and Development, Permitting Division and Dominion Energy Virginia before making a decision.

Research coverage

Your permit path,
at a glance.

This shows what GridPermit has verified for Loudoun County. It does not show the status of a specific project.

  1. 01Permit authorityLoudoun County Department of Building and Development, Permitting DivisionAuthority sourced
  2. 02DocumentsChecklist includes conditional itemsConditions apply
  3. 03InspectionInspection guidance for Loudoun CountySteps sourced
  4. 04Utility & PTOConfirm utility for the project addressAddress check needed

01 / Know your path

Two approvals.
One project.

Local authority

Permit & inspection

Loudoun County Department of Building and Development, Permitting Division

Local requirements
Electric utility

Interconnection & PTO

Dominion Energy Virginia

Utility requirements

A local permit and utility permission to operate are different approvals. Check the local sequence and requirements below.

How to read this guide

GridPermit collects Virginia residential solar and permitting facts directly from official sources (city, county, and state government sites, utilities, and public utilities commissions) and shows only what we can verify, with a confidence score and a link to where it came from. Nothing here is estimated or inferred beyond what's stated below. See our methodology for the rules this page follows.

Battery/solar incentive program on record

No battery/storage incentive program is on record for this locality.

02 / Prepare your application

What you need.

0 of 4 markedSaved only on this device; not confirmation of permit readiness.

Sources & confidence

Confidence: High (0.9)

Source(s): Solar Permits

Permit fees

  • Building Permit: $230 (flat fee)

    Per the County's own Solar Permits page.

  • Zoning Permit: $165 (flat fee — ground-mounted systems only)

    Per the County's own Solar Permits page; not required for roof-mounted systems on an existing structure.

  • Electrical Permit: $70 (flat fee)

    Per the County's own Solar Permits page.

Sources & confidence

Confidence: High (0.9)

Source(s): Solar Permits

Rebates on record

Rebates on record

Not yet verified.

Utility and generation supplier

Utility

Dominion Energy Virginia

Dominion is recorded here as the more broadly-described provider per general reporting, with confidence lowered accordingly; a solar applicant in Loudoun County should confirm their own provider directly rather than assume. Some supporting official material could not be independently confirmed from the full source in GridPermit's latest review. Verify the current requirement with the authority before relying on it.

Sources & confidence

Confidence: Medium (0.55)

Source(s): Net Metering

Generation supplier

Dominion Energy Virginia (utility)

Some supporting official material could not be independently confirmed from the full source in GridPermit's latest review. Verify the current requirement with the authority before relying on it.

Sources & confidence

Confidence: Low (0.4)

Source(s): Net Metering

Interconnection

https://www.dominionenergy.com/virginia/renewable-energy-programs/net-metering

Confidence: High (0.85)

Permit authority

Loudoun County Department of Building and Development, Permitting Division

Virginia's Uniform Statewide Building Code (USBC) is administered centrally by the Department of Housing and Community Development (DHCD) and its Board of Housing and Community Development, but enforcement — including permit fees, application processes, staffing, and review timelines — is delegated to each local government's own building department. Loudoun County's own Department of Building and Development is the permitting authority for unincorporated county areas; incorporated towns within the county (e.g., Leesburg, Purcellville) may operate their own separate building departments and would be separate AHJs not covered by this record.

Sources & confidence

Confidence: High (0.95)

Source(s): Solar Permits, Virginia Uniform Statewide Building Code (USBC)

Permit page: https://www.loudoun.gov/solarpermits

Inspection steps

  • Inspections are scheduled through LandMARC
  • Inspections occur between 8:30 a.m. and 3:00 p.m., Monday through Friday
Sources & confidence

Confidence: High (0.85)

Source(s): Solar Permits

Eligibility constraints

  • Property types: residential
  • Max system size (AC): Not yet verified.
  • Max system size (DC): Not yet verified.
  • Max thermal capacity: Not yet verified.
  • Program/pathway: Not yet verified.
  • Other conditions:
    • Homeowners may pull the permit themselves using a 'Statement of Owner/Lessee License Exemption,' or hire a licensed Virginia State Contractor
    • Ground-mounted systems require an additional zoning permit; roof-mounted systems on an existing structure do not
Sources & confidence

Confidence: High (0.85)

Source(s): Solar Permits

Official contacts

Official contacts
  • Loudoun County Department of Building and Development, phone: 703-777-0220, official website

Confidence: High (0.85)

Need a solar installer who handles permits in Loudoun County?

EnergySage is an independent solar marketplace where you can request property-specific pricing from installers familiar with local permitting.

Compare quotes from solar installers →

You'll continue on EnergySage's website. GridPermit links to EnergySage as an independent third-party resource. This link is not currently tracked for compensation.

Official sources

Official sources

Frequently Asked Questions

What utility serves solar customers in Loudoun County, Virginia?

Dominion Energy Virginia is the interconnection and distribution utility for Loudoun County. The same utility is also listed as the default electricity generation supplier.

What documents are required for a solar permit in Loudoun County?

Commonly required documents include: Construction drawings — three sets of wet-sealed plans showing PV array configuration, wiring system, overcurrent protection, inverter, disconnects, required signage, AC connection to the building, and attachment detail; Specification sheets and installation manuals for all components; A plat depicting the ground-mounted array's location relative to property boundaries; Building/Zoning Permit Application and a separate Electrical Permit Application.

Who do I contact about solar permits in Loudoun County?

Loudoun County Department of Building and Development, phone 703-777-0220.

Disclaimers: This page is for informational purposes only and is not legal, engineering, financial, tax, or permit advice. GridPermit is not a solar installer, contractor, engineering firm, public utility, or government agency. Requirements, fees, and program terms change. Verify current requirements with Loudoun County Department of Building and Development, Permitting Division and Dominion Energy Virginia before starting a project. Last verified 2026-08-13.

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