Loudoun County electrical permits run through the Department of Building & Development and are filed online in LandMARC, the county's land-management portal (in person at 1 Harrison Street SE in Leesburg also works). Contractors need both a Virginia state contractor license and a Loudoun County business license; fees are invoiced at intake and must be paid before review starts, and inspections are requested in LandMARC with a midnight cutoff for next-workday service.
Loudoun is not Fairfax with different exit numbers. Different portal, an extra license requirement, and a housing stock a full generation newer — which changes what inspectors spend their time on. Here's the whole process, checked against the county's Building & Development pages, plus the local context the county site won't tell you.
Before you file: the two-license rule
Fairfax checks your state license. Loudoun checks two things: a valid Virginia State Contractors License (verify at DPOR) and a Loudoun County business license. Both are stated requirements on the county's construction permits page. If Loudoun is new territory for you, sort the county business license out before the first job is on the calendar — it's an administrative errand when you plan it and a schedule slip when you don't.
Filing in LandMARC, step by step
- Create a LandMARC account. LandMARC (Land Management, Applications, Research, Coordination) is Loudoun's equivalent of Fairfax's PLUS — applications, payments, inspection requests, and results in one portal. Prefer paper? Building & Development takes applications in person at 1 Harrison Street SE, Leesburg, weekdays 8:30 to 5, or by mail.
- Submit the electrical application. On larger projects, trade permits apply as sub-records of the parent building permit — but they take their own applications; the building permit's architectural plans don't cover the electrical permit. Standalone electrical work (service upgrade, EV charger, generator) files with the electrical permit application, with a set of plans where the scope calls for them.
- Pay the intake invoice. This is a real difference from the old workflow: fees are invoiced at intake and must be paid before review begins. Card in LandMARC, cash or check, or ACH. Amounts change, so quote from the county's published fee schedule, never from memory — and build the fee into your price before you file, because the clock doesn't start until it's paid.
- Do the work to code. Same statewide standard as everywhere in Virginia: the NEC as adopted by the Uniform Statewide Building Code. And Loudoun's own guidance says it plainly — call Miss Utility (800-552-7001) before anything that breaks ground.
- Request inspections in LandMARC. Per the county's Building Inspections page: the cutoff for a next-workday inspection is midnight; inspections run 8:30 a.m. to 3 p.m., Monday through Friday; and inspectors are reachable by phone from 8 to 8:30 a.m. and 3 to 4 p.m. — a genuinely useful window when you'd rather talk through a correction than re-fail it. Results post in LandMARC, and work that isn't ready when the inspector arrives can draw a reinspection fee. Homeowners doing their own work can schedule online or by phone at 703-777-0220.
Inspection realities in newer stock
Experience talking, not county data: most of eastern Loudoun — Ashburn, Brambleton, South Riding, Stone Ridge — was built from the 1990s on. You will go months without seeing the legacy hazards that fill a Fairfax workweek; there's no aluminum branch wiring era here, and the obsolete panel brands are rare. What inspectors spend their time on instead: load calculations on panels that were builder-sized in 2004 and are now feeding an EV charger, a hot tub, and a finished basement; AFCI and GFCI coverage whenever an alteration touches a circuit; generator and interlock installs done to the letter; and finished-basement work, which is common enough here that the county publishes dedicated guidance for it. Western Loudoun is the counterweight — older farmhouse and small-town stock around Purcellville and points west that wires more like a Fairfax job than an Ashburn one.
One more Loudoun-specific habit: check the HOA before you check anything else. The county itself puts the burden on applicants to get homeowner- and property-owner-association approvals, and in a county this dense with planned communities, an exterior generator pad or visible conduit run can pass county inspection and still fail the HOA. That's a customer-relations failure you can prevent with one question at scoping.
The data-center county
Loudoun's other identity — the data-center corridor around Ashburn — matters to a residential electrician for one practical reason: it's an enormous, well-paying magnet for commercial electrical labor. That pull keeps residential capacity tight, which is good news for a solo running service work here: fewer trucks competing for the panel swaps and EV chargers that the county's newer housing stock generates in volume. It's part of why Loudoun punches above its weight in our own job flow.
Permits on Loadside jobs
Same deal here as everywhere we operate: the scope names the contractor of record — you, under your license — before you accept, and permit and inspection time is in the fixed price. The county process above is work you've already been paid for. Details on this county's job mix: Loadside in Loudoun County. Working both sides of the county line? The Fairfax permit guide is the companion piece, and the full pipeline picture lives at the hub: 7 ways electricians get work in 2026.
Licensed in Virginia and already holding a Loudoun business license? Apply — three minutes.