Harford County's Department of Inspections, Licenses and Permits runs a one-stop Permit Center on the first floor of the county administrative office at 220 South Main Street in Bel Air, gathering reviewers from Planning and Zoning, Public Works and its own divisions into a single workspace. The county enforces the 2021 International Building, Residential and Mechanical Codes with local amendments as adopted by County Council Bill 24-005, effective May 29, 2024 — the deadline the state set for local enforcement of the 2021 editions.
Its permit rules are strict about momentum. A building permit is valid for 12 months from issue; work must commence within 12 months of the approval date; and if work does not progress for six months after construction has started, the permit is declared invalid. The county interprets diligent pursuit as an inspection obtained within six months of the previous inspection, and will issue another permit on application where the holder can show construction will commence within six months of reissuance and be pursued to completion.
This guide covers Harford County. The Town of Bel Air, the City of Aberdeen and the City of Havre de Grace take building permit applications and issue the permit themselves, but the county’s department reviews the plans and carries out the building, electrical, plumbing and mechanical inspections there as a third-party service, with county fees charged on top of the town’s. Edgewood, Joppa, Fallston and Jarrettsville are unincorporated and permitted by the county.
Six months of silence voids the permit. Harford County provides that a permit becomes invalid if the work is not commenced and diligently pursued within 12 months after issuance, or is suspended or abandoned for six months after the work has commenced — and reads diligent pursuit as an inspection obtained within six months of the previous inspection. On a slow project, booking an inspection is what keeps the permit alive.
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Get a free quote →What requires a building permit in Harford County?
Typically permit required
- Every building permit, with construction commenced within 12 months and an inspection at least every six months thereafter
- A use and occupancy certificate before occupying any structure or part of one covered by the permit, after every agency's final approval
- Separate electrical, plumbing and mechanical permits, obtained by a licensed master electrician, master plumber or registered master HVACR contractor
- New buildings, additions and any structural work on an existing building
- Interior alterations that reconfigure space, add plumbing fixtures or extend circuits, under the building or residential code and the Maryland Building Rehabilitation Code
- Decks, accessory structures above the local exemption threshold, retaining walls and swimming pools, including above-ground pools
Often exempt
- Work the county's adopted codes place outside the permit requirement — the Building Services Division confirms it before work starts
- Painting, wallpapering, interior finishes, cabinets, flooring and trim
- Like-for-like replacement of windows and doors in the same opening
- Small detached accessory structures below the jurisdiction's exemption threshold and fences below its height limit — the zoning rules still apply
- Minor repairs that do not remove or alter structural members
What is actually local, and what is not
The code editions are the state's. Harford County's layer is the enforcing office and its amendments to the building and residential codes, its fee schedule, its grading ordinance and its stormwater programme under MDE criteria, and the six-month inactivity rule, the use and occupancy certificate that every agency must clear, and the homeowner's electrical test.
Maryland enforces one statewide set of codes, the Maryland Building Performance Standards (COMAR 09.12.51), through the county or city permit office, which may amend the building and residential codes for local conditions. Maryland rules
Who handles permitting in Harford County?
The Department of Inspections, Licenses and Permits is the enforcing office, with its Building Services Division and the Chief of Building Services as its senior code official, and it registers professionals in certain trades. The Permit Center brings Planning and Zoning and Public Works reviewers into one room, the Health Department and Water and Sewer approvals are required on all commercial permits, and Bill 24-013 reset the department's permitting, plan review and licensing fees.
Not sure this scope needs a permit?
Get a free quote →| Detail | Information |
|---|---|
| Department | Harford County Department of Inspections, Licenses and Permits |
| Office | Permit Center, 220 South Main Street, first floor, Bel Air, MD 21014 |
| Phone | Building Services (410) 638-3366; permits (410) 638-3122 |
| Hours | Monday to Friday, 7:00 am to 4:00 pm |
| Filing | ePermit Center online, strongly encouraged; a drop box is available in the lobby |
| Codes | Bill 24-005, effective May 29, 2024 — 2021 IBC, IRC and IMC with local amendments |
In 2025, building permits issued in unincorporated Harford County authorized 349 new privately owned housing units, all of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Permit types
Residential permits
A Harford County house project files at the Permit Center or through the ePermit Center with plans signed and sealed by a Maryland-registered design professional where the code requires it, and a copy of the signed deed where the property changed hands within the past two months. A homeowner doing electrical work in their own home applies for a one-time homeowner's permit and must pass a homeowner's test; the trades are otherwise pulled by licensed masters. The lot must be stabilised and the address clearly visible from the road before the final.
Commercial permits
Commercial work in Harford County needs Health Department and Water and Sewer approvals on every permit, and special inspections are filed under the department's own memorandum where the code requires them. The use and occupancy certificate issues only after every applicable agency has given final approval, with agency approvals reviewable through the ePermit Center, and all reinspection and agency fees paid first.
Prior approvals, plan review and the local clock
In Harford County the Chesapeake Bay Critical Area reaches the shoreline along the Susquehanna and the bay head, the Harford Soil Conservation District reviews sediment control, and Health Department well and septic approvals run beside the building permit in the county's rural north. Maryland sets no deadline for deciding a building permit (though since 1 October 2026 the office must decide within 30 days whether a housing application is complete) — Harford County publishes its own targets, and they are the number to plan against.
Rather talk it over?
Call 1-855-478-4290 →Maryland licenses home improvement contractors through the Maryland Home Improvement Commission and home builders register with the Attorney General; trade licences are mostly state licences, but some counties and WSSC license or register trades themselves. Maryland rules
Harford County permit costs and fees
Fees follow the schedule reset by Bill 24-013 for permitting, plan review and licensing applications, with reinspection and agency fees payable before the use and occupancy certificate.
| Item | Fee or rule |
|---|---|
| Permits and plan review | The schedule enacted by Bill 24-013 |
| Reinspection | $50 per reinspection, payable before the use and occupancy certificate issues |
| Use and occupancy certificate | No fee to issue, but outstanding reinspection and agency fees must be cleared |
| Cancelled permit | Half the fee refunded where no work has been done, if applied for within six months of issuance |
| Records requests | Charged per page for printed copies, with personnel time after the first two hours |
| Homeowner electrical | One-time homeowner's permit, after passing the county's homeowner test |
An unused permit is half refundable. Where no work has been done under an issued permit, the holder may deliver the permit to the Permit Center and, on cancellation, receive a refund of 50 percent of the fee paid — provided the refund application is made within six months of issuance. A permit pulled for a deal that collapsed is worth returning promptly.
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Get a free quote →Trade permits and who may pull them
Permit required
- Homeowner electrical work — a one-time homeowner's permit and a passed homeowner's test
- Electrical — state-licensed master electrician; separate electrical permit
- Plumbing and gas — state-licensed master plumber or gas fitter; separate plumbing and gas permits
- HVACR — state-licensed HVACR contractor; mechanical permit
- Fire protection, alarms and sprinklers — fire marshal review, state or local, with the building permit
Typically exempt
- Like-for-like fixture, receptacle and switch replacement where the licensing boards' rules allow it
- Low-voltage and communications wiring below the local permit threshold
Trade work is permitted separately and inspected locally or, for electrical work in many counties, by a state-certified private inspection agency. Maryland rules
How to apply for a Harford County building permit
Zoning certification, grading and sediment control, stormwater, forest conservation and Critical Area review run ahead of the building permit.
The home builder registration number (required by state law for new homes) or, where the office asks for it, the Maryland Home Improvement Commission licence number goes on the application.
The local application with the building, residential and energy code submittals the scope requires, and trade permits alongside.
Reviewers in the local office check the building, residential and energy codes as the jurisdiction amended them; corrections are answered in writing.
Fees follow the jurisdiction's ordinance and are due before issuance.
Footing to final by permit number, then the use and occupancy certificate that closes the permit.
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Get a free quote →Review, corrections and what actually causes delay
Harford County's Permit Center is built to review across departments in one place, and inspection requests made before 3:00 pm, by phone to Building Services at (410) 638-3366 or through the ePermit Center, are scheduled for the next business day. What delays a file here is a deed not produced on a recently transferred property, a use and occupancy certificate requested with agency fees outstanding, and a permit allowed to go six months without an inspection.
Inspections in Harford County
Inspections follow the adopted codes' required sequence — footing, foundation, framing, rough trades, insulation and final — and are requested from the local office by permit number. Work that passes final receives a use and occupancy certificate for new buildings and changes of use, or a final approval on the permit for everything else. Harford County inspects during construction and at completion, with reinspection fees where a site is not ready or not clearly identified by address; the lot must be stabilised before any use and occupancy certificate issues, and requests made before 3:00 pm are scheduled for the next business day subject to availability; later requests go to the second business day.
Harford County permit search and official resources
- Harford County permits — Bill 24-005 codes, permit life and trade applications
- Harford County building inspections — the use and occupancy certificate and reinspection fees
- Harford County building services — sealed plans, deeds and the refund rule
- Maryland Building Performance Standards — the statewide code adoptions from the Department of Labor's Building Codes Administration
- Maryland Home Improvement Commission — home improvement contractor licensing and the guaranty fund
- Home Builder Registration Unit — new home builder registration with the Attorney General
Inspections are where schedules slip.
Get a free quote →Frequently asked questions
How long does a Harford County permit last?
12 months from issue. Construction must commence within 12 months of approval, and a permit is invalid if work is suspended or abandoned for six months after starting.
What counts as diligently pursued?
The county interprets it as an inspection obtained within six months of the previous inspection.
Can a homeowner do their own electrical work?
Yes, after applying for a one-time homeowner's permit and passing the county's homeowner's test; otherwise a licensed master electrician pulls the permit.
What is needed before the use and occupancy certificate?
Final approval from every applicable agency, a stabilised lot, an address visible from the roadway, and payment of all reinspection and agency fees; the certificate itself carries no fee.
Can I get a refund on an unused permit?
50 percent of the fee, if no work has been done and the refund is applied for within six months of issuance.
Which codes does the county enforce?
The 2021 International Building, Residential and Mechanical Codes with local amendments, adopted by Bill 24-005 and enforced from May 29, 2024 under the Maryland Building Performance Standards.
Simplify Harford County permitting with Alliance Permitting
Harford County keeps a permit alive only while it is moving. We file complete at the Permit Center, keep an inspection on the calendar inside every six-month window, and clear the agency approvals before the use and occupancy certificate is due.
Ready to break ground in Harford County sooner?
Send us the scope and the parcel. We confirm the review path with the Harford County Department of Inspections, Licenses and Permits, assemble the submittal, file it, and track it through issuance — corrections included.
More Maryland permitting guides
More Maryland permitting guides
This guide is provided by Alliance Permitting for general information about Harford County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.