Harford County, MD - 2026 Building Permit Guide

Permit Authority

Countywide permit authority for unincorporated Harford County. Municipalities such as Bel Air, Aberdeen, and Havre de Grace run their own local permit programs, but unincorporated areas are handled directly by the County.

Department

Harford County Department of Inspections, Licenses and Permits, Permit Center, with Building Services Division and Planning and Zoning support

Address

220 S. Main Street, Bel Air, MD 21014

Phone

410-638-3122

Email

building@harfordcountymd.gov

Website

https://www.harfordcountymd.gov/985/Permits

Online Permit Portal

Application Process

1. Determine whether the work requires a permit under the County permit and building services guidance.
2. Apply online through the ePermit Center, by email to building@harfordcountymd.gov, or by in-person or mailed submission to the Permit Center.
3. Submit the required site plan, construction plans, and supporting PDFs.
4. The County routes the application to applicable reviewers, which may include Planning and Zoning, Building Services, Health Department, DPW water and sewer, driveway access, stormwater, State Fire Marshal, and others.
5. After initial processing, the County states each reviewing agency aims to comment or approve within 10 business days.
6. Pay permit fees, including the non-refundable application fee.
7. Receive the issued permit and keep the approved plans and permit on site.
8. Schedule inspections, complete all required finals, and obtain certificate of occupancy where required.

Typical processing time: Agency goal is comment or approval within 10 business days after initial processing; no fixed countywide issuance guarantee is posted.

Source: Harford County Department of Inspections, Licenses and Permits, Permit Center, with Building Services Division and Planning and Zoning support

General Requirements

Generally required to construct or alter a structure, demolish or move a structure, install or alter regulated equipment, change use, or place a structure.

Required Documents

• Permit application
• Site plan or survey
• Construction drawings
• Contractor contract for residential work if applicable
• Recent deed if ownership changed
• IECC form for new dwellings or additions
• Fire sprinkler plans where applicable
• Outside-agency documents required by site conditions

Permit validity

Application expires after 180 days unless issued or diligently pursued. Issued building permit expires if work is not commenced and diligently pursued within 12 months, or if suspended or abandoned for 6 months. Diligently pursued means an inspection occurs within 6 months from the previous inspection.

Building code

Harford County adopted the 2021 International Building Code, 2021 International Residential Code, 2021 International Mechanical Code, 2021 International Plumbing Code, and 2023 National Electrical Code, with local amendments.

Owner-builder

Owner or authorized agent may apply. Trade permits for owner-occupied homes may require one-time homeowner permits and testing. Residential contractors listed on the application must carry MHIC, or MHBR for new dwellings.

Contractor requirements

Building contractors must meet MHIC or MHBR rules as applicable. Electrical permits must be obtained by a county-licensed master electrician unless homeowner exception applies. Mechanical permits require a registered master HVACR contractor. Plumbing permits require a registered master plumber.

Fees

Minimum permit fee

$20 for accessory structures 200 square feet and under; many other permit categories carry non-refundable application fees

Plan check fee

Preliminary plan review $60 per half hour; building permit schedules also include non-refundable application fees

Permit fee formula

Primarily square-foot based for building permits, with flat fees for many miscellaneous permits and separate plumbing, mechanical, and electrical schedules

Reinspection fee

$50 for reinspection or unnecessary trip; $100 investigation fee; violation fees from $500 upward; $50 penalty for proceeding without prior inspection

Penalty (no permit)

Permit extension $50; expired permit reissuance $100 residential and $200 commercial

Payment note

Building permit fees are paid at application. County allows a 50% refund on canceled building permits where no work has been done and refund is requested within 6 months. No refunds are issued for electrical, mechanical, or plumbing permits.

Fees change. Verify current amounts at the official fee schedule (effective 2026-03).

Work That Does NOT Require a Permit

• One-story residential accessory structures 200 square feet or less and not high hazard
• Ordinary repairs that do not remove structural members, alter egress, or affect public health or safety
• Replastering or resurfacing of an existing pool or spa
• Certain public service agency generation, transmission, distribution, metering, or related equipment work

Important: The County publishes a specific list of exempt work items. Verify your project with the Permit Center if uncertain.

Inspections

How to Schedule

• ePermit Center (online)
• 410-638-3366 (phone)

Scheduling deadline

Requests before 3 p.m. are scheduled for the next business day pending availability; later requests go to the second business work day. Approximate time requests may be made between 7:00 and 7:30 a.m. on inspection day.

Typical inspection sequence: Footing, foundation, slab or drain tile, framing after rough-ins, insulation, ceiling where applicable, and final before certificate of occupancy.

Additional Resources

• Building code: Harford County adopted the 2021 International Building Code, 2021 International Residential Code, 2021 International Mechanical Code, 2021 International Plumbing Code, and 2023 National Electrical Code, with local amendments.
• Zoning information: View zoning info
• Zoning Classifications
• Grading Permits
• Code Criteria
• Zoning Code
• License lookup guide: Maryland Contractor License Requirements
• Contract template: Maryland Homeowner-Contractor Agreement
• Maryland hub: Maryland Contractor License & Permit Hub

Frequently Asked Questions

Harford County Building Permit FAQ

Do I need a building permit in unincorporated Harford County, MD?

Generally required to construct or alter a structure, demolish or move a structure, install or alter regulated equipment, change use, or place a structure.

How much does a building permit cost in unincorporated Harford County, MD?

The minimum permit fee is $20 for accessory structures 200 square feet and under; many other permit categories carry non-refundable application fees. Fees are calculated as: Primarily square-foot based for building permits, with flat fees for many miscellaneous permits and separate plumbing, mechanical, and electrical schedules. Plan check fee: Preliminary plan review $60 per half hour; building permit schedules also include non-refundable application fees.

How do I apply for a building permit in unincorporated Harford County, MD?

1. Determine whether the work requires a permit under the County permit and building services guidance. 2. Apply online through the ePermit Center, by email to building@harfordcountymd.gov, or by in-person or mailed submission to the Permit Center. 3. Submit the required site plan, construction plans, and supporting PDFs. 4. The County routes the application to applicable reviewers, which may include Planning and Zoning, Building Services, Health Department, DPW water and sewer, driveway access, stormwater, State Fire Marshal, and others. 5. After initial processing, the County states each reviewing agency aims to comment or approve within 10 business days. 6. Pay permit fees, including the non-refundable application fee. 7. Receive the issued permit and keep the approved plans and permit on site. 8. Schedule inspections, complete all required finals, and obtain certificate of occupancy where required.

How long does it take to get a building permit in unincorporated Harford County, MD?

Typical processing time is Agency goal is comment or approval within 10 business days after initial processing; no fixed countywide issuance guarantee is posted..

What work is exempt from building permits in unincorporated Harford County, MD?

The following work is generally exempt: One-story residential accessory structures 200 square feet or less and not high hazard; Ordinary repairs that do not remove structural members, alter egress, or affect public health or safety; Replastering or resurfacing of an existing pool or spa; Certain public service agency generation, transmission, distribution, metering, or related equipment work. Note: The County publishes a specific list of exempt work items. Verify your project with the Permit Center if uncertain.

How do I schedule a building inspection in unincorporated Harford County, MD?

Inspections can be scheduled via: ePermit Center, 410-638-3366. Requests before 3 p.m. are scheduled for the next business day pending availability; later requests go to the second business work day. Approximate time requests may be made between 7:00 and 7:30 a.m. on inspection day..