Administrative overview · FIPS 24009
Calvert County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Calvert County Department of Planning & Zoning - Inspections & Permits Division
For a project in or near Calvert County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
410-535-2155 (Inspections & Permits); 301-855-1243; 800-735-2258 (Maryland Relay)
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
County Administration Building, 3rd Floor, 150 Main Street, Prince Frederick, MD 20678
Operating hours
Monday-Friday, 8:30 a.m.-4:00 p.m.; closed 8:30-10:00 a.m. on the first and third Thursday of each month for staff development
Review expectation
N/A - the county states that timelines vary by project complexity and agency reviews, but does not publish a standard permit-review duration. Inspection requests made before 3:00 p.m. are intended for the following business day.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Calvert County
Who handles permitting for this jurisdiction?
Calvert County Department of Planning & Zoning - Inspections & Permits Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 410-535-2155 (Inspections & Permits); 301-855-1243; 800-735-2258 (Maryland Relay).
How long might review take?
N/A - the county states that timelines vary by project complexity and agency reviews, but does not publish a standard permit-review duration. Inspection requests made before 3:00 p.m. are intended for the following business day.
How are inspections scheduled?
Request inspections online through Encompass or call 410-535-2155 with the AP number and/or property address. Requests made before 3:00 p.m. are intended for scheduling the following business day; call the morning of inspection for a two-hour window. The permit holder must provide access and have work ready and visible; concealed work may have to be exposed. A reinspection fee is assessed after an inspection type fails twice. A new single-family dwelling may not be occupied until all required final inspections pass and a Certificate of Occupancy is issued.
Which codes and exemptions should I review?
The county's published code requirements, reviewed for 2026, list the 2018 International Residential Code and 2018 International Existing Building Code for residential work; 2018 International Building Code and 2018 International Existing Building Code for commercial work; 2017 NFPA 70 National Electrical Code with county amendments; 2018 International Plumbing Code; 2018 NFPA 54 Fuel Gas Code; 2017 NFPA 58; 2018 NFPA 99; Maryland Accessibility Code 2012; and 2011 sediment-control and stormwater standards. The page also identifies 2024 NFPA 1 and 2024 NFPA 101 as effective June 27, 2025 and administered by the State Fire Marshal. Accessory sheds and similar structures under 200 square feet generally do not require a building permit unless located in the Critical Area, but zoning setbacks still apply. Electrical work in a shed requires a separate electrical permit from a licensed master electrician, plumbing or gas work requires a separate permit from a licensed master plumber, and grading permits may be required for disturbances of 5,000 square feet or more or cut/fill exceeding 100 cubic yards. Other residential dwellings, additions, accessory structures, alterations, exterior modifications, signs, pools, demolition, grading, and utility work generally require review and permits based on scope and location.