Skip to main content
CityRuleLookup

Charles County, MD Building Safety: Building Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Building code adopted
2021 IBC/IRC/IECC/IFGC/IMC/IPC/ISPSC/IPMC
Enforcing office
Building Code Official, Planning & Growth Mgmt
Ag outbuilding exemption
Non-habitable, 5+ ag-zoned acres
Tent exemption
Open-sided, no cooking, <180 days, ≤2,400 sf
Flagpole exemption
20 feet or under
Appeal deadline
180 days of official's decision

Summary

Charles County adopted the 2021 International Building Code as "The Building Code of Charles County," effective for all permit applications, and runs it through the Building Code Official in the Department of Planning and Growth Management. The county carved out only a few narrow exemptions from IBC's permit requirement: small farm outbuildings, short-lived open tents, and low flagpoles.

These county ordinances apply to unincorporated areas of Charles County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

IBC Section 105.2, Work exempt from permit, add under "Building": 14. Non-Habitable outbuildings for verifiable agricultural use on agriculturally zoned parcels of five acres or more. ... IBC Section 105.2, Work exempt from permit, add under "Building": 15. Tents and membrane structures that are open sided, with no cooking facilities contained within, for use less than 180 days, up to 2,400 square feet are exempt permits. ... IBC Section 105.2, Work exempt from permit, add under "Building": 16. Flagpoles not exceeding 20 feet are exempt from permits.

Full Breakdown

Under County Code § 224-1(1), the 2021 IBC, IRC, IECC, IFGC, IEBC, IMC, IPC, ISPSC and IPMC were adopted collectively as the county's Building Code, taking effect for all permit applications on the bill's effective date, with local insertions, additions and deletions. 2, "Work exempt from permit," adding three carve-outs under "Building": non-habitable outbuildings for verifiable agricultural use on agriculturally zoned parcels of five acres or more; open-sided tents and membrane structures with no cooking facilities, used less than 180 days and up to 2,400 square feet; and flagpoles not exceeding 20 feet. Everything else, additions, alterations, most accessory structures and any occupancy change, still needs a permit. 1). 1). 1(14)).

Violations & Fines

Unresolved violations trigger discretionary weekly or monthly fines under amended IBC § 114.4, but only after the Building Code Official gives written or electronic notice to the responsible person. No building or structure may be erected on a public utility easement under added § 114.5. Outstanding violations can also freeze future permits and inspections countywide under § 105.6.1 until the applicant clears them.

Frequently Asked Questions

Does Charles County require a permit for a flagpole?
No. County Code § 224-1.1 adds flagpoles not exceeding 20 feet to the IBC's list of work exempt from a building permit. Taller flagpoles fall back under the standard IBC permit requirement administered by the Building Code Official.
Can I put up a farm building without a permit?
Only if it is non-habitable and sits on an agriculturally zoned parcel of five acres or more; that is the exact test County Code § 224-1.1 added to IBC § 105.2. Smaller parcels or habitable structures still need a permit.
Are temporary event tents exempt?
Yes, if the tent or membrane structure is open-sided, has no cooking facilities, is used less than 180 days, and covers up to 2,400 square feet. Enclosed tents, cooking tents, or larger structures need a building permit.
What happens if I already have an unresolved code violation?
The Building Code Official can withhold any new commercial, residential or trade permit and hold up inspections until you fix the existing violation, under § 224-1.1(10). This applies countywide, not just to the property with the open violation.

Sources & Official References

Other rules in Charles County

All Charles County rules

Compare Charles County to another location·View the Maryland building safety overview

Get notified when Building Permits in Charles County, MD changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.