Can a homeowner pull a plumbing permit themselves in Cobb County?

Under Georgia law (O.C.G.A. 43-41-17(h); O.C.G.A. 43-14-13(d); O.C.G.A. 43-14-14): Georgia's contractor licensing law has a true owner builder exemption at O.C.G.A. 43-41-17(h), not 43-41-17(b). A property owner may construct a building on land the owner owns and act as his or her own contractor, personally providing direct supervision and management, but only if the finished building is intended solely for occupancy by the owner and the owner's family, firm, or corporation, is not for use by the general public, and is not offered for sale or lease. If the owner sold or transferred a self-built structure within the prior 24 months, measured from that structure's certificate of occupancy, the law presumes the new project was not really for personal occupancy and the exemption is unavailable without a license. The owner may not delegate supervision to any unlicensed person, and all work must still comply with county or municipal permitting and inspection requirements. For trade work, O.C.G.A. 43-14-13(d) separately allows an individual to install, alter, or repair plumbing, heating and air conditioning fixtures, and electrical or low-voltage wiring in a residential dwelling the individual owns or occupies, again in conformity with the codes and any local permit and inspection rules. Unlicensed trade work outside these exemptions is a misdemeanor punishable by up to a $1,000 fine or six months imprisonment or both (O.C.G.A. 43-14-14). Confirm how Cobb County applies this before you apply.

Georgia / Cobb County

Plumbing Permit in Cobb County, Georgia

Permit required

Yes, a permit is required

Before any plumbing installation, repair, or replacement

Confirmed on official page Verified 6 Jul 2026

Issued byCobb County Community Development Agency, Development and Inspections Division

By Mario Bailey, verified against official sources

Quick answer

Cobb County Code Section 18-27 requires any contractor, owner, or authorized representative doing plumbing construction to obtain a permit from the Development and Inspections Division before performing the work. The county's Building Permit Fee Schedule separately confirms Plumbing as one of its named Trade permit categories.

Who is pulling this permit?

Apply yourself

Apply on the Cobb County permit portal

Hire it out

When a permit is usually needed

Before any plumbing installation, repair, or replacement

What a plumbing permit costs in Cobb County

Line itemAmountApplies to

plumbing permitBy formulaPlumbing work is billed as an $80 trade permit under the Cobb County Building Permit Fee Schedule effective July 1, 2024, plus the $15 technology fee that applies to all permit types.

Fee schedule in forceOfficial scheduleRead 6 Jul 2026. Fees are the jurisdiction’s; we do not mark them up or estimate them.

How Cobb County compares in Georgia

No Georgia jurisdiction we have verified sets a size threshold for this permit, so what actually differs between them is the fee.

Jurisdiction	Permit needed?	Typical fee
Atlanta	Permit required	Not published
Cobb Countythis page	Permit required	Plumbing work is billed as an $80 trade permit under the Cobb County Building...
DeKalb County	Permit required	Plumbing Permit Application: "Fee Schedule: MINIMUM FEE $120 Additional $200...
Gwinnett County	It depends	...a combined "Mechanical, Electrical, Plumbing" application type at "$0.006...

How to apply in Cobb County

In Cobb County, you apply for a residential plumbing permit at your local building department by filing an application that describes the scope of work and site, along with construction documents, before any regulated plumbing installation, alteration, or repair begins. Minor repairs that do not touch piping or fixtures are generally exempt, and once issued the permit only stays valid if work is started within its time limit.

What most plumbing permit applications include:

For Cobb County, a permit is required before any owner or authorized agent constructs, alters, repairs, removes, converts, or replaces a plumbing system regulated by the code (IRC R105.1).
For Cobb County, the application must identify and describe the work, describe the site, state the intended use and occupancy, and be signed by the applicant or an authorized agent (IRC R105.3).
Two or more sets of construction documents must accompany the application, drawn with enough clarity to show the location, nature, and extent of the proposed plumbing work and how it will conform to code (IRC R106.1, R106.1.1).
Minor plumbing repairs, such as clearing a stoppage or removing and resetting a water closet without rearranging pipes or fixtures, are exempt from permit (IRC R105.2).
Once issued, a permit is only valid for a limited window, commonly 180 days, and becomes invalid if the work is not started or is abandoned within that time, though extensions can be requested (IRC R105.3.2, R105.5).

General submittal guidance from 2021 International Residential Code (IRC), Chapter 1 Scope and Administration, Sections R105 Permits and R106 Construction Documents. Source. Cobb County Community Development Agency, Development and Inspections Division sets the exact checklist for Cobb County.

Where to apply in Cobb County:

Cobb County Community Development Agency, Development and Inspections Division

1150 Powder Springs St, Ste 400, Marietta, GA 30064
Phone: (770) 528-2060
Email: building@cobbcounty.gov

Plumbing Permit in Cobb County compared with nearby Georgia localities

Locality	Permit needed?	Threshold	What each Georgia schedule says	Verified
Cobb County	Permit required	Any size	Plumbing work is billed as an $80 trade permit under the Cobb County Building Permit Fee...	6 Jul 2026
Atlanta	Permit required	Any size	Not published	17 Jun 2026
DeKalb County	Permit required	Any size	Plumbing Permit Application: "Fee Schedule: MINIMUM FEE $120 Additional $200 for Fire...	16 Aug 2026
Gwinnett County	It depends	Before installing, altering, repairing, removing, converting or replacing a plumbing...	...lists a combined "Mechanical, Electrical, Plumbing" application type at "$0.006 x...	16 Aug 2026

Inspections and closing out your permit

In Cobb County, plumbing inspections are timed to whatever is about to hide the pipe: underground and under-slab piping is checked before concrete covers it, rough-in piping is pressure or water tested before walls close up, and a final inspection checks every fixture and backflow protection once the work is complete.

In Cobb County: piping and equipment placed under a slab or floor must be in place and inspected before any concrete is poured or floor sheathing is installed over it (IRC R109.1.1.1).
In Cobb County: rough plumbing, along with the mechanical, gas, and electrical rough-in, must be inspected prior to covering or concealment and before fixtures or appliances are set (IRC R109.1.2).
In Cobb County: rough drain, waste, and vent (DWV) piping is tested with water, air, or (for plastic piping) a vacuum, and must show no evidence of leakage before it is closed in (IRC P2503.5.1).
In Cobb County: the water-distribution piping is tested and must hold tight under the system's working pressure, or under a 50 psi air test for non-plastic piping, before it is concealed (IRC P2503.7).
In Cobb County: the framing inspection cannot proceed until the plumbing rough inspection, along with the mechanical and electrical rough inspections, has been approved (IRC R109.1.4).
In Cobb County: at the final drainage test, each fixture is filled and then drained, and its traps and fixture connections must prove watertight by visual inspection (IRC P2503.5.2).
In Cobb County: final inspection is made after all work required by the permit is complete, and includes confirming backflow protection, such as vacuum breakers on hose bibbs, is installed (IRC R109.1.6, P2902.4.3).

Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Cobb County permit portal or by phone at (770) 528-2060.

Inspection sequence from 2021 International Residential Code (IRC), Section R109 Inspections and Section P2503 Inspection and Tests. Source. An open permit left un-inspected can surface later in a title search or home sale.

Your Plumbing Permit checklist for Cobb County

Confirm the requirement. Yes, a permit is required. Usually needed: Before any plumbing installation, repair, or replacement.
Budget the fee. Plumbing work is billed as an $80 trade permit under the Cobb County Building Permit Fee Schedule effective July 1, 2024, plus the $15 technology fee that applies to all permit types. Official fee schedule.
Apply. In Cobb County, you apply for a residential plumbing permit at your local building department by filing an application that describes the scope of work and site, along with construction documents, before any regulated plumbing installation, alteration, or repair begins. Minor repairs that do not touch piping or fixtures are generally exempt, and once issued the permit only stays valid if work is started within its time limit. Start at the Cobb County permit portal.
Keep the office details handy. Cobb County Community Development Agency, Development and Inspections Division. Phone: (770) 528-2060. Address: 1150 Powder Springs St, Ste 400, Marietta, GA 30064.
Plan for inspections. In Cobb County, plumbing inspections are timed to whatever is about to hide the pipe: underground and under-slab piping is checked before concrete covers it, rough-in piping is pressure or water tested before walls close up, and a final inspection checks every fixture and backflow protection once the work is complete.

Compiled from the official sources on this page. Last checked 6 Jul 2026.

Frequently asked questions

Do you need a plumbing permit in Cobb County?: Cobb County Code Section 18-27 requires any contractor, owner, or authorized representative doing plumbing construction to obtain a permit from the Development and Inspections Division before performing the work. The county's Building Permit Fee Schedule separately confirms Plumbing as one of its named Trade permit categories. Always confirm with the Cobb County Community Development Agency, Development and Inspections Division before starting.
How much does a plumbing permit cost in Cobb County?: Plumbing work is billed as an $80 trade permit under the Cobb County Building Permit Fee Schedule effective July 1, 2024, plus the $15 technology fee that applies to all permit types. See the official fee schedule for current amounts.
Where do you apply for a plumbing permit in Cobb County?: You can apply through the Cobb County permit portal or contact the Cobb County Community Development Agency, Development and Inspections Division directly. The links are listed on this page.
Can a homeowner pull a plumbing permit themselves in Cobb County?: Under Georgia law (O.C.G.A. 43-41-17(h); O.C.G.A. 43-14-13(d); O.C.G.A. 43-14-14): Georgia's contractor licensing law has a true owner builder exemption at O.C.G.A. 43-41-17(h), not 43-41-17(b). A property owner may construct a building on land the owner owns and act as his or her own contractor, personally providing direct supervision and management, but only if the finished building is intended solely for occupancy by the owner and the owner's family, firm, or corporation, is not for use by the general public, and is not offered for sale or lease. If the owner sold or transferred a self-built structure within the prior 24 months, measured from that structure's certificate of occupancy, the law presumes the new project was not really for personal occupancy and the exemption is unavailable without a license. The owner may not delegate supervision to any unlicensed person, and all work must still comply with county or municipal permitting and inspection requirements. For trade work, O.C.G.A. 43-14-13(d) separately allows an individual to install, alter, or repair plumbing, heating and air conditioning fixtures, and electrical or low-voltage wiring in a residential dwelling the individual owns or occupies, again in conformity with the codes and any local permit and inspection rules. Unlicensed trade work outside these exemptions is a misdemeanor punishable by up to a $1,000 fine or six months imprisonment or both (O.C.G.A. 43-14-14). Confirm how Cobb County applies this before you apply.

From the Library

What else needs a permit in Cobb County

Every other permit type we have verified for this jurisdiction, with the rule that applies here.

None of the 6 project types verified for Cobb County carry a size or scope threshold. See the Permit needed column for each project's own answer, since there is no threshold to compare here.

Project	Permit needed?	Typical fee
Deck Permit	Permit required	Decks are subject to a $100 site plan review fee in addition to the tiered residential...
Electrical Permit	Permit required	Electrical work is billed as an $80 trade permit under the Cobb County Building Permit...
HVAC Permit	Permit required	HVAC and mechanical work is billed as an $80 trade permit under the Cobb County Building...
Pool Permit	Permit required	Pool permits carry a $250 minimum fee under the Cobb County Building Permit Fee Schedule...
Shed Permit	Permit required	Accessory structures are subject to a $100 site plan review fee in addition to the...
Solar Permit	Permit required	Fee follows the small residential construction cost table, $80 base for cost up to...

Plumbing Permit in other Georgia localities

Everything above, sourced

library.municode.com: code of ordinancesread 6 Jul 2026

assets.cobbcounty.gov: 2024 Fee Schedule Update Finalread 6 Jul 2026

Code references

National and state model-code sections the general guidance on this page is drawn from. They are not Cobb County documents; the office above sets the local rules.

How this plumbing permit page for Cobb County was verified. 2 official sources: library.municode.com, assets.cobbcounty.gov; fee schedule: official document. Last checked 6 Jul 2026 by Mario Bailey, not confirmed with Cobb County Community Development Agency, Development and Inspections Division. Rules change; confirm before you build. How we verify.

Last checked: 6 Jul 2026Report an error on this page

Compare Plumbing Permit requirements across Georgia localities

Plumbing permit rules nationwide

Look up an existing Cobb County permit record