HVAC Permits in Tennessee

Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Tennessee.

98
Major Cities
611
ZIP Codes
2021 IECC
Energy Code
2
Climate Zones

Tennessee Energy Code Requirements

Understanding the energy efficiency standards that govern HVAC installations in Tennessee

Current Energy Code

2021 IECC

Current Standard

Statewide energy efficiency requirements for HVAC systems, equipment, and building envelope performance.

Common Requirements

Manual J load calculations
Equipment efficiency ratings
Duct system design
Building envelope compliance

Important Note

Local jurisdictions may have additional requirements beyond the state energy code. Always verify specific compliance needs with your local building department.

HVAC Permits by City in Tennessee

Memphis

Zone 3A

Shelby County • 25 ZIP codes

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Hamilton

Zone 4A

Hamilton County • 25 ZIP codes

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Nashville

Zone 4A

Davidson County • 20 ZIP codes

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Knoxville

Zone 4A

Knox County • 16 ZIP codes

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Carroll

Zone 4A

Carroll County • 12 ZIP codes

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Williamson

Zone 4A

Williamson County • 11 ZIP codes

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Rutherford

Zone 4A

Rutherford County • 11 ZIP codes

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Smith

Zone 4A

Smith County • 10 ZIP codes

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Polk

Zone 4A

Polk County • 10 ZIP codes

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Blount

Zone 4A

Blount County • 10 ZIP codes

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Davidson

Zone 4A

Davidson County • 9 ZIP codes

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Lincoln

Zone 4A

Lincoln County • 9 ZIP codes

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Washington

Zone 4A

Washington County • 9 ZIP codes

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Shelby

Zone 3A

Shelby County • 9 ZIP codes

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Hardeman

Zone 3A

Hardeman County • 9 ZIP codes

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Madison

Zone 3A

Madison County • 9 ZIP codes

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McNairy

Zone 3A

McNairy County • 9 ZIP codes

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Overton

Zone 4A

Overton County • 9 ZIP codes

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Montgomery

Zone 4A

Montgomery County • 8 ZIP codes

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Grundy

Zone 4A

Grundy County • 8 ZIP codes

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Franklin

Zone 4A

Franklin County • 8 ZIP codes

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Greene

Zone 4A

Greene County • 8 ZIP codes

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Sullivan

Zone 4A

Sullivan County • 8 ZIP codes

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Fayette

Zone 3A

Fayette County • 8 ZIP codes

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Gibson

Zone 4A

Gibson County • 8 ZIP codes

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Lawrence

Zone 4A

Lawrence County • 8 ZIP codes

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Sumner

Zone 4A

Sumner County • 7 ZIP codes

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Robertson

Zone 4A

Robertson County • 7 ZIP codes

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Hawkins

Zone 4A

Hawkins County • 7 ZIP codes

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Anderson

Zone 4A

Anderson County • 7 ZIP codes

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Claiborne

Zone 4A

Claiborne County • 7 ZIP codes

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Morgan

Zone 4A

Morgan County • 7 ZIP codes

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Scott

Zone 4A

Scott County • 7 ZIP codes

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Tipton

Zone 3A

Tipton County • 7 ZIP codes

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Henry

Zone 4A

Henry County • 7 ZIP codes

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Weakley

Zone 4A

Weakley County • 7 ZIP codes

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Hardin

Zone 3A

Hardin County • 7 ZIP codes

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Henderson

Zone 3A

Henderson County • 7 ZIP codes

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Hickman

Zone 4A

Hickman County • 6 ZIP codes

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Dickson

Zone 4A

Dickson County • 6 ZIP codes

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McMinn

Zone 4A

McMinn County • 6 ZIP codes

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Bradley

Zone 4A

Bradley County • 6 ZIP codes

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Marion

Zone 4A

Marion County • 6 ZIP codes

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Grainger

Zone 4A

Grainger County • 6 ZIP codes

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Cocke

Zone 4A

Cocke County • 6 ZIP codes

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Campbell

Zone 4A

Campbell County • 6 ZIP codes

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Sevier

Zone 4A

Sevier County • 6 ZIP codes

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Crockett

Zone 3A

Crockett County • 6 ZIP codes

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Obion

Zone 4A

Obion County • 6 ZIP codes

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Maury

Zone 4A

Maury County • 6 ZIP codes

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Wayne

Zone 4A

Wayne County • 6 ZIP codes

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Giles

Zone 4A

Giles County • 6 ZIP codes

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Putnam

Zone 4A

Putnam County • 6 ZIP codes

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Cheatham

Zone 4A

Cheatham County • 5 ZIP codes

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Coffee

Zone 4A

Coffee County • 5 ZIP codes

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Stewart

Zone 4A

Stewart County • 5 ZIP codes

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Rhea

Zone 4A

Rhea County • 5 ZIP codes

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Johnson

Zone 4A

Johnson County • 5 ZIP codes

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Jefferson

Zone 4A

Jefferson County • 5 ZIP codes

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Loudon

Zone 4A

Loudon County • 5 ZIP codes

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Hamblen

Zone 4A

Hamblen County • 5 ZIP codes

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Dyer

Zone 3A

Dyer County • 5 ZIP codes

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DeKalb

Zone 4A

DeKalb County • 4 ZIP codes

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Cannon

Zone 4A

Cannon County • 4 ZIP codes

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Marshall

Zone 4A

Marshall County • 4 ZIP codes

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Bedford

Zone 4A

Bedford County • 4 ZIP codes

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Humphreys

Zone 4A

Humphreys County • 4 ZIP codes

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Wilson

Zone 4A

Wilson County • 4 ZIP codes

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Warren

Zone 4A

Warren County • 4 ZIP codes

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Monroe

Zone 4A

Monroe County • 4 ZIP codes

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Carter

Zone 4A

Carter County • 4 ZIP codes

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Knox

Zone 4A

Knox County • 4 ZIP codes

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Roane

Zone 4A

Roane County • 4 ZIP codes

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Lauderdale

Zone 3A

Lauderdale County • 4 ZIP codes

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Benton

Zone 4A

Benton County • 4 ZIP codes

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Decatur

Zone 4A

Decatur County • 4 ZIP codes

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Chester

Zone 3A

Chester County • 4 ZIP codes

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Fentress

Zone 4A

Fentress County • 4 ZIP codes

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Jackson

Zone 4A

Jackson County • 4 ZIP codes

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White

Zone 4A

White County • 4 ZIP codes

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Houston

Zone 4A

Houston County • 3 ZIP codes

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Unicoi

Zone 4A

Unicoi County • 3 ZIP codes

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Cumberland

Zone 4A

Cumberland County • 3 ZIP codes

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Union

Zone 4A

Union County • 3 ZIP codes

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Macon

Zone 4A

Macon County • 2 ZIP codes

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Perry

Zone 4A

Perry County • 2 ZIP codes

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Meigs

Zone 4A

Meigs County • 2 ZIP codes

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Hancock

Zone 4A

Hancock County • 2 ZIP codes

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Haywood

Zone 3A

Haywood County • 2 ZIP codes

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Lake

Zone 3A

Lake County • 2 ZIP codes

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Pickett

Zone 4A

Pickett County • 2 ZIP codes

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Clay

Zone 4A

Clay County • 2 ZIP codes

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Trousdale

Zone 4A

Trousdale County • 1 ZIP codes

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Sequatchie

Zone 4A

Sequatchie County • 1 ZIP codes

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Moore

Zone 4A

Moore County • 1 ZIP codes

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Bledsoe

Zone 4A

Bledsoe County • 1 ZIP codes

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Lewis

Zone 4A

Lewis County • 1 ZIP codes

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Van Buren

Zone 4A

Van Buren County • 1 ZIP codes

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Need Professional Load Calculations?

Ensure your HVAC system meets all code requirements in Tennessee

✅ Manual J load calculation
✅ Equipment sizing recommendations
✅ Energy code compliance verification
✅ Professional report ready for permits
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Frequently Asked Questions

Everything you need to know about HVAC permits and energy code compliance in Tennessee

1What energy code does Tennessee follow?

Tennessee follows the 2021 IECC for energy efficiency requirements. This includes specific standards for HVAC equipment efficiency, duct design, and building envelope performance.

2Are Manual J calculations required in Tennessee?

Most jurisdictions in Tennessee require Manual J load calculations for proper HVAC system sizing. Our free load calculation tool can generate the professional reports you need for permits.

3How long does it take to get HVAC permits in Tennessee?

Permit processing times vary by jurisdiction, typically ranging from 1-3 weeks. Having complete documentation including load calculations can speed up the process. Check with your local building department for specific timeframes.

4Do I need different permits for different types of HVAC work?

Yes, permit requirements vary based on the scope of work. New installations typically require mechanical permits, while simple repairs may not need permits. Replacements usually require permits if there are changes to the system capacity or ductwork.

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Need Climate Zone Data for Tennessee?

Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Tennessee.

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