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Nashville, TN Building Safety: Green Building Code (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Program type
Voluntary, opt-in only
Residential path
LEED or EarthCraft House cert.
Commercial path
LEED + 20% water-use cut
Administered by
Dept. of Codes Administration
Enacted
Ord. BL2008-217 (2008)

Summary

Metro Nashville issues an optional "green permit" on top of the standard certificate of occupancy for buildings that earn LEED or EarthCraft House sustainable design certification.

In addition to the certificate for occupancy required pursuant to this chapter, the department of codes administration shall issue a "green permit" to any building meeting the sustainable design protocol as provided in this section.B.Developers seeking to obtain a green permit shall notify the department of codes administration of their intent in writing and provide proof of green building permit registration at the time they apply for a building permit pursuant to Chapter 16.28 of the metropolitan code.C.Upon completion of the building, the department of codes administration shall issue a green certificate of occupancy provided the following conditions have been satisfied:1.For a residential development, the applicant shall provide proof of certification from one of the following sustainable design protocols:a.The U.S. Green Building Council's LEED certification programb.The "EarthCraft House" green building program.2.For a commercial development, the applicant shall provide proof of certification from the U.S. Green Building Council's LEED certification program, and shall provide proof of compliance with the U.S. Green Building Council's water conservation qualifier, requiring that the building reduce potable water consumption by twenty percent.

Source: Metro Codes and Building SafetyView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 53 | Charter: Republication 9).

Full Breakdown

Developers who want the green permit must tell the Department of Codes Administration in writing and show proof of green building registration when they apply for the building permit under Chapter 16.28. Residential projects qualify with either U.S. Green Building Council LEED certification or the "EarthCraft House" program; commercial projects need LEED certification plus proof they cut potable water use by 20%. If certification isn't done within a year of a temporary occupancy permit, Metro issues the standard permanent occupancy permit and adds the green certificate once certification comes through.

Violations & Fines

There's no penalty for skipping it: the green permit is entirely opt-in. It only adds a second certificate; it doesn't replace or delay the standard certificate of occupancy required under Chapter 16.36.

Frequently Asked Questions

Is Nashville's green building permit mandatory?
No. It's an optional add-on for developers pursuing LEED or EarthCraft House certification, issued alongside the standard certificate of occupancy under § 16.36.050.
What must commercial buildings show for a green permit?
Proof of LEED certification plus proof the building reduces potable water consumption by 20%, per § 16.36.050(C)(2).

Sources & Official References

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