Exhibit 99.1

                        [Acuity Brands, Inc. Letterhead]

COMPANY CONTACT:
KAREN HOLCOM
ACUITY BRANDS, INC.
(404) 853-1437

                           ACUITY BRANDS LIMITS SHARES
                   TO BE ISSUED UNDER LONG-TERM INCENTIVE PLAN

ATLANTA, DECEMBER 16, 2003 - Acuity Brands, Inc. (NYSE: AYI) announced today
that it will not issue more than three million of the additional shares being
authorized under the amended and restated Long-Term Incentive Plan without
seeking further approval of shareholders. The Plan as now proposed for approval
by shareholders at the annual meeting on December 18 would otherwise add five
million shares to those available for issuance under the Plan.

James S. Balloun, Acuity Brands' Chairman, President, and Chief Executive
Officer, said: "Our Board of Directors has imposed this limitation in response
to feedback from shareholders. While the additional shares we originally sought
were within limits established by the leading institutional proxy advisory
services, a number of our shareholders indicated to us that they wanted the
opportunity to evaluate our long-term awards more frequently. The commitment we
are announcing today will provide that opportunity."

Acuity Brands, Inc., with fiscal year 2003 net sales of approximately $2.0
billion, is comprised of Acuity Brands Lighting and Acuity Specialty Products.
Acuity Brands Lighting is a world leader in lighting fixtures and includes
brands such as Lithonia Lighting(R), Holophane(R), Peerless(R), Hydrel(R), and
American Electric Lighting(R). Acuity Specialty Products is a leading provider
of specialty chemicals and includes brands such as Zep(R), Enforcer(R), and
Selig Industries(TM). Headquartered in Atlanta, Georgia, Acuity Brands employs
approximately 11,400 people and has operations throughout North America and in
Europe and Asia.



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