Granite Real Estate 6-K Current report (foreign)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

Form 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of: March, 2012 Commission File Number: 001-31728

MI DEVELOPMENTS INC.

(Name of registrant)

455 Magna Drive

2nd Floor

Aurora, Ontario

L4G 7A9

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F  o    Form 40-F  x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

DOCUMENTS FILED AS PART OF THIS FORM 6-K

See the Exhibit Index to this Form 6-K.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 19, 2012	MI DEVELOPMENTS INC.
	By:	/s/ Jennifer Tindale
		Name:	Jennifer Tindale
		Title:	Executive Vice-President, General Counsel

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FORM 6-K EXHIBIT INDEX

Exhibit No.
99.1	Press Release dated March 19, 2012

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