UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 6-K

REPORT OF FOREIGN ISSUER

PURSUANT TO RULE 13a-16 OR 15b-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2017

 Commission File Number 001-35591

GRAÑA Y MONTERO S.A.A.

(Exact name of registrant as specified in its charter)

GRAÑA Y MONTERO GROUP

(Translation of registrant's name into English)

Republic of Peru

(Jurisdiction of incorporation or organization)

Avenida Paseo de la República 4667, Lima 34,

Surquillo, Lima

Peru

(Address of principal executive offices)

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

Form 20-F ___X____ Form 40-F _______

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): [ ]

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): [ ]

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No ___X____

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable.

Lima, February 03, 2017

Messrs.,

Superintendencia del Mercado de Valores – SMV

Present. -

Reference:  Relevant Information Communication – Asset Sale

Dear Sirs:

According to the Relevant Information Communications released on January 24 and 27, 2017, we hereby inform you that our subsidiary Viva GyM S.A. has suscribed a  purchase agreement for all of its shares and rights - which represent 50% - of the property located at Avenida Perez Aranibar N° 1300 (corner with Calle Jorge Polar and Av. General Córdova) (hereinafter, "Cuartel San Martín project") with the company Urbi Propiedades S.A., who is our partner with the remaining 50% stake in the Cuartel San Martín project.

The sale price for all of the aforementioned shares and rights of Viva GyM S.A. in the Cuartel San Martin project amounts to US$ 50 million, which will be fully paid at the signing of the Public Deed which will be subscribed on April 3, 2017 at the latest.

Sincerely,

____________________

/s/ Claudia Drago Morante

Stock Market Representative

Graña y Montero S.A.A.

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.

GRAÑA Y MONTERO S.A.A.

By: /s/ CLAUDIA DRAGO MORANTE

Name: Claudia Drago Morante

Title: Stock Market Representative

Date: February 03, 2017