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):

Yes ______ No ___X___

Indicate by check mark whether by furnishing the information contained in this Form,
the Registrant 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): N/A

MATERIAL FACT

GAFISA S.A. (BOVESPA: GFSA3) (“Gafisa” or “Company”) informs that, according to the content of the Material Fact released on August 2, 2018 which may result in the election of all Board Members of the Company by a single group of shareholders, without this concentration in the decision-making power being immediately followed by a benefit for all other shareholders, its Board of Directors authorized, on this date, that the Company’s Management develops potential strategic alternatives, inclusive by means of acquisition of the Company’s control by third parties or a business combination, even if such move may also result in the replacement of the entire Board.  Thus, the Board of Executive Officers is authorized to engage financial and legal advisors to assist the Company in this process.

Gafisa will keep its shareholders and the market in general informed as soon as, and if, it makes any decision in this regard.

São Paulo, August 14, 2018.