Exhibit 5.1


                 Opinion of Akerman, Senterfitt & Eidson, P.A.
      regarding the legality of the Class A common stock being registered


                                September 10, 2001


SBA Communications Corporation
One Town Center Road
Third Floor
Boca Raton, FL  33486

Ladies and Gentlemen:

     We have acted as counsel to SBA Communications Corporation, a Florida
corporation (the "Company"), in connection with the preparation and filing with
the Securities and Exchange Commission of a Registration Statement on Form S-8
(the "Registration Statement"), under the Securities Act of 1933, as amended
(the "Securities Act").  Such Registration Statement relates to the registration
by the Company of 5,000,000 shares (the "Shares") of the Company's Class A
common stock, $.01 par value per share, issuable pursuant to the Company 2001
Equity Participation Plan (the "2001 Plan").

     In connection with the Registration Statement, we have examined, considered
and relied upon copies of the following documents: (1) the Company's Articles of
Incorporation and Bylaws, as amended, (2) the 2001 Plan and (3) such other
documents and instruments that we have deemed necessary for the expression of
the opinions contained herein.  In our examination of the aforesaid documents,
we have assumed, without independent investigation, the genuineness of all
signatures, the legal capacity of all individuals who have executed any of the
documents, the authenticity of all documents submitted to us as originals and
the conformity to the original documents of all copies.

     Based upon the foregoing examination, we are of the opinion that the Shares
have been duly authorized and, when issued, will be validly issued, fully paid
and non-assessable.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.  In giving such consent, we do not thereby admit that we
are included within the category of persons whose consent is required under
Section 7 of the Securities Act or the rules and regulations promulgated
thereunder.

                                    Sincerely,

                                    AKERMAN, SENTERFITT & EIDSON, P.A.