Washington, D.C. 20549

                                  SCHEDULE 13G
                                 (Rule 13d-102)

                    Under the Securities Exchange Act of 1934

                            AmeriVest Properties Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                 (CUSIP Number)

             (Date of Event Which Requires Filing of this Statement)

      (1) The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

      The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).

                                Page 1 of 5 Pages

CUSIP No. 03071L101                    13G                     Page 2 of 5 Pages
1     Name of Reporting Person
      S.S. or I.R.S. Identification No. of Above Person

      TowerView LLC.
      Employer I.D. # 13-4159490
2     Check the Appropriate Box If a Member of a Group
                                                                          a. |_|
                                                                          b. |X|
3     SEC Use Only

4     Citizenship or Place of Organization

      State of Delaware
                  5     Sole Voting Power
  Number of
   Shares               2,030,330
Beneficially            --------------------------------------------------------
  Owned By        6     Shared Voting Power
  Reporting             0
   Person               --------------------------------------------------------
    With          7     Sole Dispositive Power

                  8     Shared Dispositive Power

9     Aggregate Amount Beneficially Owned by Each Reporting Person

10    Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares  |_|

11    Percent of Class Represented By Amount in Row (9)

12    Type of Reporting Person



                                Page 2 of 5 Pages

Item 1(a).  Name of Issuer:

            The name of the issuer is AmeriVest Properties Inc. (the

Item 1(b).  Address of Issuer's Principal Executive Offices:

            The Issuer's principal executive offices are located at 1780 South
            Bellaire Street  Suite 100  Denver, Colorado 80222

Item 2(a).  Name of Person Filing:

            This report is being filed by TowerView LLC (the "Reporting

Item 2(b).  Address of Principal Business Office or, if None, Residence:

            The Reporting Person's principal business address is 500 Park
            Avenue, New York, New York 10022.

Item 2(c).  Citizenship:

            The Reporting Person is a Limited Liability Company organized under
            the laws of Delaware.

Item 2(d).  Title of Class of Securities:

            The report covers the Issuer's Common Stock (the "Shares"), Par
            value $0.001 per share.

Item 2(e).  CUSIP Number:

            The CUSIP number of the Shares is 03071L101.

Item 3.     If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or
            (c), Check Whether the Person Filing is a:

            (a) |_| Broker and dealer registered under Section 15 of the
                    Exchange Act.

            (b) |_| Bank as defined in Section 3(a)(6) of the Exchange Act.

            (c) |_| Insurance company as defined in Section 3(a)(19) of the
                    Exchange Act.

            (d) |_| Investment company registered under Section 8 of the
                    Investment Company Act.

            (e) |_| An investment adviser in accordance with Rule

            (f) |_| An employee benefit plan or endowment fund in accordance
                    with Rule 13d-1(b)(1)(ii)(F);

            (g) |_| A parent holding company or control person in accordance
                    with Rule 13d-1(b)(1)(ii)(G);

            (h) |_| A savings association as defined in Section 3(b) of the
                    Federal Deposit Insurance Act;

            (i) |_| A church plan that is excluded from the definition of an
                    investment company under Section 3(c)(14) of the Investment
                    Company Act;

            (j) |_| Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

                                Page 3 of 5 Pages

            If this statement is filed pursuant to Rule 13d-1(c), check this
            box. |X|

Item 4.     Ownership

            (a) Amount beneficially owned: As of November 10, 2006 the Reporting
            Person beneficially owned 2,030,330 shares (the "Shares") of Common

            (b) Percent of class: As of October 31, 2006 the Issuer had
            outstanding 24,114,316 shares of Common Stock. The 2,030,330 shares
            of stock held beneficially by the Reporting Person represented 8.4%
            of the outstanding shares of Common Stock.

            (c) Number of Shares as to which the Reporting Person has:

                  (i)   sole power to vote or direct the vote - 2,030,330

                  (ii)  shared power to vote or to direct the vote -- none;

                  (iii) sole power to dispose or direct the disposition of --
                        2,030,330 shares; and

                  (iv)  shared power to dispose or to direct the disposition of
                        -- none.

Item 5.     Ownership of Five Percent or Less of a Class

            If this statement is being filed to report the fact that as of the
            date hereof the reporting person has ceased to be the beneficial
            owner of more than five percent of the class of securities, check
            the following |_|.

Item 6.     Ownership of More than Five Percent on Behalf of Another Person

            Not applicable.

Item 7.     Identification and Classification of the Subsidiary Which Acquired
            The Security Being Reported on By The Parent Holding Company

            Not applicable.

Item 8.     Identification and Classification of Members of the Group

            Not applicable.

Item 9.     Notice of Dissolution of Group

            Not applicable.

Item 10.    Certification

            By signing below I certify that, to the best of my knowledge and
            belief, the securities referred to above were not acquired and are
            not held for the purpose of or with the effect of changing or
            influencing the control of the issuer of the securities and were not
            acquired and are not held in connection with or as a participant in
            any transaction having that purpose or effect.

                                Page 4 of 5 Pages


      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and

                                                  November 13, 2006

                                                 /s/ Daniel R. Tisch

                                            Daniel R. Tisch
                                            Authorized Signatory
                                            TowerView LLC

                                Page 5 of 5 Pages