1

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   SCHEDULE TO

        TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 1)
                               (FINAL AMENDMENT)
                                       AND
                                  SCHEDULE 13D
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 15)

                    DAVIDSON DIVERSIFIED REAL ESTATE II, L.P.
- --------------------------------------------------------------------------------
                        (Name of Subject Company (Issuer)

                        AIMCO Properties, L.P. -- Offeror
- --------------------------------------------------------------------------------
            (Names of Filing Persons (Identifying Status as Offeror,
                            Issuer or Other Person))

                            Limited Partnership Units
- --------------------------------------------------------------------------------
                           (Title of Class Securities)

                                      None
- --------------------------------------------------------------------------------
                       (CUSIP Number of Class Securities)

                                 Patrick J. Foye
                            Executive Vice President
                   Apartment Investment And Management Company
                           Colorado Center, Tower Two
                   2000 South Colorado Boulevard, Suite 2-1000
                             Denver, Colorado 80222
                                 (303) 757-8081
- --------------------------------------------------------------------------------
            Name, address, and telephone numbers of person authorized
       to receive notices and communications on behalf of filing persons)

                                    Copy To:

                                Gregory M. Chait
                               Katherine M. Koops
                     Powell, Goldstein, Frazer & Murphy LLP
                   191 Peachtree Street, N.E., Sixteenth Floor
                             Atlanta, Georgia 30303
                                 (404) 572-6600

                            Calculation of Filing Fee



Transaction valuation*          Amount of filing fee
- ----------------------          --------------------
                                   
   $  3,042,700                       $   609 (previously paid)


*        For purposes of calculating the fee only. This amount assumes the
         purchase of 635.75 units of limited partnership interest of the subject
         partnership for $4,786 per unit. The amount of the filing fee equals
         1/50th of one percent of the aggregate of the cash offered by the
         bidder.

[ ]      Check the box if any part of the fee is offset as provided by Rule
         0-11(a)(2) and identify the filing with which the offsetting fee was
         previously paid. Identify the previous filing by registration statement
         number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:  $                            Filing Party:

Form or Registration No.:                             Date Filed:

                                   ----------

[ ] Check the box if the filing relates solely to preliminary communications
made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the
statement relates:


                                                    
[X] third-party tender offer subject to Rule 14d-1     [ ] going-private transaction subject to Rule 13e-3

[ ] issuer tender offer subject to Rule 13e-4          [X] amendment to Schedule 13D under Rule 13d-2


Check the following box if the filing is a final amendment reporting the results
of the tender offer: [X]


   2


CUSIP No.         NONE

1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  AIMCO PROPERTIES, L.P.
                  84-1275721

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]
3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  WC, BK

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER

         B.       SHARED VOTING POWER
                           451.25 Units

         C.       SOLE DISPOSITIVE POWER

         D.       SHARED DISPOSITIVE POWER
                           451.25 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           451.25 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]

10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                  Approximately 36.86%

11.      TYPE OF REPORTING PERSON

                  PN


   3


CUSIP No.         NONE

1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  AIMCO-GP, INC.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  Not Applicable

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER


         B.       SHARED VOTING POWER
                           451.25 Units

         C.       SOLE DISPOSITIVE POWER

         D.       SHARED DISPOSITIVE POWER
                           451.25 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           451.25 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]
10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                  Approximately 36.86%

11.      TYPE OF REPORTING PERSON

                  CO


   4


CUSIP No.         NONE

1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  APARTMENT INVESTMENT AND MANAGEMENT COMPANY
                  84-129577

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  Not Applicable

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Maryland

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER
                           0.25 Units

         B.       SHARED VOTING POWER
                           599.75 Units

         C.       SOLE DISPOSITIVE POWER
                           0.25 Units

         D.       SHARED DISPOSITIVE POWER
                           599.75 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           600 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]

10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                      Approximately 49.01%

11.      TYPE OF REPORTING PERSON

                  CO


   5


1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  INSIGNIA PROPERTIES, L.P.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  Not Applicable

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER


         B.       SHARED VOTING POWER
                     148.75 Units

         C.       SOLE DISPOSITIVE POWER


         D.       SHARED DISPOSITIVE POWER
                           148.75 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           148.75 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]

10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                  Approximately 12.15%

11.      TYPE OF REPORTING PERSON

                  PN


   6


1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  COOPER RIVER PROPERTIES, L.L.C.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  Not Applicable

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER


         B.       SHARED VOTING POWER
                           148.75 Units

         C.       SOLE DISPOSITIVE POWER

         D.       SHARED DISPOSITIVE POWER
                           148.75 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           148.75 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]

10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                  Approximately 12.15%

11.      TYPE OF REPORTING PERSON

                  OO


   7


1.       NAME OF REPORTING PERSON(S) S.S.# OR I.R.S. IDENTIFICATION NOS. OF
         ABOVE PERSONS (entities only)

                  AIMCO/IPT, INC.

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF GROUP
                                                                        (a) [ ]
                                                                        (b) [X]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS

                  Not Applicable

5.       (CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
         2(d) OR 2(e))                                                      [ ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION

                  Delaware

7.       NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON

         A.       SOLE VOTING POWER


         B.       SHARED VOTING POWER

                           122.75 Units

         C.       SOLE DISPOSITIVE POWER


         D.       SHARED DISPOSITIVE POWER
                           122.75 Units

8.       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                           122.75 Units

9.       CHECK IF THE AGGREGATE AMOUNT IN ROW (7) EXCLUDES CERTAIN SHARES
                                                                            [ ]

10.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)

                  Approximately 9.21%

11.      TYPE OF REPORTING PERSON

                  CO


   8


            TENDER OFFER STATEMENT/ AMENDMENT NO. 15 TO SCHEDULE 13D

      This is the Final Amendment to the Tender Offer Statement on Schedule TO
relating to the tender offer by AIMCO Properties, L.P., a Delaware limited
partnership, to purchase all of the outstanding units, or such lesser number of
units as are properly tendered, of limited partnership interest of Davidson
Diversified Real Estate II, L.P., a Delaware limited partnership (the
"Partnership"), at a price of $4,786 per unit, subject to the conditions set
forth in the Offer to Purchase dated February 9, 2001, and in the related Letter
of Transmittal and Acknowledgment and Agreement, which, as amended and
supplemented from time to time, together constituted the tender offer.

      At 5:00 p.m. on March 12, 2001, the offer expired pursuant to its terms. A
total of 11.5 units, representing approximately 0.94% of the outstanding units,
were validly tendered and not withdrawn pursuant to the offer. AIMCO Properties
has accepted for payment all of those units at a price of $4,786 per unit.
   9


                                    SIGNATURE

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


Date: March 23, 2001                         AIMCO PROPERTIES, L.P.

                                               By: AIMCO-GP, INC.
                                                        (General Partner)

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President

                                               AIMCO-GP, INC.

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President

                                               APARTMENT INVESTMENT
                                               AND MANAGEMENT COMPANY

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President

                                               COOPER RIVER PROPERTIES, L.L.C

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President

                                               AIMCO/IPT, Inc.
                                                        (General Partner)

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President

                                               INSIGNIA PROPERTIES, L.P.

                                               By: AIMCO/IPT, Inc.
                                                        (General Partner)

                                               By: /s/Patrick J. Foye
                                                   --------------------------
                                                   Executive Vice President