SECURITIES AND EXCHANGE COMMISSION
                          Washington, D.C. 20549

                              SCHEDULE 13D/A

                Under the Securities Exchange Act of 1934
                           (Amendment No. 5)*

                    CB RICHARD ELLIS SERVICES, INC.
                ----------------------------------------
                           (Name of Issuer)


                    Common Stock, $0.01 par value
                ----------------------------------------
                   (Title of Class of Securities)


                              12489L108
                ----------------------------------------
                           (CUSIP Number)

                            Donald M. Koll
                        4343 Von Karman Avenue
                    Newport Beach, California 92660
                            (949) 833-3023
                -----------------------------------------
        (Name, Address and Telephone Number of Person Authorized
                  to Receive Notices and Communications)

                           With a copy to:
                          Gary J. Singer, Esq.
                        O'Melveny & Myers LLP
                       610 Newport Center Drive
                             Suite 1700
                    Newport Beach, California 92660

                              May 23, 2001
                ----------------------------------------
         (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule
13G to report the acquisition which is the subject of this
Schedule 13D, and is filing this schedule because of Rule
13d-1(b)(3) or(4), check the following box. [  ]

*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).



          This Amendment No. 5 amends the Statement on
Schedule 13D filed with the Securities and Exchange
Commission (the "Commission") with respect to CB Richard
Ellis Services, Inc. (the "Issuer") on November 15, 2000,
Amendment No. 1 as filed with the Commission on December 4,
2000, Amendment No. 2 as filed with the Commission on March
1, 2001, Amendment No. 3 as filed with the Commission on
May 1, 2001 and Amendment No. 4 as filed with the Commission
on May 3, 2001 (as amended, the "Schedule 13D") by Donald M.
Koll, the Donald M. Koll Separate Property Trust u/d/t April
8, 1999, The Koll Company and The Koll Holding Company.
Unless otherwise defined herein, all capitalized terms shall
have the meanings ascribed to them in the Schedule 13D.

          Item 3 of the Schedule 13D is hereby amended and
supplemented as follows:

Item 3.        Source of Funds and Other Consideration.

          Item 3 of the Schedule 13D is hereby supplemented
by inserting the following paragraphs immediately prior to
the last paragraph therein:

          On May 23, 2001, Newco indicated its intention to
offer for sale $175 million aggregate principal amount of
Senior Subordinated Notes due 2011 (the "Senior Subordinated
Notes").

          The Senior Subordinated Notes are being offered in
order to finance in part the CBRE Merger and related
transactions and will be assumed by the Issuer if the CBRE
Merger is completed.  If the sale of $175 million of Senior
Subordinated Notes is completed, the aggregate principal
amount of Term Loans will be reduced to $260 million, the
aggregate principal amount of the Revolving Loan will be
reduced to $100 million and the aggregate principal amount
of 16% Senior Notes due 2011 proposed to be issued by
Holding will be reduced to $65 million.

          This Schedule 13D shall not constitute an offer to
sell or the solicitation of an offer to buy any securities,
nor shall there be any sale of the securities in any
jurisdiction in which such offer, solicitation or sale would
be unlawful.  The Senior Subordinated Notes to be offered
and sold will not be registered under the Securities Act,
and may not be offered or sold in the United States absent
registration or an applicable exemption from the
registration requirements of the Securities Act.



                                 SIGNATURES

After reasonable inquiry and to the best of our knowledge and
belief, we certify that the information set forth in
this statement is true, complete and correct.

Dated:    May 24, 2001

                                   DONALD M. KOLL,
                                   an individual


                                   /s/ Donald M. Koll
                                   ------------------------------


                                   KOLL SEPARATE PROPERTY TRUST
                                   u/d/t April 8, 1999


                                   By: /s/ Donald M. Koll
                                       --------------------------
                                       Donald M. Koll
                                       Trustee


                                   THE KOLL COMPANY,
                                   a California corporation


                                   By: /s/ Donald M. Koll
                                       --------------------------
                                       Donald M. Koll
                                       Chairman of the Board and
                                       Chief Executive Officer


                                   THE KOLL HOLDING COMPANY,
                                   a California corporation

                                   By: /s/ Donald M. Koll
                                       --------------------------
                                       Donald M. Koll
                                       President