CBRE 401(k) PLAN SUMMARY PLAN DESCRIPTION

1 CBRE 401(k) plan SUMMARY plan DESCRIPTION FEBRUARY 2012 2 CBRE 401(k) plan SUMMARY plan DESCRIPTION (and Prospectus under the Securities Act) We all plan for the future and look forward to the time when we can retire with a dependable income for the rest of our lives. The CBRE 401(k) plan is provided to help you achieve financial security during your retirement years. This SUMMARY plan DESCRIPTION summarizes the provisions of the plan . We urge you to read it carefully for a better understanding of the benefits that are available to you. This document is intended only as a SUMMARY . Every effort has been made to describe the provisions of the plan accurately.

2 You should consult the plan document in the event you have any questions about your benefits and the provisions of the plan that this document does not answer. In the event of any discrepancy between this SUMMARY and the actual provisions of the plan , the plan will govern. You may become more familiar with your plan by reading the documents that are available at your Human Resources Office during regular business hours. You may obtain your own copy of the documents by writing to your plan Administrator. There may be a small charge for this service. CBRE expects to maintain the plan indefinitely. However, it has reserved the right to amend or terminate the plan at any time should it be considered desirable or necessary. No amendment, however, may take away any portion of your account that has vested. If the plan is terminated, distribution of account balances will be made at the time determined by the plan Administrator.

3 In addition to being a SUMMARY plan DESCRIPTION , this document is also a prospectus. CB RE Group, Inc. has filed a registration statement under the Securities Act of 1933 to register the participation interests in the plan and the shares that are available under the plan -- 1,875,000 shares of CBRE Group, Inc. Class A Common Stock, par value $ per share. This prospectus is a part of the registration statement. CBRE Group, Inc. has not authorized anyone to provide you information that is different from the information contained in the registration statement or the documents which have been incorporated by reference into the registration statement. The plan is administered by the CBRE 401(k) Administrative Committee, a committee appointed by the CEO of CBRE Services, Inc. The plan Administrator has discretionary authority to construe the terms of the plan and make determinations on questions that may affect your eligibility for benefits.

4 The records of the plan are maintained by Merrill Lynch. Merrill Lynch is your principal contact for enrollment, investment choices, loans, withdrawals and distributions. Merrill Lynch will answer any questions you may have about the plan . Merrill Lynch can be reached by telephone at (888) 363-2385, from 7 am to 9 pm (central time) on all days that the New York Stock Exchange is open, or by accessing Benefits OnLine at The assets of the plan are held in trust by Bank of America, 3 TABLE OF CONTENTS 1. ELIGIBILITY .. 3 2. ENROLLMENT .. 3 3. CONTRIBUTIONS .. 4 4. CHOOSING YOUR INVESTMENTS .. 4 5. THE CBRE STOCK FUND .. 6 6. VESTING .. 10 7. LOANS .. 10 8. WITHDRAWALS DURING EMPLOYMENT .. 11 9. DISTRIBUTIONS OF BENEFITS .. 13 10. QUALIFIED DOMESTIC RELATIONS ORDER .. 14 11. YOUR ERISA RIGHTS .. 14 12. CLAIMING YOUR BENEFITS.

5 15 13. ADDITIONAL INFORMATION .. 17 14. APPENDIX A -- FUND PERFORMANCE .. 19 1. ELIGIBILITY You are eligible to participate in the plan if you are an employee of CBRE Services, Inc. or any other company that participates in the plan , unless you are: a non-resident alien with no source income from your employer, covered under a collective bargaining agreement that does not expressly provide for participation in the plan , classified as a leased employee or an independent contractor, even if you are subsequently determined to be a common law employee, in the service of the armed forces of the United States, covered by another CBRE tax-qualified plan , or a qualified real estate agent (QREA) having the status of an independent contractor under section 3508 of the Internal Revenue Code. 2. ENROLLMENT To participate in the plan , you must contact Merrill Lynch.

6 The enrollment process works as follows: CBRE provides Merrill Lynch via electronic file your personal information (name, address, birth date, etc.). Merrill Lynch generates a personalized identification number (PIN) and sends it to your home address. You can then enroll in the plan by contacting Merrill Lynch. Once you enroll, Merrill Lynch will send to your home address confirmation of your deferral contribution percentage and the investment funds you selected and will send an electronic file to CBRE, which contains the deferral contribution percentage to be deducted from your paycheck. Generally, this process takes at least four weeks from the date your new hire paperwork is processed in payroll. After you have contacted Merrill Lynch, your active participation usually begins within one or two pay periods. 4 3. CONTRIBUTIONS You may elect to defer up to 75% of your compensation (including salary, bonuses, commissions, cafeteria plan contributions, and 401(k) contributions).

7 You may change your deferral election at any time. Your total deferrals in any calendar year may not exceed a dollar limit set by law. For 2012, the basic limit is $17,000. If you will have attained age 50 by the end of the calendar year, there is an additional catch-up limit of $5,500, for a total limit of $22,500. The plan Administrator will notify you of the maximum amount you may defer each year. The amount you elect to defer, and any earnings on that amount, will not be subject to income tax until distributed to you. Your contributions will, however, be subject to FICA (Social Security and Medicare) taxes. If you will have attained age 50 by the end of the calendar year, catch-up contributions will automatically be deducted from your paycheck once you hit the basic limit. If you do not wish to make catch-up contributions, you must contact Merrill Lynch and change your deferral election to 0% percent as soon as you reach the basic limit.

8 If you take time off for qualified military service, you can make contributions upon your return to the extent of the sum of the annual limits while you were in qualified military service. Under some circumstances, federal regulations may limit the amount employees at higher income levels are allowed to contribute to ensure that the plan does not favor those employees. You will be notified if a reduction in your contribution level is necessary. CBRE makes matching contributions equal to $1 for every $2 of deferrals, except that deferrals in excess of 3% of compensation are not matched and compensation recognized for the match is limited to $150,000 per year. The plan accepts rollover contributions from other retirement plans in which you have participated. If you have funds that you would like to roll over, you should contact Merrill Lynch to see if your rollover funds qualify.

9 You may make a withdrawal from your rollover account at any time. 4. CHOOSING YOUR INVESTMENTS You have the responsibility to decide how your account will be invested. The investment funds that are available to you are described at The annual return of each option for each of the last three years is shown in Appendix A. You may invest all of your account in one fund, or you may divide your account among the various funds in multiples of 1%. You may change your investments at any time. You may: change the way your future contributions will be invested (indicate the percentage of your contributions you wish to be invested in one or more funds), or reallocate or exchange your existing account among the funds (you must specify a dollar amount, percentage or number of shares to be transferred from one fund to another).

10 Some of the funds may have investment restrictions or redemption fees. If a fund has an investment restriction, you cannot transfer into the fund if you have recently transferred out of the fund. If a fund has redemption fees, the fees will apply if you transfer into the fund and then transfer out within a short period of time. Before you make a transfer with respect to a fund that 5 imposes investment restrictions or redemption fees, Merrill Lynch will notify you. You can find more information in the fund fact sheets and at In addition, the plan may impose limits on the frequency of transfers between funds to avoid day trading and other short-term trading strategies. Before making a change to another fund, you should request and read a copy of the latest prospectus available for that fund, if applicable. Prospectuses may be requested from Merrill Lynch.