Fee Letter, by and among KBSIII Domain Gateway, LLC, KBS 515 Congress, LLC, KBSIII 155 North 400 West, LLC, KBSIII 1550 West McEwen Drive, LLC, KBSIII 201 17th Street, LLC and U.S. Bank National Association, dated January 23, 2020

Dear Ladies and Gentlemen:

(a)The initial loan fee for the Loan in the amount of 0.40% of the initial Committed Amount ($860,000.00), which was due and payable by Borrower to Agent for the account of

Lenders at closing of the Loan (the “Initial Commitment Fee”), which Initial Commitment Fee has been paid in full;

(b)The commitment fee for the Modification in the amount of $841,250.00 (the “Modification Fee”), which is equal to: (i) 0.150 % of the first $170,000,000 of the Committed Amount (after giving effect to the Modification), plus (ii) 0.325% of that portion of the Committed Amount (after giving effect to the Modification) greater than $170,000,000 and up to $215,000,000, plus (iii) 0.400% of that portion of the Committed Amount (after giving effect to the Modification) in excess of $215,000,000, such Modification Fee payable concurrently with the closing of the Modification;

(c)A structuring fee for the Modification in the amount of $110,000 (the “Modification Structuring Fee”), payable concurrently with the closing of the Modification.

(d)Upon exercise of each Accordion Option, a loan fee for the Loan in an amount equal to 0.40% of the amount by which the current Committed Amount is being increased in connection with each such exercise (e.g., if the Committed Amount is increased by $20,000,000, the loan fee for such increase would equal $80,000) and a loan capital markets structuring fee of 0.10% of the amount by which the current Committed Amount is being increased in connection with each such exercise (e.g., if the Committed Amount is increased by $20,000,000, the loan capital markets structuring fee for such increase would equal $20,000), the foregoing fees, if due, to be prorated based on the number of days remaining in the initial term of the Loan;

(e)Starting with the calendar quarter ending on December 31, 2018 and following the end of each subsequent calendar quarter during the term of the Loan (or the Maturity Date), an unused commitment fee accruing at a rate equal to 0.25% per annum calculated on the basis of actual days elapsed in a year consisting of 360 days upon an amount equal to the Average Daily Unused Amount (defined below) for the preceding calendar quarter (the "Unused Fee"). The Unused Fee is payable in arrears on a quarterly basis during each calendar quarter occurring during the term of the Loan (and at the Maturity Date) ten (10) days after Agent sends Borrower a written request for payment, together with the calculations evidencing the amount set forth therein when such Unused Fee is due, which fee, for the calendar quarter when the closing of the Loan occurs, shall be pro rated for the actual number of days that have elapsed during such initial calendar quarter since the closing occurred. Payment of the Unused Fee shall continue until the Maturity Date. As used herein "Average Daily Unused Amount" means, for any quarter, the aggregate of the Daily Unused Amounts for each day in the applicable quarter divided by the number of days in such quarter. As used herein "Daily Unused Amount" means, for each day, the positive difference between (i) the Committed Amount, and (ii) the outstanding principal balance of the Loan. As used herein "Committed Amount" means $215,000,000, plus the amount of any increase in the Loan in connection with the exercise of an Accordion Option, less the amount of undisbursed Loan proceeds, if any, that have been cancelled by the Borrower in writing in accordance with the terms and conditions of the Loan Agreement as set forth in Section 10.3 thereof;

(f)If Borrower exercises any of its options to extend the Maturity Date of the Loan in accordance with Sections 2.8 or 2.9 of the Loan Agreement, an extension fee for each such extension in the amount of 0.15% of an amount equal to the then existing total Committed

Amount, which fee shall be due and payable by Borrower to Agent, for account of the Lenders, on or before the applicable Maturity Date;

(g)A one-time loan capital markets structuring fee in the amount of $215,000.00 due and payable by Borrower to Agent, for its own account as Agent for the Lenders, which fee has been paid in full; and

(h)An annual administrative fee in the amount of $15,000 due and payable by Borrower to Agent, for its own account, the first such payment due and payable on the addition of a new Lender to the Loan, and each year thereafter on or before the anniversary date of the addition of a new Lender to the Loan (provided that Borrower shall have three (3) Business Days to pay such fees to Agent after written notice from Agent to Borrower that such fees are due and payable).