STATE OF SOUTH CAROLINA )

) LEASE AGREEMENT

COUNTY OF BERKELEY )

THIS LEASE AGREEMENT (the "Lease") executed this 13th day of October,1999, to be effective as of this date, by and between DUCK POND CREEK, LLC, a South Carolina limited liability company ("Landlord") and BLACKBAUD, INC., a South Carolina corporation, ("Tenant").

WITNESSETH:

WHEREAS, Landlord is developing an office building on a parcel of land located on Daniel Island in Berkeley County in the City of Charleston, South Carolina; and

WHEREAS, Landlord desires to lease to Tenant and Tenant desires to lease from Landlord the Property as defined herein subject to all terms and conditions as set forth hereinafter;

NOW, THEREFORE, for and in consideration of the sum of Ten Dollars ($10.00) in hand paid by Tenant to Landlord, the receipt and sufficiency of which are hereby acknowledged and in consideration of the rents to be paid to Landlord by Tenant, and covenants and agreements herein agreed to be performed by Landlord and Tenant, Landlord does hereby grant and lease to Tenant the following described property (the "Property"), subject to the following terms and conditions:

1. Property. The Property is hereby described as that certain real property located in Berkeley County, South Carolina as more particularly described in Exhibit A, which is attached to this Agreement and made a part hereof. The Property includes all buildings and improvements located or to be located thereon.

2. Term. The term ("Term") of this Lease shall be ten (10) years after thirty (30) days following the issuance of a Certificate of Occupancy, as hereinafter defined, for the office building being constructed on the Property by Landlord (the "Commencement Date"), with two (2) five (5) year options by Tenant to renew. Tenant shall provide Landlord with not less than one hundred eighty (180) days' prior written notice of exercise of the options to renew. Base Rent for any such renewal terms (s) shall be in the amount set forth in Exhibit B hereto. Promptly after the Commencement Date, Tenant and Landlord shall execute and deliver a written notice confirming the Commencement Date and the end of the initial term and each renewal term hereunder. As used herein, the term "Certificate of Occupancy" shall mean, collectively, any certificate of occupancy, certificate of completion or any other certificate of approval issued or to be issued by a governmental authority necessary for the use and occupancy by Tenant of the office building.

3. Net Lease. UNLESS OTHERWISE PROVIDED IN THIS LEASE (INCLUDING IN SECTIONS 5 AND 10 HEREOF), THIS IS AN ABSOLUTELY NET LEASE AND LANDLORD SHALL NOT BE REQUIRED TO PAY ANY EXPENSE, TO PROVIDE ANY SERVICES, OR TO DO ANY ACT OR THING WITH RESPECT TO THE PROPERTY, INCLUDING THE BUILDING, IMPROVEMENTS, OR ANY APPURTENANCES TO SAME. THE RENT PAYABLE UNDER THIS LEASE SHALL BE PAID TO LANDLORD WITHOUT ANY CLAIM ON THE PART OF TENANT FOR DIMINUTION, SET-OFF OR ABATEMENT AND NOTHING SHALL SUSPEND, ABATE OR REDUCE ANY RENT TO BE PAID HEREUNDER, EXCEPT AS OTHERWISE PROVIDED IN THIS LEASE (INCLUDING IN SECTIONS 5 AND 10 HEREOF).

4. Rental.

(a) Monthly Rental. During the Term hereof, Tenant shall pay to Landlord a monthly base rent (the "Base Rent") as set forth on Exhibit B attached hereto and incorporated by reference herein. Rent shall be due and payable on the first (1st) day of each month with any partial month to be pro-rated.

(b) Additional Rent. During the Term hereof, in addition to the monthly Base Rent, Tenant shall pay additional rent ("Additional Rent") as follows:

[1] Utilities. Tenant agrees to have all utilities placed in its name (and Landlord shall reasonably cooperate therewith) and pay all utilities for the Property, including, but not limited to, gas, water, sewer, electricity, and disposal waste fees.

[2] Real Estate Taxes and Assessments. Tenant shall pay all real estate taxes and assessments, including any fees in lieu of taxes, both general and special, which may be levied or assessed by the taxing authorities against the land, buildings and all other improvements within or constituting the Property on or before the due date without any further notice from Landlord.

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