24 Tenant Security Deposits and Other Restricted Cash Contractual Obligations and Commitments Contractual obligations as of December 31, 2003, consists of the following (dollars in thousands): Secured notes payable as of December 31, 2003 includes 16 notes secured by 39 properties. Ground lease obligations as of December 31, 2003 include leases at six of our properties and one land development parcel. These lease obligations have remaining lease terms of 29 to 51 years, exclusive of extension options. In addition to the above, we were committed under the terms of construction contracts to complete the construction of properties under development at a remaining aggregate cost of $11.7 million. As of December 31, 2003, we were also committed to fund approximately $12.5 million for the construction of building infrastruc- ture improvements under the terms of leases and/or construction contracts and approximately $19.5 million for certain investments. Tenant security deposits and other restricted cash consists of the following (in thousands): As of December 31, 2003 2002 Funds held in trust under the terms of certain secured notes payable $ 8,665 $ 5,692 Security deposit funds based on the terms of certain lease agreements 2,029 1,967 Other funds held in escrow 363 361 $11,057 $ 8,020 PAYMENTS BY PERIOD Total 2004 2005-2006 2007-2008 Thereafter Secured notes payable (1) $319,755 $ 9,415 $53,941 $52,982 $ 203,417 Ground lease obligations 65,420 1,666 3,529 3,631 56,594 Other obligations 737 495 242 - - Total $385,912 $11,576 $57,712 $56,613 $ 260,011 (1) Excludes unamortized premium of $252,000 as of December 31, 2003.