EXHIBIT 12.1 SUMMIT PROPERTIES PARTNERSHIP, L.P. CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES NINE MONTHS ENDED SEPTEMBER 30, 2002 Net Income $57,847 Interest: Expense incurred 26,589 Amortization of deferred financing costs 918 Rental fixed charges 258 ------- Total $85,612 ======= Fixed charges: Interest expense $26,589 Interest capitalized 7,680 Distributions to preferred unitholders in operating parthership 9,315 Rental fixed charges 258 Amortization of deferred financing costs 918 ------- Total $44,760 ======= Ratio of earnings to fixed charges 1.91 =======