EXHIBIT 12.1 SUMMIT PROPERTIES PARTNERSHIP, L.P. CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES NINE MONTHS ENDED SEPTEMBER 30, 2001 (DOLLARS IN THOUSANDS) Earnings: Net Income before extraordinary items ..................................................... $48,954 Interest: Expense incurred ......................................................................... 30,089 Amortization of deferred financing costs ................................................. 1,079 Rental fixed charges ..................................................................... 254 ------- Total .................................................................................... $80,376 ======= Fixed charges: Interest expense ............................................................................ $30,089 Interest capitalized ........................................................................ 9,035 Distributions to preferred unitholders in Operating Partnership ............................. 9,315 Rental fixed charges ........................................................................ 254 Amortization of deferred financing costs .................................................... 1,079 ------- Total .................................................................................... $49,772 ======= Ratio of earnings to fixed charges ................................................................. 1.61 =======