1 EXHIBIT 12.1 SUMMIT PROPERTIES PARTNERSHIP, L.P. CALCULATION OF RATIOS OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) YEAR ENDED DECEMBER 31, ---------------------------------------------------- 1999 1998 1997 1996 1995 ------- -------- ------- ------- ------- Income before extraordinary items................... $59,760 $ 66,475 $31,934 $21,187 $15,051 Interest: Expense incurred................................ 37,282 32,550 20,902 16,113 13,715 Amortization of deferred financing costs........ 992 956 1,057 1,025 1,087 Rental fixed charges............................ 159 133 115 124 134 ------- -------- ------- ------- ------- Total........................................... $98,193 $100,114 $54,008 $38,449 $29,987 ======= ======== ======= ======= ======= Fixed charges: Interest expense................................ $37,282 $ 32,550 $20,902 $16,113 $13,715 Interest capitalized............................ 7,888 6,143 5,876 4,266 3,110 Dividends to preferred unitholders in 6,698 -- -- -- -- Operating Partnership........................... Rental fixed charges............................ 159 133 115 124 134 Amortization of deferred financing costs 992 956 1,057 1,025 1,087 ------- -------- ------- ------- ------- Total......................................... $53,019 $ 39,782 $27,950 $21,528 $18,046 ======= ======== ======= ======= ======= Ratio of earnings to fixed charges 1.85 2.52 1.93 1.79 1.66 ======= ======== ======= ======= =======