EXHIBIT 12 EQUITY RESIDENTIAL PROPERTIES TRUST Consolidated and Combined Historical, Including Predecessor Business Earnings to Combined Fixed Charges and Preferred Distributions Ratio Historical ------------------------------------------------------------------- 09/30/98 09/30/97 12/31/97 12/31/96 12/31/95 12/31/94 --------- -------- --------- --------- --------- --------- (Amounts in thousands) REVENUES Rental income $ 901,087 $482,980 $ 707,733 $ 454,412 $ 373,919 $ 220,727 Fee income - outside managed 4,204 4,364 5,697 6,749 7,030 4,739 Interest income - investment in mortgage notes 14,405 14,821 20,366 12,819 4,862 - Interest and other income 12,994 7,513 13,525 4,405 4,573 5,568 --------- -------- --------- --------- --------- --------- Total revenues 932,690 509,678 747,321 478,385 390,384 231,034 --------- -------- --------- --------- --------- --------- EXPENSES Property and maintenance 224,457 117,681 176,075 127,172 112,186 66,534 Real estate taxes and insurance 88,552 48,560 69,520 44,128 37,002 23,028 Property management 38,278 18,765 26,793 17,512 15,213 10,249 Property management - non-recurring - - - - - 879 Fee and asset management 3,289 2,523 3,364 3,837 3,887 2,056 Depreciation 208,394 106,114 156,644 93,253 72,410 37,273 Interest: Expense incurred 170,143 82,775 121,324 81,351 78,375 37,044 Amortization of deferred financing costs 1,962 1,810 2,523 4,242 3,444 1,930 General and administrative 15,598 10,037 15,064 9,857 8,129 6,053 --------- -------- --------- --------- --------- --------- Total expenses 750,673 388,265 571,307 381,352 330,646 185,046 --------- -------- --------- --------- --------- --------- Income before extraordinary items $ 182,017 $121,413 $ 176,014 $ 97,033 $ 59,738 $ 45,988 ========= ======== ========= ========= ========= ========= Combined Fixed Charges and Preferred Distributions: Interest and other financing costs $ 170,143 $ 82,775 $ 121,324 $ 81,351 $ 78,375 $ 37,044 Amortization of deferred financing costs 1,962 1,810 2,523 4,242 3,444 1,930 Preferred distributions 65,075 37,287 59,012 29,015 10,109 - --------- -------- --------- --------- --------- --------- Total Combined Fixed Charges and Preferred Distributions $ 237,180 $121,872 $ 182,859 $ 114,608 $ 91,928 $ 38,974 ========= ======== ========= ========= ========= ========= Earnings before combined fixed charges and preferred distributions $ 354,122 $205,998 $ 299,861 $ 182,626 $ 141,557 $ 84,962 ========= ======== ========= ========= ========= ========= Funds from operations before combined fixed charges and preferred distributions $ 562,516 $312,112 $ 456,505 $ 275,879 $ 213,967 $ 122,235 ========= ======== ========= ========= ========= ========= Ratio of earnings before combined fixed charges and preferred distributions to combined fixed charges and preferred distributions 1.49 1.69 1.64 1.59 1.54 2.18 ========= ======== ========= ========= ========= ========= Ratio of funds from operations before combined fixed charges and preferred distributions to combined fixed charges and preferred distributions 2.37 2.56 2.50 2.41 2.33 3.14 ========= ======== ========= ========= ========= =========