Exhibit 12.1
 
AVALONBAY COMMUNITIES, INC.
 
RATIOS OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS
 
                               
   
Year
   
Year
   
Year
   
Year
   
Year
 
   
Ended
   
Ended
   
Ended
   
Ended
   
Ended
 
   
December 31, 2010
   
December 31, 2009 (1)
   
December 31, 2008 (1)
   
December 31, 2007 (1)
   
December 31, 2006 (1)
 
                     
Income from continuing operations before cumulative
 effect of change in accounting principle
  $ 98,068     $ 76,950     $ 99,078     $ 219,789     $ 138,154  
                                         
 (Plus):
                                       
Equity in income of unconsolidated entities,
 net of distributions received
    4,856         5,475       6,728       9,532       7,478  
Amortization of capitalized interest (2)
    15,149       14,035       12,428       9,941       7,503  
                                         
 Earnings before fixed charges
  $ 118,073     $  96,460     $ 118,234     $ 239,262     $ 153,135  
                                         
 (Plus) Fixed charges:
                                       
 Portion of rents representative
                                       
         of the interest factor
  $ 11,785     $ 6,241     $ 5,287     $ 3,165     $ 1,410  
 Interest expense
    175,209       150,323       114,910       92,175       103,910  
 Interest capitalized
    33,393       48,226       74,621       73,118       46,388  
 Preferred dividend
    --       --       10,454       8,700       8,700  
                                         
 Total fixed charges (3)
  $ 220,388     $ 204,790     $ 205,272     $ 177,158     $ 160,408  
                                         
 (Less):
                                       
 Interest capitalized
    33,393       48,226       74,621       73,118       46,388  
 Preferred dividend
    --       --       10,454       8,700       8,700  
                                         
 Earnings (4)
  $ 305,067     $ 253,024     $ 238,431     $ 334,602     $ 258,455  
                                         
 Ratio (4 divided by 3)
    1.38       1.24       1.17       1.89       1.61  
                                         
 
AVALONBAY COMMUNITIES, INC.
 
RATIOS OF EARNINGS TO FIXED CHARGES
 
                               
   
Year
   
Year
   
Year
   
Year
   
Year
 
   
Ended
   
Ended
   
Ended
   
Ended
   
Ended
 
   
December 31, 2010
   
December 31, 2009 (1)
   
December 31, 2008 (1)
   
December 31, 2007 (1)
   
December 31, 2006 (1)
 
                     
Income from continuing operations before cumulative
 effect of change in accounting principle
  $ 98,068     $ 76,950     $ 99,078     $ 219,789     $ 138,154  
                                         
 (Plus):
                                       
Equity in income of unconsolidated entities,
 net of distributions received
    4,856        5,475       6,728       9,532       7,478  
Amortization of capitalized interest (2)
    15,149       14,035       12,428       9,941       7,503  
                                         
 Earnings before fixed charges
  $ 118,073     $  96,460     $ 118,234     $ 239,262     $ 153,135  
                                         
 (Plus) Fixed charges:
                                       
 Portion of rents representative
                                       
         of the interest factor
  $ 11,785     $ 6,241     $ 5,287     $ 3,165     $ 1,410  
 Interest expense
    175,209       150,323       114,910       92,175       103,910  
 Interest capitalized
    33,393       48,226       74,621       73,118       46,388  
                                         
 Total fixed charges (3)
  $ 220,388     $ 204,790     $ 194,818     $ 168,458     $ 151,708  
                                         
 (Less):
                                       
 Interest capitalized
    33,393       48,226       74,621       73,118       46,388  
                                         
 Earnings (4)
  $ 305,067     $ 253,024     $ 238,431     $ 334,602     $ 258,455  
                                         
 Ratio (4 divided by 3)
    1.38       1.24       1.22       1.99       1.70  
 
(1)
The results of operations for 2006 through 2010 have been adjusted to reflect discontinued operations for properties sold or held for sale as of December 31, 2010.
(2)
Represents an estimate of capitalized interest costs based on the Company's established depreciation policy and an analysis of interest costs
 
capitalized since 1998 (the year in which AvalonBay was formed).