Alexandria Real Estate Equities, Inc. Announces Tax Treatment of Year 2007 Dividend Distributions

PASADENA, Calif., Jan. 31 /PRNewswire/ -- Alexandria Real Estate Equities, Inc. announced today the tax treatment of its Year 2007 dividend distributions as described in the chart below. Shareholders are encouraged to consult with their own tax advisors as to their specific tax treatment of Alexandria Real Estate Equities, Inc. distributions.

25% Taxable 15% Sec.1250 Distributions Ordinary Capital Capital Return of Security CUSIP # per Share Dividend Gain Gain Capital Common Stock 015271109 $3.00 83.6% 10.0% 1.3% 5.1% Series B Preferred Stock 015271307 $0.9795 88.1% 10.6% 1.3% 0.0% Series C Preferred Stock 015271406 $2.09375 88.1% 10.6% 1.3% 0.0%

Alexandria Real Estate Equities, Inc. is a publicly-traded real estate investment trust focused principally on the ownership, operation, management, selective development, redevelopment and acquisition and of life science properties. Our properties are designed and improved for lease primarily to institutional (universities and independent not-for-profit institutions), pharmaceutical, biotechnology, medical device, life science product, service, biodefense and translational medicine entities, as well as related governmental agencies.