Common use of FORM OF ESTOPPEL CERTIFICATE Clause in Contracts

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises (the “Premises”) at ▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD BMR-530 FAIRVIEW AVENUE LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises Fairview Research Center (the “Premises”) at ▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMRB▇▇-BAYSHORE BOULEVARD ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇ LLC ▇1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises 9▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇ (the “Premises”) at ▇9▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMRBMR-6114-BAYSHORE BOULEVARD 6154 ▇▇▇▇▇ ▇▇▇▇▇ Drive LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises (the “Premises”) at ▇▇▇▇ ▇▇▇6114 ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Drive (the “Premises”) in San Diego, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ California (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD BMR-6828 ▇▇▇▇▇ ▇▇▇▇▇ Drive LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Leasing BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises Suite [ ] (the “Premises”) at ▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Drive, ▇▇▇▇▇▇▇▇San Diego, ▇▇▇▇▇▇▇▇▇▇ California (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMRBMR-6114-BAYSHORE BOULEVARD 6154 ▇▇▇▇▇ ▇▇▇▇▇ Drive LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises (the “Premises”) at ▇▇▇▇ ▇▇▇6154 ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Drive (the “Premises”) in San Diego, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ California (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD BMR-217TH PLACE LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises Suite [ ] (the “Premises”) at ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD LANDMARK AT EASTVIEW LLC ▇1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises Suite [ ] (the “Premises”) at 7▇▇ ▇▇▇ ▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇▇▇in Tarrytown, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ New York (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMRBMR-6114-BAYSHORE BOULEVARD 6154 ▇▇▇▇▇ ▇▇▇▇▇ Drive LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel Counsel/Real Estate BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises (the “Premises”) at ▇▇▇▇ ▇▇▇6118 ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Drive (the “Premises”) in San Diego, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ California (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD LLC ▇[BMR LANDLORD ENTITY] 1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇1▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises [PREMISES ADDRESS] (the “Premises”) at ▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇[STREET ADDRESS], ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ [CITY AND STATE] (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD Trade Centre Avenue LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises ▇▇▇▇-▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇ (the “Premises”) at ▇▇▇▇ ▇-▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows:

FORM OF ESTOPPEL CERTIFICATE. To: BMR-BAYSHORE BOULEVARD BMR-34790 Ardentech Court LLC ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Attention: General Counsel BioMed Realty, L.P. c/o BioMed Realty Trust, Inc. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Drive, Suite 222 San Diego, CA 92128 Re: The Premises (the “Premises”) at ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ (the “Property”) The undersigned tenant (“Tenant”) hereby certifies to you as follows: