Exhibit 10.1

General Electric Capital Corporation

901 Main Avenue

Norwalk, Connecticut 06851

July 15, 2015

BRE Imagination Holdco LLC

c/o The Blackstone Group

345 Park Avenue, 42nd Floor

New York, New York 10154

Attention: William Stein and Judy Turchin

Re: Letter Agreement (“Letter Agreement”) detailing certain amendments to the Purchase and Sale Agreement

Ladies and Gentlemen:

Reference is hereby made to that certain Purchase and Sale Agreement, dated as of April 10, 2015 (the “Purchase Agreement”), by and among General Electric Capital Corporation, a Delaware corporation (“Seller”, and, in its capacity as the Seller Representative under the Purchase Agreement, the “Seller Representative”), on the one hand, and BRE Imagination Holdco LLC, a Delaware limited liability company, BRE Imagination Germany I LLC, a Delaware limited liability company, and BRE Imagination Germany II LLC, a Delaware limited liability company (collectively, “Purchaser”), on the other hand. Capitalized terms used but not defined herein shall have the meaning given to such terms in the Purchase Agreement.

“Notwithstanding the foregoing, in no event shall the Unadjusted Purchase Prices set forth on Schedule 1 or Schedule 3, as applicable, for the following assets be adjusted pursuant to Section 1.2 or Section 1.4 of this Agreement (and the applicable Unadjusted Purchase Prices set forth on Schedule 1 or Schedule 3, as applicable, shall be included for such assets in the Estimated Initial Equity Purchase Price or the Estimated Initial Deferred Purchase Price, as applicable, without any such further adjustment):

(A) the Purchased Interests on Schedule 1 with respect to the Purchased Entity known as “Martinez Cogen Limited Partnership”;

(B) the Purchased Interests on Schedule 3 with respect to the Purchased Entities known as “Artemis Zweite Grundstücksver-waltungsgesellschaft mbH & Co. Beteiligungs KG”, “Artemis Vierte Grundstücksver-waltungsgesellschaft mbH & Co. Beteiligungs KG”, “Artemis Grundstücksver-waltungsgesellschaft mbH & Co. Beteiligungs KG”, “Artemis Dritte Grundstücksver-waltungsgesellschaft mbH & Co. Beteiligungs KG”, and “Artemis Grundstücksver-waltungsgesellschaft mbH”;

(C) the Purchased Interests on Schedule 3 with respect to the Purchased Entity known as “Petrarca Fondo Comune di Investimento di Tipo Chiuso”; and

(D) the Purchased Interests on Schedule 1 with respect to the Purchased Entity known as “Kimex Retail Land and Development Fund I, LP” (the “Kimco Interest”) (except that, solely with respect to the Equity Asset described in this clause (D), the applicable Unadjusted Purchase Price set forth on Schedule 1 with respect to such Equity Asset shall be (x) increased (on a dollar-for-dollar basis) at the applicable Closing by an amount equal to any capital contributions made by any Seller Party or Affiliate thereof to such Purchased Entity from March 31, 2015 through the applicable Closing Date, and (y) decreased (on a dollar-for-dollar basis) at the applicable Closing by an amount equal to any distribution received by any Seller Party or Affiliate thereof from such Purchased Entity from March 31, 2015 through the applicable Closing Date.”

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“Except to the extent provided for in Section 5.5(b), Transfer Taxes arising as a result of the Transactions shall be for the account of the Seller Parties, other than Transfer Taxes (if any) arising as a result of the Transactions set forth in Schedule 5.5(a); provided, however, that the Purchaser Parties shall bear EUR 5,000,000 of Transfer Taxes relating to the transfer of French-situated Equity Entities or Properties otherwise to be borne by the Seller Parties under this Section 5.5, which amount shall be in addition to the amount of any Transfer Taxes which may be due on the Transactions set forth on Schedule 5.5(a).”

“In respect of European situated Equity Entities or Properties, any Transfer Taxes for the account of, or borne by, the Seller Parties pursuant to this Section 5.5 shall be paid, (i) by a Seller Party directly to the relevant Tax Authority so far as permitted by applicable Laws, or (ii) where Transfer Taxes are required to be paid to the relevant Tax Authority by a notary pursuant to applicable Laws, by the concerned Purchaser Party to such notary as part of the Unadjusted Purchase Price to the extent such Transfer Taxes are non-recoverable, or (iii) otherwise shall be paid to a Purchaser Party for payment by such Purchaser Party to the relevant Tax Authority. Any Transfer Taxes for the account of, or borne by, the Purchaser Parties pursuant to this Section 5.5 (except for any Transfer Taxes to be borne by the Purchaser Parties pursuant to Section 5.5(a) in respect of the transfer of French-situated Equity Entities or Properties) shall be paid, (x) by a Purchaser Party directly to the relevant Tax Authority so far as permitted by applicable Laws, in which case the Unadjusted Purchase Price shall not be reduced by such Transfer Taxes, or (y) otherwise shall be paid to a Seller Party for Payment by such Seller Party to the relevant Tax Authority. Where a payment is required between Parties pursuant to this Section 5.5(c), the Parties agree to use their respective Commercially Reasonable Efforts to ensure that payments are made between the Seller Party actually selling the relevant Purchased Interest, Transferred Property or Purchased Commercial Loan and the Purchaser Party actually purchasing such relevant Purchased Interest, Transferred Property or Purchased Commercial Loan by way of an adjustment to the Unadjusted Purchase Price.”

“The Seller Parties shall prepare all Tax Returns of the Purchased Entities and any Subsidiaries thereof for periods ending on or prior to the applicable Closing Date (“Pre-Closing Tax Periods”). All such Tax Returns shall be prepared consistent with the past practices of the Seller Parties unless otherwise required by applicable law. Regarding any such Tax Returns prepared after the Closing Date (except for (x) any Tax Returns to be filed with a Tax Authority in Mexico with respect to income (the “Mexico Tax Returns”), and (y) any Tax Returns related to value added Taxes (the “VAT Tax Returns”)), the Seller Parties shall deliver, or cause to be delivered, to the Purchaser Parties a draft of each such Tax Return (on a stand-alone pro forma basis) at least thirty (30) days before the due date for filing, including any applicable extensions (unless the applicable due date is less than sixty (60) days after the Closing Date, in which case the Seller Parties shall deliver, or cause to be delivered, to the Purchaser Parties such draft Tax Returns within a reasonable time prior to filing). The Purchaser Parties shall have fifteen (15) days from the receipt thereof to provide the Seller Parties with any comments or proposed adjustments to such draft Tax Returns for the Pre-Closing Tax Periods, and any such comments or proposed adjustments shall be considered by the Seller Parties in good faith. Regarding any such Mexico Tax Returns or VAT Tax Returns prepared after the Closing Date, the Seller Parties shall deliver, or cause to be delivered, to the Purchaser Parties a draft of each such Mexico Tax Return or VAT Tax Return (on a stand-alone pro forma basis) at least five (5) Business Days before the due date for filing, including any applicable extensions (unless the applicable due date is less than five (5) Business Days after the Closing Date, in which case the Seller Parties shall deliver, or cause to be delivered, to the Purchasing Parties such draft Mexico Tax Returns or VAT Tax Returns within a reasonable time prior to filing). The Purchaser Parties shall have three (3) Business Days from the receipt thereof to provide the Seller Parties with any comments or proposed adjustments to such draft Mexico Tax Returns or VAT Tax Returns for the Pre-Closing Tax Periods, and any such comments or proposed adjustments shall be considered by the Seller Parties in good faith. The Seller Parties shall timely file, or cause to be timely filed, such Tax Returns (including Mexico Tax Returns and VAT Tax Returns) for the Pre-Closing Tax Periods and timely pay, or cause to be timely paid, all Taxes shown as due thereon.”

“Except (i) as otherwise provided in this Section 5.8(a), (ii) as set forth on Schedule 5.1(i)(E), or (iii) pursuant to an Alternative Transaction undertaken in accordance with Section 1.5 (specifically including any requirements for consent set forth therein), no election pursuant to Section 338(g) of the Code (or any corresponding provision of state, local, or foreign Tax Law) shall be made with respect to the Transactions contemplated by this Agreement without the prior written consent of the applicable Purchaser Parties and applicable Seller Parties. Any request by any Party to make such election shall be given good faith consideration by the other Party. Notwithstanding anything to the contrary in this Section 5.8(a), the applicable Purchaser Parties shall make a valid and timely election under Section 338(g) of the Code for SOFOM and shall not assign any rights or obligations under this Agreement in such a manner that could reasonably be expected to prevent such election from being valid, effective or timely. Any state or local Transfer Taxes that arise as a result of any election under Section 338(g) of the Code with respect to the Transactions contemplated hereunder shall be governed by Section 5.5 hereof.”

“In the event that the Seller Parties elect to fund or sell any Commercial Loan Backlog prior to an applicable Closing (each a “Backlog Asset”), the Purchaser Parties shall have the right, but not the obligation, to acquire such Backlog Asset in accordance with the terms of this Agreement.”

“Notwithstanding anything to the contrary contained herein, the sale, disposition or Transfer of the Property listed as “Artemis - Leipzig (LEP)” on Schedule 3 (the “Leipzig Property”) shall not prevent any right of Seller to exercise the Option in accordance with the terms of this Section 6.1 and the Option shall remain exercisable during the Option Period following the sale, disposition or other Transfer of any of the Leipzig Property.”

“In the event at any applicable Closing of a Purchased Interest with Underlying Properties located in the United States, a Purchased Entity owns an Excluded Asset and one or more other Underlying Properties, then, in such case, the applicable Purchased Interest shall be deemed a Deferred Asset until the earlier of (1) such time as the Purchased Entity no longer owns the Excluded Asset, or (2) the Seller Parties and the Purchaser Parties have agreed to an alternative manner of Transferring the Purchased Interests or Underlying Properties that are not Excluded Assets to the applicable Purchaser Parties (subject to any required consent of the Operating Partner) (the “Alternative Purchased Interest Structure”).”

“With respect to any Purchased Entity that owns Underlying Property located in the United States, in the event an Alternative Purchased Interest Structure is agreed to prior to the Closing Notice Date or the Seller Parties have notified the Purchaser Parties in writing on the Closing Notice Date that a Purchased Interest in a Purchased Entity can be Transferred and such Purchased Entity does not own any Excluded Assets, the applicable Deferral Condition shall be deemed satisfied. In the event the applicable Excluded Assets have not been Transferred from the applicable Purchased Entity on or prior to the Closing Notice Date or an Alternative Purchased Interest Structure has not been agreed to, but the applicable Excluded Assets have been transferred from the applicable Purchased Entity prior to the Closing Date to which the Closing Notice Date relates or an Alternative Purchased Interest Structure has been agreed to, the Purchaser Parties shall have the option to, but will not be required to, close the Transfer of the applicable Purchased Interest on such Closing Date. If the Purchaser Parties do not elect to close the Transfer on such Closing Date, subject to the terms and conditions of this Agreement, the Closing with respect to such Purchased Interest shall be deferred until the next occurring Deferred Closing Date. With respect to any such deferred Purchased Interest with respect to which an Operating Partner has executed a consent, the Buy-Sell Discussion Period shall be delayed and in the event a Closing with respect to such

Purchased Interest has not occurred or an Alternative Purchased Interest Structure is not agreed to on or before October 31, 2015 (except to the extent that the applicable Operating Partner is in breach or default of its obligations under the applicable consent related to the Transactions, in which case, the applicable date shall be the date of such breach or default), the Buy-Sell Discussion Period shall begin on October 31, 2015 and the provisions of Section 7.1(c) shall be applicable (except to the extent that the applicable Operating Partner is in breach or default of its obligations under the applicable consent related to the Transactions, in which case, the applicable date shall be the date of such breach or default).”

“Upon receipt of the notice described in Section 2.3(c), the Seller Parties shall have the right, by the date that is ten (10) Business Days after receipt of notice of such Title Objection (or no later than five (5) Business Days prior to the applicable Closing Date, unless the applicable notice of such Title Objection is provided within five (5) Business Days of the applicable Closing Date) or such other date as expressly provided herein, by written notice to the Purchaser Parties with respect to each Property affected by any such Material Title Exceptions, to elect to cure such Material Title Exception in accordance with Section 2.3(h). If the Seller Parties (x) do not elect to cure any Material Title Exception, or (y) in the event the Seller Parties have elected to cure any Material Title Exception and fail to cure in accordance with Section 2.3(h) by the applicable Closing Date, the Purchaser Parties shall have the election to either (A) terminate this Agreement with respect to such Purchased Commercial Loan, Transferred Property, Purchased Entity (if such Purchased Entity owns Underlying Property located outside of the United States) or Underlying Property (if such Underlying Property is located in the United States), in which case such Purchased Commercial Loan, Transferred Property, Purchased Entity or Underlying Property shall be deemed an Excluded Asset, or (B) proceed to Closing with respect to the affected Transferred Property, Purchased Commercial Loan or Purchased Interest; provided, however, that, in the event that the Seller Parties have elected to cure any such Material Title Exception, then the Purchaser Parties shall not be entitled to terminate this Agreement with respect the applicable Purchased Commercial Loan, Transferred Property or Purchased Interests for so long as the Seller Parties shall be using their Commercially Reasonable Efforts to cure such Material Title Exception or any Debt Removal Exception.”

“7.4 Italian SGR. The Parties acknowledge and agree that (a) the Purchaser Parties intend, pursuant to Section 12.9 hereof, to designate as a Purchaser Party Designee of those certain Properties listed as Rome – via Veneziani A B C D and Medici – Milan – via Cardano on Schedule 2 (collectively, the “Italian SGR Assets”) a newly formed real estate fund (the “New Fund”) that will be created and managed by an Italian regulated asset management company (società di gestione del risparimio) (the “SGR”), approved and duly enrolled with the register kept by the Bank of Italy, and (b) the New Fund will not be established and be fully operational before the Initial Equity Closing Date. The Seller Parties and the Purchaser Parties hereby agree that (i) the Purchaser Parties hereby waive (x) all rights to designate the Italian SGR Assets as “Designated Equity Assets” under this Agreement, (y) other than with respect to any Material Title Exception caused by the Seller Parties or their Affiliates after July 14, 2015, all rights and remedies under Section 2.4 with respect to the Italian SGR Assets, and (z) all rights and remedies related to the termination of the Agreement with respect to the Italian SGR Assets under Section 2.3 as a result of any Material Title Exception; (ii) the Purchaser Parties hereby waive as of the Initial Equity Closing Date each of the conditions under Section 9.4(a) with respect to the Italian SGR Assets and in no event shall the Purchaser Parties be entitled to delay the Deferred Closing on the Italian SGR Assets

as a result of the failure of such condition to be satisfied; (iii) as of the Initial Equity Closing Date, the Italian SGR Assets shall constitute Deferred Assets for purposes of this Agreement; and (iv) as of each Deferred Closing Date occurring after the Initial Equity Closing Date, the Italian SGR Assets shall continue to constitute Deferred Assets unless the Purchaser Parties shall have previously provided notice to the Seller Parties that the New Fund has been established and is fully operational, provided, however, that, notwithstanding anything to the contrary in this Agreement, the Deferred Closing with respect to the Italian SGR Assets shall occur no later than September 30, 2015 (regardless of whether the New Fund and SGR have been established and has become fully operational and regardless of whether a Deferred Closing is otherwise scheduled for September 30, 2015), which date may be extended to October 31, 2015 in the Seller Parties’ sole discretion.”

“7.5 Italian Retail. The Seller Parties have requested that, in lieu of the Purchaser Parties purchasing the Purchased Interests described as Gran Commercio Srl on Schedule 1 of the Purchase Agreement, the Purchaser Parties instead acquire the Interests in GE Real Estate Italia Retail S.r.l (“GE Italia” and the Interests therein, the “GE Italia Interests”) on August 5, 2015 (the “Italian Retail Closing Date”). The Seller Parties shall provide all Diligence Materials in respect of GE Italia as reasonably requested by the Purchaser Parties, and the Purchaser Parties shall perform due diligence on GE Italia. If such diligence is completed to the satisfaction of the Purchaser Parties (in their sole and absolute discretion) prior to the Italian Closing Date, then the Parties agree that the Purchaser Parties shall acquire the GE Italia Interests on the Italian Closing Date and the Parties shall enter into any agreements (including any side letters or amendments to the Purchase Agreement) required to memorialize such purchase. If such diligence is not complete to the satisfaction of the Purchaser Parties by the Italian Closing Date, then either (a) the Parties shall defer the Italian Closing Date to a date mutually agreed upon by the parties or (b) the Purchaser shall purchase the Purchased Interests described as Gran Commercio Srl, as originally contemplated in the Purchase Agreement, on the Italian Closing Date.

“(a) The Initial Debt Closing Date occurred on May 20, 2015.

(b) The Initial Equity Closing shall occur on July 15, 2015 (the “Initial Equity Closing Date”). For purposes of this Agreement the “Applicable Initial Closing Date” shall mean the Initial Equity Closing Date or the Initial Debt Closing Date as the context requires.”

“For the avoidance of doubt, it shall be a condition to each Party’s obligation to effect the Transaction in respect of the Property listed as Silver Forum; ul. Strzegomska 2-4, Wroclaw, Poland on Schedule 2 (the “Polish Property”) that either (x) a tax ruling by the applicable Polish tax authorities shall have been issued to each of the Purchaser Parties and the Seller Parties (the “Polish Tax Rulings”), or (y) the applicable waiting period under the applicable Polish tax regulations (plus five (5) extra Business Days) shall have expired.”

“(x) with respect to any Purchased Commercial Loan, the applicable Deferred Closing shall not have occurred on or prior to the Outside Debt Date (or, in the case of any Purchased Commercial Loans in France, the date that is the later of (A) thirty (30) days following the conclusion of the consultations with the Works Councils or Employee Representative Bodies in France, and (B) thirty (30) days following the receipt of all applicable approvals under Antitrust Laws (but, in no event, later than March 31, 2016));”

“(y) with respect to any Equity Asset, the applicable Deferred Closing shall not have occurred on or prior to the Outside Equity Date (or (1) in the case of Equity Assets in France, the date that is the later of (A) thirty (30) days following the conclusion of the consultations with the Works Councils or Employee Representative Bodies in France, (B) thirty (30) days following the receipt of all applicable approvals under Antitrust Laws, and (C) thirty (30) days following the receipt or waiver of any applicable Pre-Emptive Rights with respect to the applicable Equity Assets (but, in no event, later than March 31, 2016), or (2) in the case of any Equity Assets that are Purchased Interests with respect to which the Buy-Sell Discussion Period commences on or after July 16, 2015, the later of (i) February 15, 2016, and (ii) the earlier of (a) the date on which the applicable Purchased Interest is transferred to the Operating Partner, or (b) if a Seller Party takes ownership of the applicable Underlying Properties and such Underlying Properties become Transferred Properties, the date on which all consents have been received for the Seller Parties to Transfer such Properties to the Purchaser Parties).”

“(g) Post-Closing Taxes.”

“The Parties agree that any indemnification payments made with respect to this Agreement shall be treated for all Tax purposes as an adjustment to the Unadjusted Purchase Price, unless otherwise required by Laws (including by a determination of a Tax Authority that, under applicable Laws, is not subject to further review or appeal). The Parties agree to use their respective Commercially Reasonable Efforts to ensure that any such payments are made between the Seller Party actually selling the relevant Purchased Interest, Transferred Property or Purchased Commercial Loan and the Purchaser Party actually purchasing such relevant Purchased Interest, Transferred Property or Purchased Commercial Loan.”

“This Agreement will be binding upon, inure to the benefit of, and be enforceable by, the Parties and their respective permitted successors and permitted assigns. Neither this Agreement, nor any of the rights, interests or obligations under this Agreement, may be assigned or delegated, in whole or in part, by operation of law or otherwise by any of the Parties without the prior written consent of the other Parties. Any attempted or purported assignment in violation of this Section 12.9 shall be null and void and of no force or effect. Notwithstanding the foregoing, (a) the Seller Parties shall have the right to assign or delegate, in whole or in part, by operation of law or otherwise, any of its rights, interests or obligations under this Agreement to any Affiliate of the Seller Parties, provided that no such assignment or delegation shall release any Seller Party from its obligations hereunder; (b) the Purchaser Parties shall have the right to designate one or more Purchaser Party Designees as an assignee or delegatee of any of its rights, interests or obligations under this Agreement on or at any time following the date hereof, and such Purchaser Party Designees shall purchase, acquire

and take title to any or all of the Purchased Interests, Transferred Properties or Purchased Commercial Loans by notice to the Seller Parties given at least ten (10) Business Days prior to the Closing, provided that there is no increase in the costs borne by the Seller Parties under Section 12.13 (unless paid by the Purchaser Parties); and provided further that no such assignment or delegation shall release any Purchaser Party from its obligations hereunder; and (c) the Purchaser Parties shall have the right to collaterally assign their rights in this Agreement to any lender.”

““Post-Closing Taxes” means any and all liability for income Taxes (including, for the avoidance of doubt, penalties and interest imposed in connection with such Taxes) of Soldeva Grupo DE Inversiones 2006 SL (including secondary liability for such Taxes imposed on GE Real Estate Iberia S.A.) for any period beginning after the applicable Closing Date and the portion of any Straddle Tax Period beginning on the Closing Date (except to the extent such Taxes are accounted or adjusted for in a proration, calculation or other adjustment under Section 1.4) to the extent such liability for such Taxes relates to or arises as a result of the denial by applicable Tax Authorities of Tax deductions for interest expenses incurred in connection with the Revolving Credit Agreement dated July 13, 2015 by and between SOLDEVA GRUPO DE INVERSIONES 2006, S.L., as borrower, and GE REAL ESTATE IBERIA, S.A., as lender, or in connection with any future loan or credit agreement to be granted to SOLDEVA GRUPO DE INVERSIONES 2006, S.L. that refinances such Revolving Credit Agreement.”

“(f) relating to any Action alleging that any necessary corporate approvals required to Transfer certain Properties directly or indirectly owned by General Electric Real Estate Iberia, S.A. to the applicable Purchaser Parties were not properly obtained.

(g) relating to the Soldeva Proceeding.”

“Notwithstanding the foregoing or anything to the contrary contained in this Agreement, in no event shall any Seller Party be required to provide to the Title Company or any Purchaser Party any title affidavit, certification or indemnity in connection with any “non-imputation” endorsement or otherwise with respect to any Property that is Transferred to any of the Purchaser Parties or any Affiliates thereof by any Joint Venture or any Subsidiary thereof and for which a consent was executed by the applicable JV partner.”

“if to the Purchaser Parties to:

c/o The Blackstone Group

345 Park Avenue, 42nd Floor

New York, New York 10154

Attention: William Stein and Judy Turchin

Facsimile: 212-583-5202

with a copy (which shall not constitute notice) to:

Simpson Thacher & Bartlett LLP

425 Lexington Avenue

New York, New York 10154

Attention: Krista Miniutti

Facsimile: 212-455-2502”

“9. The Parties agree and acknowledge that the Equity Entity (and the other entities, in the event that they become Equity Entities as the result of an Alternative Transaction in

accordance with Section 1.5 of the Agreement) listed in paragraph 12 below shall notify the Initial Equity Closing Date as its accounting reference date and thus bring to an end the period of account for UK corporation tax purposes then current as at such date; such periods of account shall accordingly be Pre-Closing Tax Periods for the purposes of Section 5.6(c) of the Agreement and there shall be no Straddle Tax Periods for such Equity Entity (or other entities, if applicable). The Seller Parties shall within 60 days of the Closing Date prepare the accounts of such Equity Entity (and other entities, if applicable) for the period ending on that date and the Purchaser Parties shall procure that the relevant Equity Entity shall instruct KPMG LLP of 15 Canada Square, London (the “Auditors”) to undertake an audit in respect of such accounts. The Parties shall liaise with the Auditors with the intention that the said accounts be signed by the Auditors and on behalf of the relevant Equity Entity (and other entities, if applicable) within 90 days of the Closing Date.”

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Please confirm your agreement and consent with the foregoing by signing and returning one copy of this Letter Agreement to the undersigned, whereupon this Letter Agreement shall become a binding agreement among the Parties.