Exhibit 10.1

SECURITIES PURCHASE AGREEMENT

THIS SECURITIES PURCHASE AGREEMENT, dated as of the date of acceptance set forth below, is entered into by and between SG BLOCKS, INC., a Delaware corporation, with headquarters located at 195 Montague Street, 14th Floor, Brooklyn, New York 11201 (the “Company”), and the undersigned (the “Buyer”).

W I T N E S S E T H:

WHEREAS, the Company and the Buyer are executing and delivering this Agreement in accordance with and in reliance upon the exemption from securities registration afforded, inter alia, by Regulation 506 under Regulation D (“Regulation D”) as promulgated by the United States Securities and Exchange Commission (the “SEC”) under the Securities Act of 1933, as amended (the “1933 Act”), and/or Section 4(a)(2) of the 1933 Act; and

WHEREAS, the Buyer wishes to purchase, upon the terms and subject to the conditions of this Agreement) the Company’s 9% secured promissory note due 2023 in the principal amount of $______.00, in the form attached as Exhibit A hereto (the “Note”);

NOW THEREFORE, in consideration of the premises and the mutual covenants contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1. AGREEMENT TO PURCHASE; PURCHASE PRICE.

a. Purchase. The Buyer hereby agrees to purchase the Note from the Company. The purchase price for the Note shall be _________ Dollars ($_______) and shall be payable in United States Dollars.

b. Form of Payment; Escrow Arrangements. The Buyer shall pay the purchase price for the Note by wiring immediately available good funds in United States Dollars to the Company at {insert wire instructions}.

2. BUYER REPRESENTATIONS, WARRANTIES, ETC.; ACCESS TO INFORMATION; INDEPENDENT INVESTIGATION.

The Buyer represents and warrants to, and covenants and agrees with, the Company as follows:

a. The Buyer is purchasing the Note for its own account for investment only and not with a view towards the public sale or distribution thereof and not with a view to or for sale in connection with any distribution thereof;

b. The Buyer is (i) an “accredited investor” as that term is defined in Rule 501 of the General Rules and Regulations under the 1933 Act by reason of Rule 501(a)(3), and (ii) experienced in making investments of the kind described in this Agreement and the related documents, (iii) able, by reason of the business and financial experience of its officers (if an entity) and professional advisors (who are not affiliated with or compensated in any way by the Company or any of its affiliates or selling agents), to protect its own interests in connection with the transactions described in this Agreement, and the related documents, and (iv) able to afford the entire loss of its investment in the Note;

c. All subsequent offers and sales of the Note by the Buyer shall be made pursuant to registration under the 1933 Act or pursuant to an exemption from registration;

d. The Buyer understands that the Note is being offered and sold to it in reliance on specific exemptions from the registration requirements of United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and the Buyer’s compliance with, the representations, warranties, agreements, acknowledgements and understandings of the Buyer set forth herein in order to determine the availability of such exemptions and the eligibility of the Buyer to acquire the Note;

e. The Buyer and its advisors, if any, have been furnished with all materials relating to the business, finances and operations of the Company and materials relating to the offer and sale of the Note which have been requested by the Buyer. The Buyer and its advisors, if any, have been afforded the opportunity to ask questions of the Company and have received complete and satisfactory answers to any such inquiries. Without limiting the generality of the foregoing, the Buyer has also had the opportunity to obtain and to review the Company’s Current Reports on Form 8-K, Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31, 2019, June 30, 2019 and September 30, 2019 and Annual Report on Form 10-K for the fiscal year ended December 31, 2018 (the “SEC Documents”).

f. The Buyer understands that its investment in the Note involves a high degree of risk;

g. The Buyer understands that no United States federal or state agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Note;

h. This Agreement has been duly and validly authorized, executed and delivered on behalf of the Buyer and is a valid and binding agreement of the Buyer enforceable in accordance with its terms, subject as to enforceability to general principles of equity and to bankruptcy, insolvency, moratorium and other similar laws affecting the enforcement of creditors’ rights generally.

3. COMPANY REPRESENTATIONS, ETC.

The Company represents and warrants to the Buyer that:

a. Reporting Company Status. The Company is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware, and has the requisite corporate power to own its properties and to carry on its business as now being conducted. The Company is duly qualified as a foreign corporation to do business and is in good standing in each jurisdiction where the nature of the business conducted or property owned by it makes such qualification necessary other than those jurisdictions in which the failure to so qualify would not have a material and adverse effect on the business, operations, properties, prospects or condition (financial or otherwise) of the Company. The Company has registered its Common Stock pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

b. Authorization. This Agreement, the Pledge and Security Agreement executed by the Company in favor of Buyer of even date herewith (he “Pledge Agreement”) and the transactions contemplated hereby and thereby have been duly and validly authorized by the Company, this Agreement and the Pledge Agreement have been duly executed and delivered by the Company and this Agreement, the Note and the Pledge Agreement, when executed and delivered by the Company, will be, a valid and binding agreement of the Company enforceable in accordance with its terms, subject as to enforceability to general principles of equity and to bankruptcy, insolvency, moratorium, and other similar laws affecting the enforcement of creditors’ rights generally.

c. Non-contravention. The execution and delivery of this Agreement and the Pledge Agreement by the Company, the issuance of the Note, and the consummation by the Company of the other transactions contemplated by this Agreement do not and will not conflict with or result in a breach by the Company of any of the terms or provisions of, or constitute a default under (i) the articles of incorporation or by-laws of the Company, (ii) any indenture, mortgage, deed of trust, or other material agreement or instrument to which the Company is a party or by which it or any of its properties or assets are bound, (iii) to its knowledge, any existing applicable law, rule, or regulation or any applicable decree, judgment, or (iv) to its knowledge, order of any court, United States federal or state regulatory body, administrative agency, or other governmental body having jurisdiction over the Company or any of its properties or assets, except such conflict, breach or default which would not have a material adverse effect on the transactions contemplated herein. The Company is not in violation of any material laws, governmental orders, rules, regulations or ordinances to which its property, real, personal, mixed, tangible or intangible, or its businesses related to such properties, are subject.

d. Approvals. No authorization, approval or consent of any court, governmental body, regulatory agency, self-regulatory organization, or stock exchange or market is required to be obtained by the Company for the issuance and sale of the Note to the Buyer as contemplated by this Agreement or entry into the Pledge Agreement by the Company, except such authorizations, approvals and consents that have been obtained.

e. SEC Documents, Financial Statements. The Company has filed on a timely basis all reports, schedules, forms, statements and other documents required to be filed by it with the SEC pursuant to the reporting requirements of the Exchange Act, including material filed pursuant to Section 13(a) or 15(d). The Company has not provided to the Buyer any information which, according to applicable law, rule or regulation, should have been disclosed publicly by the Company but which has not been so disclosed, other than with respect to the transactions contemplated by this Agreement.

As of their respective dates, the SEC Documents complied in all material respects with the requirements of the Act or the Exchange Act as the case may be and the rules and regulations of the SEC promulgated thereunder and other federal, state and local laws, rules and regulations applicable to such SEC Documents, and none of the SEC Documents contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. The financial statements of the Company included in the SEC Documents comply as to form in all material respects with applicable accounting requirements and the published rules and regulations of the SEC or other applicable rules and regulations with respect thereto. Such financial statements have been prepared in accordance with generally accepted accounting principles applied on a consistent basis during the periods involved (except (i) as may be otherwise indicated in such financial statements or the notes thereto or (ii) in the case of unaudited interim statements, to the extent they may not include footnotes or may be condensed or summary statements) and fairly present in all material respects the financial position of the Company as of the dates thereof and the results of operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal year-end audit adjustments).

4. CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

a. Transfer Restrictions. The Buyer acknowledges that (1) the Note has not been registered under the provisions of the 1933 Act and may not be transferred unless (A) subsequently registered thereunder, as provided for herein, or (B) the Buyer shall have delivered to the Company an opinion of counsel, reasonably satisfactory in form, scope and substance to the Company, to the effect that the Note to be sold or transferred may be sold or transferred pursuant to an exemption from such registration.

b. Restrictive Legend. The Buyer acknowledges and agrees that the Note shall bear a restrictive legend in substantially the following form (and a stop-transfer order may be placed against transfer thereof):

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE SOLD OR OFFERED FOR SALE IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT OR AN OPINION OF COUNSEL OR OTHER EVIDENCE ACCEPTABLE TO THE CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

c. Filings. The Company undertakes and agrees to make all necessary filings in connection with the sale of the Note to the Buyer under any United States laws and regulations, or by any domestic securities exchange or trading market, and to provide a copy thereof to the Buyer promptly after such filing.

5. GOVERNING LAW: MISCELLANEOUS. This Agreement shall be governed by and interpreted in accordance with the laws of the State of Delaware. A facsimile transmission of this signed Agreement shall be legal and binding on all parties hereto. This Agreement may be signed in one or more counterparts, each of which shall be deemed an original. The headings of this Agreement are for convenience of reference and shall not form part of, or affect the interpretation of, this Agreement. If any provision of this Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the remainder of this Agreement or the validity or enforceability of this Agreement in any other jurisdiction. This Agreement may be amended only by an instrument in writing signed by the party to be charged with enforcement. This Agreement supersedes all prior agreements and understandings among the parties hereto with respect to the subject matter hereof.

6. NOTICES. Any notice required or permitted hereunder shall be given in writing (unless otherwise specified herein) and shall be deemed effectively given, (i) on the date delivered, (a) by personal delivery, or (b) if advance copy is given by fax, (ii) seven business days after deposit in the United States Postal Service by regular or certified mail, or (iii) three business days mailing by international express courier, with postage and fees prepaid, addressed to each of the other parties thereunto entitled at the following addresses, or at such other addresses as a party may designate by ten days advance written notice to each of the other parties hereto.

195 Montague Street, 14th Floor

Brooklyn, New York 11201

Facsimile: (646) 240-4235

with a copy to:

Gracin & Marlow, LLP

405 Lexington Avenue, 26^th Floor

New York, New York 10174

Attention: Hank Gracin, Esq.

Facsimile: (212) 208-4657

7. SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and permitted assigns.

IN WITNESS WHEREOF, this Agreement has been duly executed by the Buyer or one of its officers thereunto duly authorized as of the date set forth below.

This Agreement has been accepted as of the date set forth below.

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