<SEC-DOCUMENT>0001213900-25-095611.txt : 20251002
<SEC-HEADER>0001213900-25-095611.hdr.sgml : 20251002
<ACCEPTANCE-DATETIME>20251002183917
ACCESSION NUMBER:		0001213900-25-095611
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250929
FILED AS OF DATE:		20251002
DATE AS OF CHANGE:		20251002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cialone Anthony M.
		CENTRAL INDEX KEY:			0002075782
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41581
		FILM NUMBER:		251371413

	MAIL ADDRESS:	
		STREET 1:		100 BISCAYNE BLVD.
		STREET 2:		SUITE 1201
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33132

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Safe & Green Development Corp
		CENTRAL INDEX KEY:			0001959023
		STANDARD INDUSTRIAL CLASSIFICATION:	REFUSE SYSTEMS [4953]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				871375590
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5011 GATE PARKWAY
		STREET 2:		BUILDING 100
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32256
		BUSINESS PHONE:		(646) 240-4235

	MAIL ADDRESS:	
		STREET 1:		5011 GATE PARKWAY
		STREET 2:		BUILDING 100
		CITY:			JACKSONVILLE
		STATE:			FL
		ZIP:			32256
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-09-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001959023</issuerCik>
        <issuerName>Safe &amp; Green Development Corp</issuerName>
        <issuerTradingSymbol>SGD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002075782</rptOwnerCik>
            <rptOwnerName>Cialone Anthony M.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SAFE AND GREEN DEVELOPMENT, CORP.,</rptOwnerStreet1>
            <rptOwnerStreet2>100 BISCAYNE BLVD., SUITE 1201</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33132</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series A Convertible Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-09-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>422835</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series A Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-09-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>422835</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2025-09-29</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1080248</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>422835</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">At the Issuer's Annual Meeting of Stockholders held on September 29, 2025, the Issuer's stockholders approved the issuance of the Issuer's common stock, par value $0.001 per share (the &quot;Common Stock&quot;), upon the conversion of the Issuer's Series A Convertible Preferred Stock pursuant to the terms set forth in the Certificate of Designation of the Preferences, Rights and Limitations of Series A Convertible Preferred Stock (&quot;Series A Preferred&quot;). Stockholder approval of the conversion feature of the shares of Series A Preferred held by the Reporting Person is being reported herein as a disposition of a non-derivative security to the Issuer and an acquisition of a derivative security from the Issuer. There is no expiration date related to the conversion of the shares of Series A Preferred into shares of Common Stock.</footnote>
        <footnote id="F2">Each share of Series A Preferred is convertible into six shares of the Issuer's Common Stock, subject to compliance with Nasdaq rules.</footnote>
        <footnote id="F3">To maintain the Reporting Person's interest below 19.99% in accordance with Nasdaq rules, as of the date hereof, the shares of Series A Preferred held by the Reporting Person are convertible into 1,080,248 shares of the Issuer's Common Stock (notwithstanding that 422,835 shares of Series A Preferred would otherwise be convertible, at a conversion ratio of six shares of the Issuer's Common Stock for each share of Series A Preferred, into 2,537,010 shares of the Issuer's common stock).</footnote>
        <footnote id="F4">The Reporting Person received the shares of Series A Preferred from the Issuer as partial consideration for the Reporting Person's membership interest in Resource Group US Holdings LLC (&quot;Resource Group&quot;) in connection with the Issuer's acquisition of Resource Group pursuant to the Membership Interests Purchase Agreement, dated as of February 25, 2025, as amended June 2, 2025.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Nicolai Brune, Attorney-in-Fact</signatureName>
        <signatureDate>2025-10-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
