<SEC-DOCUMENT>0001213900-21-023976-index.html : 20210430
<SEC-HEADER>0001213900-21-023976.hdr.sgml : 20210430
<ACCEPTANCE-DATETIME>20210430172255
ACCESSION NUMBER:		0001213900-21-023976
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210430
DATE AS OF CHANGE:		20210430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SG BLOCKS, INC.
		CENTRAL INDEX KEY:			0001023994
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030]
		IRS NUMBER:				954463937
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38037
		FILM NUMBER:		21879951

	BUSINESS ADDRESS:	
		STREET 1:		195 MONTAGUE STREET, 14TH FLOOR
		CITY:			BROOKLYN
		STATE:			NY
		ZIP:			11201
		BUSINESS PHONE:		(646) 240-4235

	MAIL ADDRESS:	
		STREET 1:		195 MONTAGUE STREET, 14TH FLOOR
		CITY:			BROOKLYN
		STATE:			NY
		ZIP:			11201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDSI HOLDINGS INC
		DATE OF NAME CHANGE:	19990114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PC411 INC
		DATE OF NAME CHANGE:	19961001
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>f10k2020a1_sgblocksinc.htm
<DESCRIPTION>AMENDMENT NO. 1 TO FORM 10-K
<TEXT>
Document 1 - file: f10k2020a1_sgblocksinc.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>f10k2020a1ex10-1_sgblocks.htm
<DESCRIPTION>AMENDMENT TO EXECUTIVE EMPLOYMENT AGREEMENT BETWEEN THE COMPANY AND PAUL GALVIN
<TEXT>
Document 2 - file: f10k2020a1ex10-1_sgblocks.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.3
<SEQUENCE>3
<FILENAME>f10k2020a1ex31-3_sgblocks.htm
<DESCRIPTION>CERTIFICATION
<TEXT>
Document 3 - file: f10k2020a1ex31-3_sgblocks.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.4
<SEQUENCE>4
<FILENAME>f10k2020a1ex31-4_sgblocks.htm
<DESCRIPTION>CERTIFICATION
<TEXT>
Document 4 - file: f10k2020a1ex31-4_sgblocks.htm

</DOCUMENT>
</SEC-DOCUMENT>