-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WKZNu72USIKzceY8RGqKxElu9gPPLshI/hXJhpu5T7z4//finObZyRAzetIhJn9j
 xUsOeZ4SiTKN+q9Frbs62A==

<SEC-DOCUMENT>0000914190-07-000475.txt : 20070823
<SEC-HEADER>0000914190-07-000475.hdr.sgml : 20070823
<ACCEPTANCE-DATETIME>20070823182602
ACCESSION NUMBER:		0000914190-07-000475
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070820
FILED AS OF DATE:		20070823
DATE AS OF CHANGE:		20070823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUNTINGTON STEVEN A
		CENTRAL INDEX KEY:			0001397901

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31313
		FILM NUMBER:		071076550

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(920) 684-5531

	MAIL ADDRESS:	
		STREET 1:		101 SOUTH 16TH STREET
		CITY:			MANITOWOC
		STATE:			WI
		ZIP:			54221

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TOWER TECH HOLDINGS INC.
		CENTRAL INDEX KEY:			0001120370
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				880409160
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		980 MARITIME DRIVE
		STREET 2:		SUITE 6
		CITY:			MANITOWOC
		STATE:			WI
		ZIP:			54220
		BUSINESS PHONE:		(920) 684-5531

	MAIL ADDRESS:	
		STREET 1:		980 MARITIME DRIVE
		STREET 2:		SUITE 6
		CITY:			MANITOWOC
		STATE:			WI
		ZIP:			54220

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACKFOOT ENTERPRISES INC
		DATE OF NAME CHANGE:	20000726
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-08-20</periodOfReport>

    <issuer>
        <issuerCik>0001120370</issuerCik>
        <issuerName>TOWER TECH HOLDINGS INC.</issuerName>
        <issuerTradingSymbol>TWRT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001397901</rptOwnerCik>
            <rptOwnerName>HUNTINGTON STEVEN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>101 SOUTH 16TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 1957</rptOwnerStreet2>
            <rptOwnerCity>MANITOWOC</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode>54221</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.60</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-08-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-08-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">10,000 shares shall vest on each of 8/20/08, 8/20/09, 8/20/10, 8/20/11 and 8/20/12.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven A. Huntington</signatureName>
        <signatureDate>2007-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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