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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 Sq21e2DiXZ7Iys7cYSiSkH3VhSQeopHauzRLqzuY6fYE5hy591N/nmpQhZpx6SRf
 IhhcQqgzKnuNJtyEN8SuGA==

<SEC-DOCUMENT>0001104659-05-046872.txt : 20051003
<SEC-HEADER>0001104659-05-046872.hdr.sgml : 20051003
<ACCEPTANCE-DATETIME>20051003164117
ACCESSION NUMBER:		0001104659-05-046872
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050930
FILED AS OF DATE:		20051003
DATE AS OF CHANGE:		20051003

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERIVEST PROPERTIES INC
		CENTRAL INDEX KEY:			0000927102
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				841240264
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1780 S BELLAIRE ST
		STREET 2:		SUITE 515
		CITY:			DENVER
		STATE:			CO
		ZIP:			80222
		BUSINESS PHONE:		3032971800

	MAIL ADDRESS:	
		STREET 1:		1780 S. BELLAIRE ST.
		STREET 2:		SUITE 515
		CITY:			DENVER
		STATE:			CO
		ZIP:			80222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TEPPER JERRY J
		CENTRAL INDEX KEY:			0001129613

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14462
		FILM NUMBER:		051118122

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		303-297-1800

	MAIL ADDRESS:	
		STREET 1:		1780 SOUTH BELLAIRE STREET
		STREET 2:		SUITE 100
		CITY:			DENVER
		STATE:			CO
		ZIP:			80222
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000927102</issuerCik>
        <issuerName>AMERIVEST PROPERTIES INC</issuerName>
        <issuerTradingSymbol>AMV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001129613</rptOwnerCik>
            <rptOwnerName>TEPPER JERRY J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7255 NORTH SHERIDAN STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ARVADA</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80003</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1050</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.09</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>502100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">420,000 shares held by corporation in which the reporting person has an indirect pecuniary interest, and 24,500 shares held by the reporting person's spouse in which the reporting person has an indirect pecuniary interest.  The reporting person disclaims beneficial ownership over the portion of the interest not attributable to the reporting person.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kim Boswood as attorney-in-fact</signatureName>
        <signatureDate>2005-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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