-----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,
 Kw8fqMnS9xAQ0yyrEc2lp7u6iyEunYxc5ZcCObyHo5Y5HA6FM8OohFhWEJi3jeEb
 VTpVQvX9a8ANY5CUGXOvMg==

<SEC-DOCUMENT>0001005477-03-000933.txt : 20030513
<SEC-HEADER>0001005477-03-000933.hdr.sgml : 20030513
<ACCEPTANCE-DATETIME>20030513153823
ACCESSION NUMBER:		0001005477-03-000933
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030509
FILED AS OF DATE:		20030513

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UIL HOLDINGS CORP
		CENTRAL INDEX KEY:			0001082510
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				061541045
		STATE OF INCORPORATION:			CT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		157 CHURCH ST
		CITY:			NEW HAVEN
		STATE:			CT
		ZIP:			06510
		BUSINESS PHONE:		2034992000

	MAIL ADDRESS:	
		STREET 1:		157 CHURCH ST
		CITY:			NEW HAVEN
		STATE:			CT
		ZIP:			06510

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CHASE ARNOLD L
		CENTRAL INDEX KEY:			0001024134

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15052
		FILM NUMBER:		03695496

	BUSINESS ADDRESS:	
		STREET 1:		C/O CHASE ENTERPRISES
		STREET 2:		ONE COMMERCIAL PLAZA
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06103-3599
		BUSINESS PHONE:		8605491674

	MAIL ADDRESS:	
		STREET 1:		C/O CHASE ENTERPRISES
		STREET 2:		ONE COMMERCIAL PLAZA
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06103-3599
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0101</schemaVersion>

<documentType>4</documentType>
    <periodOfReport>2003-05-09</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
<issuer>        <issuerCik>0001082510</issuerCik>
        <issuerName>UIL HOLDINGS CORP</issuerName>
<issuerTradingSymbol>UIL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
    <reportingOwnerId>
        <rptOwnerCik>0001024134</rptOwnerCik>
            <rptOwnerName>CHASE ARNOLD L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
<reportingOwnerRelationship>
        <isDirector>1</isDirector>
        <isOfficer>0</isOfficer>
        <isTenPercentOwner>0</isTenPercentOwner>
        <isOther>0</isOther>
    </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeSecurity>
        <securityTitle>
            <value>Phantom Stock Units</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>0</value>
            <footnoteId id="F3"/>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-05-09</value>
            <footnoteId id="F1"/>
        </transactionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>A</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>
            <transactionShares>
                <value>27.13</value>
            </transactionShares>
            <transactionValue>
                <value>36.87</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>1993-08-08</value>
            <footnoteId id="F2"/>
            <footnoteId id="F4"/>
        </exerciseDate>
        <expirationDate>
            <value>1993-08-08</value>
            <footnoteId id="F2"/>
            <footnoteId id="F4"/>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
                <footnoteId id="F2"/>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>27.13</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>4511.08</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">The phantom stock units were accrued under the UIL Holdings Corp. Non-Employee Directors Common Stock and Deferred Compensation Plan (the "Plan").</footnote>
        <footnote id="F2">The units are to be settled in UIL Holdings Corp. Common Stock upon termination of the Reporting Person's servie (other than by death) or termination of the Plan.</footnote>
        <footnote id="F3">1-for-1</footnote>
        <footnote id="F4">The staff has designated 08/08/1993 as a "dummy date" for this specific purpose.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Arnold L. Chase</signatureName>
        <signatureDate>2003-05-09</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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