UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
           Pursuant to Section 13 OR 15(d) of The Securities Exchange
                                   Act of 1934

Date of Report (Date of earliest event reported) April 29, 2003
                                                 --------------

                                    SJW Corp.
--------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

        California                   1-8966               77-0066628
--------------------------------------------------------------------------------
(State or other jurisdiction      (Commission           (IRS Employer
      of incorporation)           File Number)        Identification No.)

374 W. Santa Clara Street, San Jose, California             95196
--------------------------------------------------------------------------------
    (Address of principal executive offices)             (Zip Code)

Registrant's telephone number, including area code      (408) 279-7800
                                                        --------------

                                 Not Applicable
--------------------------------------------------------------------------------
          (Former name or former address, if changed since last report)



Item 7. Financial Statements and Exhibits.

     c) Exhibits. The following document is filed as an exhibit to this report:

     99.1  Press Release issued by SJW Corp. dated April 29, 2003.

Item 9.  Regulation FD Disclosure.

     The  information  contained in this Item 9 of this Current  Report is being
furnished  pursuant to "Item 12. Results of Operations and Financial  Condition"
of Form 8-K in  accordance  with SEC  Release  Nos.  33-8216 and  34-47583.  The
information  contained  in this Current  Report shall not be deemed  "filed" for
purposes of Section 18 of the  Securities  Exchange Act of 1934, as amended (the
"Exchange Act"), or incorporated by reference in any filing under the Securities
Act of 1933, as amended (the  "Securities  Act"), or the Exchange Act, except as
shall be expressly set forth by specific reference in such a filing.

     On April 29, 2003, SJW Corp.  announced its financial results for the first
quarter  ended March 31,  2003.  A copy of the press  release  announcing  these
financial  results is attached as Exhibit 99.1 hereto and incorporated into this
Form 8-K by reference.



                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                  SJW Corp.
                                  -----------------------------


May 5, 2003                       /s/ Angela Yip
---------------------             -----------------------------
                                  Angela Yip,
                                  Chief Financial Officer
                                  and Treasurer

                                  EXHIBIT INDEX

Exhibit
Number                        Description of Document
--------                      ------------------------

99.1   Press Release issued by SJW Corp., dated April 29, 2003.