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Exhibit 99.1

Certification of CEO and CFO Pursuant to
18 U.S.C. Section 1350,
as Adopted Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of South Hertfordshire
United Kingdom Fund, Ltd. (the Partnership) for the quarterly period ended
March 31, 2003 as filed with the Securities and Exchange Commission on the date
hereof (the Report), Barclay Knapp, as Director of Fawnspring Limited, the
general partner of the Partnership, and Scott E. Schubert, as Director of
Fawnspring Limited, the general partner of the Partnership, each hereby
certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the
Sarbanes-Oxley Act of 2002, to the best of his knowledge, that:



| | (1) |  | The Report fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934; and                                   
| | --- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (2) |  | The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations
of the Partnership.

|                  |  |                                                                                                       | 
|----------------- |  | ----------------------------------------------------------------------------------------------------- | 
|/s/ Barclay Knapp
|Name:             |  | Barclay Knapp                                                                                        
|Title:            |  | Director of Fawnspring Limited,
the General Partner of South Hertfordshire United Kingdom Fund, Ltd.*
|Date:             |  | May 15, 2003                                                                                         

|                      |  |                                                                                                       | 
|--------------------- |  | ----------------------------------------------------------------------------------------------------- | 
|/s/ Scott E. Schubert
|Name:                 |  | Scott E. Schubert                                                                                    
|Title:                |  | Director of Fawnspring Limited,
the General Partner of South Hertfordshire United Kingdom Fund, Ltd.*
|Date:                 |  | May 15, 2003                                                                                         

This certification accompanies the Report pursuant to § 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of §18
of the Securities Exchange Act of 1934, as amended.

A signed original of
this written statement required by Section 906 of the
Sarbanes-Oxley Act of 2002 has been provided to the Partnership and
will be retained by the Partnership and furnished to the Securities
and Exchange Commission or its staff upon request.





|* |  | The Partnership has no Chief Executive Officer or Chief Financial
Officer. Barclay Knapp and Scott E. Schubert are Directors of Fawnspring
Limited, the general partner of the Partnership, and are Chief Executive
Officer and Chief Financial Officer, respectively, of NTL Incorporated,
the indirect parent of Fawnspring Limited.
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