**Exhibit32.1**

**Certification of CEO and CFOPursuant to**

**18 U.S.C. Section 1350,**

**as Adopted Pursuant to**

**Section906 of the Sarbanes-Oxley Act of 2002**

In connection with the Annual Report on Form 10-K ofSouth Hertfordshire United Kingdom Fund, Ltd. (the “Partnership”) for the yearended December 31, 2006 as filed with the Securities and Exchange Commission onthe date hereof (the “Report”), Robert Mackenzie, as a director for VirginMedia Directors Limited, the Corporate Director of NTL Fawnspring Limited, the GeneralPartner of the Partnership, and Robert Gale, as a director for Virgin Media DirectorsLimited, the Corporate Director of NTL Fawnspring Limited, the General Partnerof the Partnership, each hereby certifies, pursuant to 18 U.S.C. Section 1350,as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to thebest of his knowledge, that:

(1)      TheReport fully complies with the requirements of Section 13(a) or 15(d) of theSecurities Exchange Act of 1934; and

(2)      Theinformation contained in the Report fairly presents, in all material respects,the financial condition and results of operations of the Partnership.
| /s/ ROBERT MACKENZIE |                                                                   |
|----------------------|------------------------------------------------------------------------|
| Name:                | Robert Mackenzie                                                       |
| Title:               | Director of Virgin Media Directors Limited                             |
|                 | Corporate Director of NTL Fawnspring Limited,                          |
|                 | the General Partner of South Hertfordshire United  Kingdom Fund, Ltd.* |
| Date:                | March 29, 2007                                                         |
|                 |                                                                   |
| /s/ ROBERT GALE      |                                                                   |
| Name:                | Robert Gale                                                            |
| Title:               | Director of Virgin Media Directors limited                             |
|                 | Corporate Director of NTL Fawnspring Limited,                          |
|                 | the General Partner of South Hertfordshire United  Kingdom Fund, Ltd.* |
| Date:                | March 29, 2007                                                         |
|                      |                                                                        |  |

 

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

This certification accompanies the Report pursuant toSection 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to theextent required by the Sarbanes-Oxley Act of 2002, be deemed filed by thePartnership for purposes of Section 18 of the Securities Exchange Act of 1934.

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*            ThePartnership has no Chief Executive Officer or Chief Financial Officer. RobertMackenzie and Robert Gale are directors of Virgin Media Directors Limited,which is a Corporate Director of NTL Fawnspring Limited, the General Partner ofthe Partnership.

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