## **Exhibit 31.1**

##  

**CERTIFICATIONS**

** **

I, Robert Mackenzie, director of Virgin MediaDirectors Limited, certify that:

 

1.             Ihave reviewed this annual report on Form 10-K of South HertfordshireUnited Kingdom Fund, Ltd.

 

2.      Based on my knowledge, this report does not containany untrue statement of a material fact or omit to state a material factnecessary to make the statements made, in light of the circumstances underwhich such statements were made, not misleading with respect to the periodcovered by this report.

 

3.      Based on my knowledge, the financial statements, andother financial information included in this report, fairly present in allmaterial respects the financial condition, results of operations and cash flowsof the registrant as of, and for, the periods presented in this report.

 

4.      The registrant’s other certifying officer and I areresponsible for establishing and maintaining disclosure controls and procedures(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) andinternal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the registrant and have:

 

a)              Designed such disclosure controls andprocedures, or caused such disclosure controls and procedures to be designedunder our supervision, to ensure that material information relating to theregistrant, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which thisreport is being prepared;

 

b)               Designed such internal control over financialreporting, or caused such internal control over financial reporting to bedesigned under our supervision, to provide reasonable assurance regarding thereliability of financial reporting and the preparation of financial statementsfor external purposes in accordance with generally accepted accountingprinciples;

 

c)              Evaluated the effectiveness of theregistrant’s disclosure controls and procedures and presented in this reportour conclusions about the effectiveness of the disclosure controls and procedures,as of the end of the period covered by this report based on such evaluation;and

 

d)             Disclosed in this report any change inthe registrant’s internal control over financial reporting that occurred duringthe registrant’s fourth fiscal quarter that has materially affected, or isreasonably likely to materially affect, the registrant’s internal control overfinancial reporting.

 

5.      The registrant’s other certifying officer and I havedisclosed, based on our most recent evaluation of internal control overfinancial reporting, to the registrant’s auditors and the audit committee ofthe registrant’s board of directors (or persons performing the equivalentfunctions):

 

a)              All significant deficiencies and materialweaknesses in the design or operation of internal control over financialreporting which are reasonably likely to adversely affect the registrant’sability to record, process, summarize and report financial information; and

 

b)             Any fraud, whether or not material, thatinvolves management or other employees who have a significant role in theregistrant’s internal control over financial reporting.

 
| Date: March 27, 2008 | /s/ ROBERT MACKENZIE                                                   |   |   |
|---------------------------|------------------------------------------------------------------------|--------|--------|
|                      | Robert Mackenzie                                                       |   |
|                      | Director of Virgin Media Directors Limited,                            |   |
|                      | Corporate Director of NTL Fawnspring Limited,                          |   |
|                      | the General Partner of South Hertfordshire United  Kingdom Fund, Ltd.* |   |
|                      |                                                                   |   |

----

*                 The Partnership has no Chief Executive Officeror Chief Financial Officer. Robert Mackenzie and Robert Gale are directors ofVirgin Media Directors Limited, which is a Corporate Director of FawnspringLimited, the General Partner of the Partnership.

 

----

##  

##