| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated February 2013 | |
| England | Hertfordshire | Large | Terminated February 2009 | |
| England | Hertfordshire | Small | Terminated February 2003 | |
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated January 2016 | |
| England | Hertfordshire | Large | Terminated July 2007 | |
| England | Hertfordshire | Large | Terminated June 2016 | |
| England | Hertfordshire | Large | Terminated January 2015 | |
| England | Hertfordshire | Large | Terminated January 2017 | |
| England | Hertfordshire | Large | Terminated October 2001 | |
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated May 2016 | |
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated May 2005 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated May 2001 | |
| England | Hertfordshire | Large | Terminated March 2002 | |
| England | Hertfordshire | Large | Terminated May 2015 | |
| England | Hertfordshire | Large | Terminated November 2013 | |
| England | Hertfordshire | Large | Terminated February 2006 |