| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated March 2019 | |
| England | Hertfordshire | Large | Terminated August 2005 | |
| England | Hertfordshire | Large | Terminated March 2006 | |
| England | Hertfordshire | Large | Terminated May 2006 | |
| England | Hertfordshire | Large | Terminated June 2008 | |
| England | Hertfordshire | Large | Terminated September 2007 | |
| England | Hertfordshire | Large | Terminated July 2006 | |
| England | Hertfordshire | Large | Terminated September 2007 | |
| England | Hertfordshire | Large | Terminated September 2007 | |
| England | Hertfordshire | Large | Terminated November 2018 | |
| England | Hertfordshire | Large | Terminated January 2008 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated May 2008 | |
| England | Hertfordshire | Large | Terminated February 2009 | |
| England | Hertfordshire | Large | Terminated March 2013 | |
| England | Hertfordshire | Large | Terminated March 2009 | |
| England | Hertfordshire | Large | Terminated June 2016 | |
| England | Hertfordshire | Large | Terminated April 2008 | |
| England | Hertfordshire | Large | Terminated April 2012 |