Quoted from the Heathrow mailing list, info is copyright of the source, who i will not name for security reasons.
At 0900 today, stands H05, H07, H30, H32, H34, H36 were all permanently withdrawn
and the whole H cul-de-sac closed to aircraft. H09 will remain open till 11th
November when that too will be shut, providing a new stand H01 is ready to
enter service. This will be aligned North-South, roughly where H36/38 used
to be. It will take up to A380 sized aircraft and temporarily can be split
H01L/01R for two smaller aircraft.
Two more large aircraft stands H05 and H09 will be opened at a later date,
parallel to H01 from east to west. There will also be two other stands
available, H03 and H07 which will be used for smaller aircraft when large
aircraft are not using H05 and H09. When this happens H09 can also be used
for a smaller aircraft, in the same way that J04 is used when small aircraft
are on J02 and J06. Hope this makes sense. All these stands are aligned
Now the big one!! All aircraft stands at Heathrow will be renumbered during
the night of 28/29th March 2003. By 0530 all stands will be numbered in the
range 101 - 703. The cul-de-sac letters will disappear. I hope Dean will
put a new map on his website, nearer the date, so that I don't have to try
to list all the changes!! The BAA/HAL has gone for the cheapest option,
obviously, so it is also the most complicated and has little pattern to it.