Updated survey

The survey allegedly requested by the ROS concluded that the area of ground depicted on the OS extract was over a metre short of what was actually on the ground. I am assuming as you guarantee an accuracy of plus or minus 0.4 metres on the 1/1250 drawing that the surveyor would have to amend the current plan within a reasonable period of time.

I am also assuming, especially as this area was surrounded by other developments, that any changes to the master would be recorded for audit purposes or indeed future challenges relating to land conveyed prior to these changes.

Can you advise if the plan in question was updated following this alleged survey, and if so can you supply me details under the FOIA.

Thank you for your e-mail dated 25th August 2011. I regret to inform you that Ordnance Survey is unable to help you with your enquiry as we do not hold this information. We have checked our records and confirm we do not hold any information relating to the date of change of Topographical data during 1989 - in the area your request refers.

Please note that your enquiry has been processed according to the Freedom of Information Act (FOIA) 2000. If you are unhappy with our response, you may raise an appeal to our Appeals Officer at:

FOI Appeals Officer
Customer Service Centre
Ordnance Survey 
Adanac Drive
SOUTHAMPTON
SO16 0AS

Please include the reference number below. The Appeals Officer will ensure that the process has been followed correctly, questioning any decisions taken regarding the original response and recommending disclosure of additional information if appropriate.

Thank you for your enquiry.

Reference number: FOI11214/August 2011