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Ownership of River Delph

This Freedom of Information request asks for details of ownership and control of the River Delph.

Request for information - Ref No: FOI221077


Thank you for your email of 27 April 2022, requesting information from Ordnance Survey in accordance with the Freedom of Information Act (FOIA) 2000, as set out in the extract below:

“under the freedom of information request act ,,,,,i would like to know please ,what parts of the river Delph in Cambridge do you own/control ? and which parts you do not own ,and are controlled by riparian owners ....

I would like a detailed map please , covering the FULL 13.6 miles of river ,,,,,,,,,,that is THE RIVER DELPH CAMBRIDGESHIRE,,, ,showing in detail and grid ref ,,river banks /river controlled by the EA,,,,,,and grid ref of banks/river controlled/owned by riparian owners .

so on the river delph ,,,,,,,details of what is yours ,what is not yours with grid ref please”

Our response

I confirm that Ordnance Survey does not hold the information you have requested.

However, under the duty to provide information and assistance in accordance with section 16 of FOIA, we can provide the following information which may assist you in this matter.

We are unable to provide you with a detailed map of the river Delph showing ownership as Ordnance Survey maps do not depict ownership. Our remit is to survey and map physical features on the ground at the time of survey, we do not hold records of ownership of land/physical features.

Ownership of land is dealt with by HM Land Registry. You may wish to contact HM Land Registry and possibly the Environment Agency who may be able to assist you further. The links below provide contact information:

Contact HM Land Registry - GOV.UK (

Environment Agency - GOV.UK (

If you require an Ordnance Survey map, which will only show the topographical features of the river Delph, our Explorer sheets 228 and 225 will provide the best coverage. The link below is to our official map shop: 

Official shop to buy Ordnance Survey Maps & Outdoor Gear

Internal review

Your enquiry has been processed according to the Freedom of Information Act (FOIA) 2000. If you are unhappy with our response, you may request an internal review with our Internal Review Officer by contacting them, within two months of receipt of our final response to your Freedom of Information (FOI) request, as follows:

Internal Review Officer
Customer Service Centre
Ordnance Survey
Adanac Drive
SO16 0AS

Contact us via our FoI form

Please include the reference number above. You may request an internal review where you believe Ordnance Survey has:

  • Failed to respond to your request within the time limits (normally 20 working days)
  • Failed to tell you whether or not we hold the information
  • Failed to provide the information you have requested
  • Failed to explain the reasons for refusing a request
  • Failed to correctly apply an exemption or exception

The Internal Review Officer will not have been involved in the original decision. They will conduct an independent internal review and will inform you of the outcome of the review normally within 20 working days, but exceptionally within 40 working days, in line with the Information Commissioner’s guidance.

The Internal Review Officer will either: uphold the original decision, provide an additional explanation of the exemption/s applied or release further information, if it is considered appropriate to do so.

Appeal to Information Commissioner’s Office (ICO)
If, following the outcome of the internal review you remain unhappy with our response, you may raise an appeal, within three months of receiving our response, with the Information Commissioner’s Office.

Further information can be found on the ICO website ( under ‘Report a concern’ or you may wish to call the ICO helpline on 0303 123 1113.