PO Box 780 Bury St Edmunds, IP33 9NN, is a postal correspondence address associated with the Moreton Hall area of Suffolk, England. It uses a large-user postcode, a classification commonly associated with organisations receiving substantial volumes of mail or operating dedicated postal arrangements.
One important detail is that Suffolk County Council used PO Box 780 as the return address on a public consultation postcard in 2024. This provides documentary evidence of the address being used for official correspondence. However, it does not establish who currently rents or controls the PO Box.
For anyone receiving an unexpected letter, understanding the difference between a return address, a mail-processing facility and the organisation responsible for the correspondence is essential.
What Is PO Box 780 Bury St Edmunds IP33 9NN?
PO Box 780 is a designated postal address within the Bury St Edmunds postal area. Unlike an ordinary residential or commercial street address, a PO Box allows mail to be received and managed through a dedicated postal service.
The associated postcode, IP33 9NN, falls within the Moreton Hall ward of West Suffolk. Public postcode records identify it as a large-user postcode introduced in February 2021.
The main address details are outlined below.
| Address information | Details |
| PO Box number | 780 |
| Postal town | Bury St Edmunds |
| Postcode | IP33 9NN |
| County | Suffolk |
| Local authority | West Suffolk |
| Electoral ward | Moreton Hall |
| Country | England, United Kingdom |
| Postcode classification | Large user |
| Postcode introduction | February 2021 |
| Documented historical use | 2024 public consultation return address |
| Current exclusive holder | Not independently confirmed |
| Public-facing office | Not established |
A large-user postcode is different from a normal postcode covering several neighbouring homes or businesses. It is generally allocated to an individual high-volume postal destination.
This classification helps explain the address’s operational purpose, but it does not independently identify the organisation receiving the mail.
Who Has Used PO Box 780 Bury St Edmunds?
The strongest publicly verifiable connection found for PO Box 780 concerns a Suffolk County Council consultation relating to improvements to the A12 road network.
An official A12 Major Road Network consultation postcard published for the 2024 consultation displays the following return address:
PO Box 780
Bury St Edmunds
IP33 9NN
The postcard invited residents to comment on proposed improvements to junctions, public transport facilities and walking and cycling infrastructure along the A12.
The consultation ran until 29 October 2024, with public events arranged during September and October.
This is important because the document establishes a genuine, identifiable use of the postcode and PO Box number together.
However, it is necessary to distinguish three things:
- Documented use: The address appeared on official council consultation material in 2024.
- Operational control: The postcard does not establish whether the council or a contracted mailing provider managed the return address.
- Current ownership: The historical document does not confirm who holds the PO Box in October 2026.
Councillor Chris Chambers, then Suffolk County Council’s cabinet member for transport strategy, planning and waste, encouraged public participation when discussing the A12 consultation:
“I encourage residents to take a look at the plans, read up on the benefits and let us know their thoughts.”
His comments, published in September 2024, provide context for the consultation campaign in which the PO Box appeared. They should not be interpreted as a statement about the ownership of the address.
The example illustrates how dedicated postal addresses can be used for administrative projects without necessarily functioning as the organisation’s principal office.
Similar arrangements appear in public-sector correspondence, including the use of PO Box 585 Belfast for administrative return mail, where the postal address and the department responsible for the contents of a letter serve different purposes.
Why Is PO Box 780 Connected to Moreton Hall in Suffolk?

IP33 9NN is geographically associated with Moreton Hall, an established residential and commercial area of Bury St Edmunds.
The location is part of the wider West Suffolk administrative district. Postcode mapping places the reference point around the Skyliner Way area, near postal and commercial facilities.
However, a geographical reference point should not be confused with the actual premises of an organisation using the address.
For large-user postcodes, geographical coordinates may reflect a postal-processing location rather than a public-facing business office.
Geographic Reference and Postal Delivery
| Geographic attribute | Recorded information |
| Postcode district | IP33 |
| Postcode sector | IP33 9 |
| Electoral ward | Moreton Hall |
| Local authority district | West Suffolk |
| Approximate latitude | 52.2422 |
| Approximate longitude | 0.7531 |
| Ordnance Survey grid reference | TL880640 |
| Postal designation | Large user |
These geographic details are useful for identifying the general administrative location of the postcode.
They should not be used to assume that the organisation receiving correspondence operates a reception desk, office or customer service centre at those coordinates.
The distinction matters particularly when someone searches for the address on a map and finds a postal facility rather than the expected organisation.
How Does PO Box 780 Work as a Postal Correspondence Address?
A PO Box separates the postal destination used for receiving correspondence from the physical location where an individual or organisation operates.
Royal Mail provides two principal arrangements: PO Box Collect and PO Box Deliver.
Under the collection service, incoming mail is held for the customer at an applicable Customer Service Point. With the delivery option, mail received through the PO Box is delivered to the customer’s nominated address.
These services allow businesses and other organisations to control how correspondence is received without necessarily publishing their operational premises.
Return-Address Handling
A return address has a slightly different purpose from an address used to send a reply.
When organisations distribute large numbers of letters or postcards, some items may be undeliverable because the recipient has moved, the address is incomplete or delivery cannot be completed.
A designated return address allows these items to be directed into an organised handling process.
For example, a public consultation campaign may use a return address in Bury St Edmunds even when the subject of the consultation concerns another part of Suffolk.
This does not automatically mean that members of the public should send completed questionnaires, payment documents or confidential information to that address.
An organisation may provide separate contact details for responses and enquiries.
Mail Collection and Delivery Arrangements
Dedicated postal services offer several operational benefits:
- Centralised handling of incoming correspondence.
- Separation between customer mail and routine office deliveries.
- Improved management of returned or undeliverable items.
- Protection of private residential or operational addresses.
- Consistent postal contact details across different campaigns.
- Easier administration of large volumes of correspondence.
The process of obtaining a PO Box in the UK also demonstrates why organisations may select dedicated mail arrangements rather than relying solely on a conventional street address.
However, there is no verified public evidence establishing whether PO Box 780 currently operates under a collection service, delivery service or another contracted correspondence arrangement.
How Can You Identify the Sender of a Letter Showing PO Box 780?
The most effective way to identify an unexpected letter is to examine the information inside it rather than relying entirely on the address printed on the envelope.
A return address may identify the location handling undelivered post, while the actual sender may be a separate organisation.
Sender Verification Checklist
Before responding, consider the following checks:
- Examine the organisation’s name. Identify the department, business or institution claiming responsibility for the letter.
- Check the subject. Determine whether the correspondence relates to an existing account, application, consultation or previous enquiry.
- Look for reference numbers. Compare account numbers, case references or document identifiers with records you already possess.
- Verify contact information. Obtain the organisation’s telephone number or email address independently rather than relying solely on the letter.
- Review the requested action. Check whether the sender wants a reply, payment, identity documents or other sensitive information.
- Confirm the correspondence address. Where a response is required, verify that the organisation currently accepts mail at PO Box 780.
The distinction between postal handling and organisational identity is particularly evident with PO Box 189 Huddersfield HD8 1DY, an address reported in connection with correspondence involving different types of organisations.
This demonstrates why a return address alone may be insufficient to identify the sender of an individual letter.
Where a letter concerns a government service, official departmental contact information should be used to verify its authenticity.
If the document relates to a business, its legal identity and registered office can be checked separately from its mailing address.
Is PO Box 780 Bury St Edmunds a Scam Address?
There is no verified evidence establishing that PO Box 780 Bury St Edmunds is inherently fraudulent.
Its documented appearance on official public-sector correspondence provides evidence of legitimate historical use.
Nevertheless, a genuine postal address does not guarantee that every letter displaying it is authentic.
Fraudsters can reproduce publicly available postal details, logos, reference numbers and professional-looking letter layouts.
This means the legitimacy of the address and the legitimacy of a particular communication must be assessed separately.
Louise Baxter MBE, a consumer protection specialist who previously headed the National Trading Standards Scams Team, warned in published commentary in 2017:
“Mail scams tend to target vulnerable individuals such as older people living alone”
Her observation highlights the importance of checking unexpected correspondence carefully, particularly when money or confidential information is involved. It was general advice about postal fraud, not a warning about PO Box 780 specifically.
Some warning signs deserve particular attention:
- Unexpected demands for immediate payment.
- Requests for banking passwords or security codes.
- Threats of legal proceedings without adequate explanation.
- Requests to transfer funds to an unfamiliar account.
- Instructions to keep correspondence confidential.
- Payment details that do not match the named organisation.
- Unusual pressure to respond before independently verifying the sender.
An unfamiliar address is not itself a reason to regard a letter as fraudulent. Equally, familiar branding should not override these warning signs.
For comparison, the considerations surrounding PO Box 7472 Bilston WV14 4BZ show why recipients should verify the organisation and its instructions rather than trusting a postcode alone.
Anyone concerned about a suspicious postal communication can use the official postal fraud reporting guidance.
If a payment has already been made and fraud is suspected, contacting the bank promptly is particularly important.
Can You Send Letters or Visit PO Box 780 Bury St Edmunds?

A PO Box is a valid type of postal destination, but it should not automatically be treated as an address where visitors can meet an organisation’s representatives.
Someone who has been specifically instructed to use PO Box 780 may be able to send mail to it through Royal Mail, provided the address remains active and the organisation has confirmed that it is appropriate for the intended correspondence.
The normal address format would be:
Recipient or Department Name
PO Box 780
Bury St Edmunds
IP33 9NN
United Kingdom
Including the intended recipient is particularly important for business or administrative correspondence.
Before posting valuable documents, original certificates or sensitive personal information, the sender should verify that the intended organisation currently uses the address.
The historical use of PO Box 780 as a return address does not necessarily mean that it is suitable for every type of incoming correspondence.
Private courier deliveries may also be subject to different restrictions from normal postal services.
Likewise, visiting the postcode in person is unlikely to provide a reliable method of contacting the organisation associated with a particular letter.
For practical purposes, a verified telephone number, official email address or published customer service location is generally more useful than attempting to visit a PO Box.
Can PO Box 780 Be Used as a Company’s Registered Office?
A Royal Mail PO Box cannot, by itself, serve as the registered office address of a UK limited company under current Companies House requirements.
A registered office must be an appropriate physical address in the relevant UK jurisdiction.
It must also allow correspondence to reach someone acting on behalf of the company and enable delivery to be acknowledged.
The distinction between a registered office and a postal correspondence address is important.
| Address type | Main purpose | Suitable as a registered office? |
| Royal Mail PO Box | Receiving or managing correspondence | No, not on its own |
| Physical business premises | Business operations and correspondence | Yes, if requirements are met |
| Professional service provider’s address | Receiving and managing company documents | Yes, if it meets statutory requirements |
| Return-mail processing address | Handling undeliverable correspondence | Not by itself |
| Virtual office | Business address services | Only if it meets registered-office requirements |
The current rules are explained in the official registered-office address requirements.
A business using a PO Box for routine correspondence may therefore have a completely different registered office.
Consequently, searching for IP33 9NN in company registration records may not identify every organisation that has used the postal address.
What Should You Know About Other PO Box Addresses in the UK?
PO Boxes are used across many sectors, including financial administration, public services, customer correspondence and document processing.
However, their functions can differ considerably.
Some addresses are associated with a specific institution or department. Others are used in centralised mailing arrangements where a service provider processes correspondence for several clients.
The use of PO Box 6887 Coventry CV3 9SD provides an example of how a mail-processing address can appear on communications relating to different organisations.
This makes it important to avoid assumptions based on similar PO Box numbers or neighbouring postcodes.
Even when two PO Boxes are assigned within the same postal district, they may belong to entirely unrelated customers.
For PO Box 780, the known historical public-sector use is relevant, but it should not be extended into an unsupported claim about every organisation that may currently use the address.
What Are the Most Common Questions About PO Box 780 Bury St Edmunds?
| Question | Answer |
| Is PO Box 780 a genuine postal address? | The full address is documented on an official 2024 public consultation postcard. |
| What is the postcode? | IP33 9NN. |
| Where is the postcode registered geographically? | Moreton Hall, Bury St Edmunds, Suffolk. |
| Who has used this PO Box? | Suffolk County Council published a 2024 consultation postcard carrying it as the return address. |
| Who currently owns or operates it? | The current exclusive holder has not been independently established. |
| Is IP33 9NN a residential postcode? | No. It is classified as a large-user postcode. |
| Can a letter displaying this address be fraudulent? | Potentially. The authenticity of individual correspondence must be checked independently. |
| Can you visit the address? | There is no established public-facing office for PO Box 780. |
| Can you reply to this address? | Only after confirming that the intended organisation currently accepts correspondence there. |
Conclusion
PO Box 780 Bury St Edmunds, IP33 9NN, is a documented postal correspondence address associated with the Moreton Hall area of Suffolk.
Its classification as a large-user postcode helps explain why it differs from a conventional residential or business street address.
More importantly, an official 2024 Suffolk County Council consultation postcard confirms that the address was used as a return-mail destination in a public-sector communication.
That evidence establishes a legitimate historical use, but it does not identify the current exclusive holder or prove that every letter using the address originates from the same organisation.
For recipients, the most reliable approach is to examine the communication, identify the organisation responsible and verify any requested action using independently obtained contact details.
The essential distinction is simple: a documented postal address helps establish where correspondence can be handled, but the contents and independently verified sender determine whether an individual letter should be trusted.
FAQs About PO Box 780 Bury St Edmunds
Who Owns PO Box 780 Bury St Edmunds IP33 9NN?
The current owner is not publicly confirmed. Suffolk County Council previously used this address for its A12 road consultation in 2024.
Why Have I Received a Letter From PO Box 780 Bury St Edmunds?
The letter may concern administrative services, public consultations or official correspondence. Check the sender’s details before responding.
Is PO Box 780 Bury St Edmunds a Legitimate Address?
Yes, the address has appeared on official public-sector correspondence. However, verify unexpected letters before sharing personal or financial information.
Is PO Box 780 Linked to Suffolk County Council?
Suffolk County Council used this PO Box for an A12 transport consultation in 2024, but its current ownership remains unconfirmed.
What Does the IP33 9NN Postcode Represent?
IP33 9NN is a large-user postcode associated with Moreton Hall, Bury St Edmunds, Suffolk, commonly used for organisational correspondence.
Can I Send Personal Documents to PO Box 780?
Yes, but only after confirming that the intended organisation currently uses this address and accepts sensitive documents.
How Can I Check Whether a Letter From PO Box 780 Is a Scam?
Verify the sender through official contact channels and watch for suspicious payment requests, urgent threats or demands for banking details.
Can I Visit PO Box 780 Bury St Edmunds in Person?
No public-facing office is confirmed at this address. Contact the organisation directly before planning a visit.
Does Royal Mail Reveal Who Uses PO Box 780?
Royal Mail maintains PO Box records, but publicly available postcode information may not reveal the current holder.
What Should I Do if I Receive Suspicious Mail With This Return Address?
Avoid sharing personal details or making payments, preserve the letter and report suspected fraud through the appropriate UK authorities.