A registered office is the statutory address for a company's official post — it says nothing certain about where the company actually trades.
It may be a director's home, an accountant's or solicitor's office, a formation agent's address or a virtual-office service, and any of those can be entirely lawful. The practical question is not whether an address type looks impressive, but what it does and does not tell you before you rely on it. This guide sets out the current rules, why concentration at one address is normal, and a review checklist that keeps observed fact separate from inference. For the wider set of fields on a company's record, see the Companies House data guide.
What a registered office is, in law
Under current Companies House guidance on the registered office address (checked 17 September 2026), the address a company registers must be a physical address in the UK, in the same country the company is registered in, and it must be "appropriate": someone acting for the company must be made aware of post delivered there, and a sender must be able to get confirmation of delivery. A Royal Mail PO Box, or a similar service from another provider, is no longer allowed. A company may use a service provider's address — for example an accountant's or solicitor's office — with that provider's permission. The registered office is published on the public register; a separate registered email address is not published. These rules took effect on 4 March 2024 under the Economic Crime and Corporate Transparency Act 2023.
Companies House also holds a related but distinct address for each officer. A director's service address is a correspondence address on the public register, which can be the registered office or somewhere else. The director's usual residential address must still be given to Companies House but is kept on a private register, not published (Companies House guidance on personal information on the register, checked 17 September 2026). A published service address is not evidence of where a director lives.
The Registrar also has power to move a company to a Companies House default address when a registered office is found not appropriate. This guide does not restate the specifics of when that happens — treat a default-address record as a distinct, factual signal (below) and check the current record rather than assuming a timetable.
Why one address so often serves many companies
A large share of registered offices belong to accountants, formation agents and virtual-office or mail-handling services, and that pattern is normal and lawful, not a sign of anything irregular. A founder who wants to incorporate quickly and cheaply, work from home without publishing a home address, or hand ongoing compliance to a professional will often end up sharing an address with hundreds of other companies that made the same reasonable choice. A shared address is context for a review, not a score, and it must never be treated as evidence that a company is a shell, is unreachable, or is trying to hide something.
The registered-office review checklist
The table below is a working checklist for turning an observed address pattern into a factual note, without drifting into a guess about intent, legitimacy or trading location. Use it before a shortlist decision, alongside the wider review process in reviewing and shortlisting newly incorporated companies.
| Evidence observed | Possible neutral explanations | Conclusion permitted | Conclusion NOT permitted | Next action |
|---|---|---|---|---|
| Address matches a known accountancy practice | The founder's own accountant lets clients use the firm's address as a registered office; the firm handles the company's compliance filings. | The address is associated with an accountancy practice. | That the company already has that firm as its ongoing accountant, or any accountant at all. | Record the observation as context; continue the review as you would for any other record. |
| Address is a formation agent or company-formation service | The founder used a low-cost formation service to incorporate quickly, then works from a different, unregistered location, or has not yet updated the record. | The company was very likely incorporated through that service. | That the company is not trading, is a shell, or is a weaker prospect than any other record. | Treat as an ordinary record; do not deprioritise on this basis alone. |
| Address is a serviced or virtual office, or a mailbox service | A cost-effective way to have a professional postal address while working from home, from client sites, or before committing to premises — common for early-stage and single-director companies. | Post to this address is likely handled by a third party and may take longer to reach the company. | That the company has no genuine operation, or is fraudulent. | Note the possible forwarding delay; the review otherwise proceeds as normal. |
| Address appears residential | Using a home address as a registered office is common and lawful, particularly for sole-director and early-stage companies. | This may be a home address used lawfully as the registered office. | Any inference about the occupant's identity, finances or personal circumstances. | Treat identically to any other registered office. Never search for information about a named individual beyond the company record itself. |
| Address components are missing or malformed | A filing error at incorporation or a later update; Companies House does not independently verify every filed detail. | The filed record has a data-quality issue. | Any judgement about the company's legitimacy or intent based on the error. | Flag for manual confirmation on the current Companies House record before relying on the address for anything. |
| Many recent incorporations share one address (concentration) | An accountancy firm, formation agent, serviced office or group/subsidiary structure serving many clients or related entities from one address. | The address is used by other companies on the register; it is a commonly used address. | An exact count as a published finding, or any inference of large-scale abuse from the pattern alone. | Note "shared with other companies" as context and continue the review; do not quote a specific figure. |
| Address is a Companies House default address | None that changes the fact: the Registrar has substituted its own address because the company's filed address was not accepted as appropriate. | Post sent to the registered office will not reach the company until it files a new, appropriate address. | Any assumption about why the original address was rejected, or that the company is dissolved. | Hold outreach and mark the record as insufficient information until a new registered office appears on the record. |
| Address is in a different area from what the company name or activity suggests | A company can register anywhere in the same UK jurisdiction regardless of where it trades; the founder may use a distant accountant or agent, or intend to trade in the target area despite a distant registered office. | The registered office sits outside the practice's target area. | That the company does not trade in the target area, or is a weaker prospect generally. | If the practice's targeting depends on trading location, treat as a geography question; when unclear, mark for further research rather than an automatic exclusion. |
Spotting each pattern with public information only
Every check above can be done with public sources in a small, fixed amount of time. Search the address text on the Companies House Advanced company search to see roughly how many other companies currently show it — a rough view of concentration, since the address filter is a text match rather than a precise key. If a firm appears to occupy the address, look for its own public listing rather than guessing. Time-box this per company and stop once the checklist row is complete; this is a factual check on an address, never an occasion to look into the people associated with it.
For an aggregate, place-level view of how concentrated registered offices are across the country, see the published statistics methodology, which sets out how address concentration is measured and reported without naming any address.
Worked examples (fictional)
The three records below are fictional composites built to demonstrate the checklist. No real address, company or person is described.
| Fictional record | Registered office (fictional) | Evidence observed | Checklist conclusion |
|---|---|---|---|
| Example Bookkeeping (Fictional) Ltd | 12 Example Street, Exampletown, EX1 1AA | Address matches an identifiable local accountancy practice's public listing. | Address associated with an accountancy practice; not evidence this company already has an ongoing adviser. |
| Sample Roofing Services (Fictional) Ltd | Unit 4, Sample Business Centre, Exampleford, EX2 2BB | Address matches a known serviced-office brand; no accountancy or formation-agent listing found. | Post likely forwarded by a third party; allow extra time; no conclusion about trading or legitimacy. |
| Trial Consulting (Fictional) Ltd | 5 Trial Gardens, Exampleton, EX3 3CC | Address format is residential; no business listing found at the address. | May be a lawfully used home address; no inference drawn about the occupant. |
What this checklist does not do
It does not identify a trading address, confirm that a company has or lacks an accountant, or produce a score. No aggregate figure for how many companies typically share a registered office is published on this page — where concentration is relevant, describe it as "many" rather than quoting a number you cannot support. Contact-law questions — whether and how a company may be approached — are covered separately in GDPR and contacting new companies; this checklist only helps a reviewer record what an address shows before that decision is made.
Review matches with the address type shown
Launch Register marks matches whose registered office is a known provider address, so a practice can apply this checklist faster; the conclusions remain the practice's.
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