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Company number
09044320

51 CASTLE STREET LIMITED

Active
✓ Active company on the official register. Next accounts due 28 February 2027.

Company details

East of England, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
51 CASTLE STREET LIMITED
Company number
09044320
Registered office
104 HIGH STREET, LONDON COLNEY, ST. ALBANS, HERTFORDSHIRE, AL2 1QL, ENGLAND · 29 other companies at this postcode
Company type
Private Limited Company
Incorporated on
16 May 2014
Status
Active
Age
12 years
Nature of business (SIC)
68100 — Buying and selling of own real estate
Accounts — next due
28 Feb 2027
Accounts — last made up to
31 May 2025
Confirmation statement — next due
30 May 2027
Confirmation statement — last
16 May 2026

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Mr Anthony Carr
owns 25–50% of shares · holds 25–50% of voting rights
Notified 06/04/2016
Mr Spencer Robert Heydon
owns 25–50% of shares · holds 25–50% of voting rights
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

2 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Mr Anthony Carr
born 07/1969 · England owns 25–50% of shares · holds 25–50% of votes Notified 06/04/2016
Mr Spencer Robert Heydon
born 03/1974 · United Kingdom owns 25–50% of shares · holds 25–50% of votes Notified 06/04/2016 Controls 22 companies

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
06/04/2016 Person with significant control added Mr Spencer Robert Heydon
06/04/2016 Person with significant control added Mr Anthony Carr

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2025FY2024
Total assets less current liabilities 1,871
▲ 3.5%
1,807
Net assets 305
▲ 24.4%
245
Employees (avg) 0 0

Documents for 51 CASTLE STREET LIMITED

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Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Data protection register

Registered with the Information Commissioner's Office as a data protection fee payer.

51 Castle Street Ltd — AL2 1QL
Tier 1 · renews 05/01/2027
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

Get this company via API

Every field on this page is available as structured JSON behind one endpoint and one API key.

GET /v1/company/gb/09044320
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of 51 CASTLE STREET LIMITED?
According to the official registry, the company number of 51 CASTLE STREET LIMITED is 09044320.
Where is 51 CASTLE STREET LIMITED registered?
The registered office is 104 HIGH STREET, LONDON COLNEY, ST. ALBANS, HERTFORDSHIRE, AL2 1QL, ENGLAND.
What is the SIC code of 51 CASTLE STREET LIMITED?
The nature of business is recorded under SIC code 68100 — Buying and selling of own real estate.
Who controls 51 CASTLE STREET LIMITED?
Mr Anthony Carr is recorded as a person with significant control, and owns 25–50% of shares, holds 25–50% of voting rights.
When are the next accounts of 51 CASTLE STREET LIMITED due?
The next annual accounts are due by 28 February 2027, and the last accounts were made up to 31 May 2025.

About 51 CASTLE STREET LIMITED (09044320)

51 CASTLE STREET LIMITED is a private limited company incorporated on 16 May 2014 and registered in the United Kingdom under company number 09044320. Its registered office is at 104 HIGH STREET, LONDON COLNEY, ST. ALBANS, HERTFORDSHIRE, AL2 1QL, ENGLAND. The recorded nature of business is buying and selling of own real estate (SIC 68100). The company is currently active , with statutory accounts last made up to 31 May 2025. , and the person with significant control is Mr Anthony Carr. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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