- Company number
- 15915223
- Incorporated
- 23 Aug 20242 years trading
- Registered office
- Flat 4 Columbium Court, 2 Tweedy Road, Bromley, BR1 3FA
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Columbium Ltd is a 2-year-old private limited company registered in Bromley, company number 15915223, one of 197 building contractors in Bromley. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Who runs and owns Columbium Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| F*** I*** | Director | Aug 2024 |
Person with significant control
Where Columbium Ltd is registered
The registered office is in Bromley (BR1), in the Bromley local authority area, London. Show BR1 3FA on a map.
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What happens if Columbium Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 15915223
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 August 2024 (2 years ago)
- Registered office
- Flat 4 Columbium Court, 2 Tweedy Road, Bromley, BR1 3FA
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 22 August 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Bromley
Other active building contractors registered in Bromley.
- Crown Heart Facades Ltd2023
- Curtis and Cavendish Builders Limited2007
- D F S Civils Ltd2026
- D Hall Carpentry and Building Services Ltd2019
- D&D Rendering Ltd2026
- D&F Developments Ltd2023
- D&T General Construction Ltd2024
- Daa London Ltd2023
All building contractors in Bromley · All trades in Bromley · Builders across the UK
Frequently asked questions
When are Columbium Ltd's accounts due?
Columbium Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Columbium Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Columbium Ltd still trading?
Columbium Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Columbium Ltd do?
Columbium Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Columbium Ltd?
Columbium Ltd was incorporated on 23 August 2024, 2 years ago.
Who runs Columbium Ltd?
Columbium Ltd has 1 active director, the longest-serving appointed in Aug 2024. Their names and service addresses are on the Companies House register.
Who owns Columbium Ltd?
One person or company has significant control of Columbium Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Columbium Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Columbium Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.