- Companies
- Civil engineering
- London
- Calgary Trading & Contracting UK Ltd
Calgary Trading & Contracting UK Ltd
- Company number
- 15272494
- Incorporated
- 9 Nov 20232 years trading
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, England, W1W 5PF
- Nature of business
- Construction of other civil engineering projects n.e.c.; Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.; Agents involved in the sale of timber and building materials
Calgary Trading & Contracting UK Ltd is a 2-year-old private limited company registered in London, company number 15272494, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 30 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Calgary Trading & Contracting UK Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
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Shared registered office
1,494 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Calgary Trading & Contracting UK 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 15272494
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 November 2023 (2 years ago)
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, England, W1W 5PF
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999)
Agents involved in the sale of timber and building materials (SIC 46130) - Year end
- 30 November (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 8 November 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Callias Professional Services Ltd2015
- Can Oktay Kilic Ltd2020
- Canalside Moorings Limited2018
- Candour Consultants Limited2022
- Cani Structures Limited2023
- Cannon Connect Ltd2025
- Cannoncomm Ltd2016
- Capital Construction (Southern) Limited1993
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Calgary Trading & Contracting UK Ltd's accounts due?
Calgary Trading & Contracting UK Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Calgary Trading & Contracting UK Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Calgary Trading & Contracting UK Ltd still trading?
Calgary Trading & Contracting UK 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 Calgary Trading & Contracting UK Ltd do?
Calgary Trading & Contracting UK Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999); Agents involved in the sale of timber and building materials (SIC 46130).
How old is Calgary Trading & Contracting UK Ltd?
Calgary Trading & Contracting UK Ltd was incorporated on 9 November 2023, 2 years ago.
What is the penalty if Calgary Trading & Contracting UK 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 Calgary Trading & Contracting UK 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.