Company profile · Builders
CGN Construction Ltd
CGN Construction Ltd is a newly incorporated private limited company registered in London, company number 16800843, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 21 July 2027, and its first CT600 is due at HMRC on 20 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where CGN Construction Ltd is registered
The registered office is in London (SE17), in the Southwark local authority area, London. Show SE17 2RN on a map.
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What happens if CGN Construction 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 21 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Jul 2027 to 21 Aug 2027 | £150 |
| 1 to 3 months late | 22 Aug 2027 to 21 Oct 2027 | £375 |
| 3 to 6 months late | 22 Oct 2027 to 21 Jan 2028 | £750 |
| More than 6 months late | From 22 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16800843
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 October 2025
- Registered office
- 3 Ivychurch Lane, London, SE17 2RN
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
- Previous names
- NFG Construction Ltd (until 10 Nov 2025)
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 London
Other active building contractors registered in London.
- Cgrama Construction Ltd2025
- CGT68 Construction Ltd2020
- CH Construction (Surrey) Limited2022
- CH Constructions Limited2018
- Chaboun Constructions Ltd2019
- Chali Builders Limited2024
- Chalkstone Ltd2026
- Champion Trade Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are CGN Construction Ltd's accounts due?
CGN Construction Ltd's next accounts are due at Companies House by 21 July 2027 (in 282 days), covering the period to 31 October 2026.
When is CGN Construction 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 20 October 2026, due by 20 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CGN Construction Ltd still trading?
CGN Construction 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 CGN Construction Ltd do?
CGN Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is CGN Construction Ltd?
CGN Construction Ltd was incorporated on 21 October 2025, less than a year ago.
What is the penalty if CGN Construction 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 CGN Construction 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.