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- Four3Ec Ltd
Company profile · Civil engineering
Four3Ec Ltd
Four3Ec Ltd is a 1-year-old private limited company registered in Derby, company number 16474692, one of 136 civil engineering contractors in Derby. Its next accounts are due at Companies House on 27 February 2027, and its first CT600 is due at HMRC on 26 May 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 Four3Ec Ltd is registered
The registered office is in Derby (DE1), in the Derby local authority area, East Midlands. Show DE1 1DZ on a map.
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Shared registered office
30 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 Four3Ec 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 27 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Feb 2027 to 27 Mar 2027 | £150 |
| 1 to 3 months late | 28 Mar 2027 to 27 May 2027 | £375 |
| 3 to 6 months late | 28 May 2027 to 27 Aug 2027 | £750 |
| More than 6 months late | From 28 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16474692
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 May 2025 (1 year ago)
- Registered office
- Sixth Floor Cavendish Building, 1 Agard Street, Derby, Derbyshire, DE1 1DZ
- Nature of business
- Construction of railways and underground railways (SIC 42120)
Electrical installation (SIC 43210)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 26 May 2026
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 Derby
Other active civil engineering contractors registered in Derby.
- FP Construction Limited2012
- Garmendale Engineering Limited1989
- George W. Heath & Sons (Builders) Limited1969
- Goodwin Tanks Limited1983
- Gunneys Limited2014
- Hallgate Contractors Limited2001
- HFM Civil Engineering Ltd2024
- Hodgkinson Builders (Commercial) Limited2012
All civil engineering contractors in Derby · All trades in Derby · Civil engineering across the UK
Frequently asked questions
When are Four3Ec Ltd's accounts due?
Four3Ec Ltd's next accounts are due at Companies House by 27 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Four3Ec 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 26 May 2026, due by 26 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Four3Ec Ltd still trading?
Four3Ec 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 Four3Ec Ltd do?
Four3Ec Ltd is registered under Construction of railways and underground railways (SIC 42120); Electrical installation (SIC 43210); Management consultancy activities other than financial management (SIC 70229).
How old is Four3Ec Ltd?
Four3Ec Ltd was incorporated on 27 May 2025, 1 year ago.
What is the penalty if Four3Ec 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 Four3Ec 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.