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- 3RD Rail Resource Ltd
Company profile · Civil engineering
3RD Rail Resource Ltd
3RD Rail Resource Ltd is a 5-year-old private limited company registered in London, company number 13166550, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 January 2026, as filed at Companies House.
3RD Rail Resource Ltd over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £56K (+490.7%) on the year before, to £67K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £63K against £19K owed within a year: 3.4 times cover.
- 4 employees on average, up from 1 the year before.
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £67K | £25K | £63K | £19K | 4 |
| 31 Jan 2025 | £11K | £6,135 | £5,648 | 1 | |
| 31 Jan 2024 | £45 | £455 | £500 | 1 | |
| 31 Jan 2023 | -£45 | £455 | £500 | 1 | |
| 31 Jan 2022 | -£45 | £455 | £500 | 1 |
Where 3RD Rail Resource Ltd is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 9NN on a map.
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Shared registered office
35 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 3RD Rail Resource 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 13166550
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 January 2021 (5 years ago)
- Registered office
- 5 Greenwich View Place, London, E14 9NN
- Nature of business
- Construction of railways and underground railways (SIC 42120)
Temporary employment agency activities (SIC 78200) - Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 10 July 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 London
Other active civil engineering contractors registered in London.
- 3S Bridge Limited2018
- 5 Star Drainage Ltd2022
- 6Igma Ltd2026
- 73 Architecture Ltd2019
- 7Iyi Professional Services Limited2014
- A Bici Fixing Ltd2016
- A Bowry Limited2020
- A E Railway Solutions Ltd2014
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are 3RD Rail Resource Ltd's accounts due?
3RD Rail Resource Ltd's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is 3RD Rail Resource Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is 3RD Rail Resource Ltd still trading?
3RD Rail Resource 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 3RD Rail Resource Ltd do?
3RD Rail Resource Ltd is registered under Construction of railways and underground railways (SIC 42120); Temporary employment agency activities (SIC 78200).
How old is 3RD Rail Resource Ltd?
3RD Rail Resource Ltd was incorporated on 29 January 2021, 5 years ago.
What is the penalty if 3RD Rail Resource 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 3RD Rail Resource 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.