- Companies
- Civil engineering
- London
- James Cubitt Oil & Gas International Ltd
James Cubitt Oil & Gas International Ltd
- Company number
- 11508481
- Incorporated
- 9 Aug 20188 years trading
- Registered office
- 2 Allen Street, London, W8 6BH
- Nature of business
- Construction of utility projects for fluids; Construction of other civil engineering projects n.e.c.; Other specialised construction activities n.e.c.
James Cubitt Oil & Gas International Ltd is a 8-year-old private limited company registered in London, company number 11508481, one of 1,853 civil engineering contractors in London. 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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Finances
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 £229 (+229%) on the year before, to £329.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- Current assets of £28K against £54 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £329 | £100 | £28K | £54 | 0 |
| 31 Aug 2024 | £100 | £100 | 0 | ||
| 31 Aug 2023 | £100 | £100 | 0 | ||
| 31 Aug 2022 | £100 | £100 | 0 | ||
| 31 Aug 2021 | £100 | £100 | 0 | ||
| 31 Aug 2020 | £100 | £100 | 0 | ||
| 31 Aug 2019 | £100 | £100 |
Where James Cubitt Oil & Gas International Ltd is registered
The registered office is in London (W8), in the Kensington and Chelsea local authority area, London. Show W8 6BH on a map.
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Also registered at this address
4 other companies use the same registered office as James Cubitt Oil & Gas International Ltd.
- Arc SB 2 LimitedProperty developers
- Berkeley Investment Consultancy LimitedProperty developers
- Hunt & Harris LtdBuilders
- Montrose Construction LtdProperty developers
What happens if James Cubitt Oil & Gas International 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
- 11508481
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 August 2018 (8 years ago)
- Registered office
- 2 Allen Street, London, W8 6BH
- Nature of business
- Construction of utility projects for fluids (SIC 42210)
Construction of other civil engineering projects n.e.c. (SIC 42990)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 23 April 2026
- Previous names
- James Cubitt International Ltd (until 23 Aug 2023)
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.
- Jarnc Construction Ltd2025
- Jaron Services Ltd2015
- Jarr Build Ltd2023
- JB Tilers Ltd2013
- JCM Utilities Ltd2018
- Jcoops Ltd2024
- JCR Communications Ltd2022
- JCS Engineering Services Limited2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are James Cubitt Oil & Gas International Ltd's accounts due?
James Cubitt Oil & Gas International Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is James Cubitt Oil & Gas International 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 James Cubitt Oil & Gas International Ltd still trading?
James Cubitt Oil & Gas International 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 James Cubitt Oil & Gas International Ltd do?
James Cubitt Oil & Gas International Ltd is registered under Construction of utility projects for fluids (SIC 42210); Construction of other civil engineering projects n.e.c. (SIC 42990); Other specialised construction activities n.e.c. (SIC 43999).
How old is James Cubitt Oil & Gas International Ltd?
James Cubitt Oil & Gas International Ltd was incorporated on 9 August 2018, 8 years ago.
What is the penalty if James Cubitt Oil & Gas International 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 James Cubitt Oil & Gas International 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.