- Companies
- Civil engineering
- London
- Sirius Ecodev (Vause) Ltd
Sirius Ecodev (Vause) Ltd
- Company number
- 12121459
- Incorporated
- 24 Jul 20197 years trading
- Registered office
- 2 ST James's Street, 6TH Floor, London, SW1A 1EF
- Nature of business
- Construction of other civil engineering projects n.e.c.
Sirius Ecodev (Vause) Ltd is a 7-year-old private limited company registered in London, company number 12121459, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 unchanged on the year before, at £4.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £4 | £277K | £0 | 0 | |
| 31 Dec 2024 | £4 | £260K | £0 | 0 | |
| 31 Dec 2023 | £4 | £261K | £7,092 | 0 | |
| 31 Dec 2022 | £4 | £226K | £0 | 0 | |
| 31 Dec 2021 | £4 | £180K | £4,800 | 0 | |
| 31 Jul 2020 | £2 | £2 | 0 |
Where Sirius Ecodev (Vause) Ltd is registered
The registered office is in London (SW1A), in the Westminster local authority area, London. Show SW1A 1EF on a map.
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Also registered at this address
6 other companies use the same registered office as Sirius Ecodev (Vause) Ltd.
- Martin Homes Buckingham Road LimitedProperty developers
- MM Partnerships LtdProperty developers
- RC Antemma Developments LimitedProperty developers
- RC Developments (Martello) LimitedBuilders
- Shell Green LtdCivil engineering
- Sirius Ecodev (Tealing) LtdCivil engineering
What happens if Sirius Ecodev (Vause) 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12121459
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2019 (7 years ago)
- Registered office
- 2 ST James's Street, 6TH Floor, London, SW1A 1EF
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 23 July 2026
- Previous names
- Sirius Ecodev (Staveley Eggs) Ltd (until 4 Jun 2021)
Ecosirius2 Ltd (until 9 Dec 2020)
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.
- Sitl Construction Ltd2020
- Siyari Limited2025
- Skinner Engineering Ltd2012
- Skyline Edge Limited2024
- Sladholdings Limited2016
- Slawomir Cucura Steel Works Limited2015
- Slogistics Limited2014
- SM Civils Ltd2026
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Sirius Ecodev (Vause) Ltd's accounts due?
Sirius Ecodev (Vause) Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Sirius Ecodev (Vause) Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Sirius Ecodev (Vause) Ltd still trading?
Sirius Ecodev (Vause) 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 Sirius Ecodev (Vause) Ltd do?
Sirius Ecodev (Vause) Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sirius Ecodev (Vause) Ltd?
Sirius Ecodev (Vause) Ltd was incorporated on 24 July 2019, 7 years ago.
What is the penalty if Sirius Ecodev (Vause) 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 Sirius Ecodev (Vause) 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.