- Companies
- Civil engineering
- London
- Se-Safesystems Ltd
Se-Safesystems Ltd
- Company number
- 11403529
- Incorporated
- 7 Jun 20188 years trading
- Registered office
- 46, Combwell Crescent, Abbey Wood, London, SE2 9LZ
- Nature of business
- Construction of railways and underground railways
Se-Safesystems Ltd is a 8-year-old private limited company registered in London, company number 11403529, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Se-Safesystems LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 down £26 (-1.7%) on the year before, to £1,469.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £1,469 | £1,469 | £0 | 1 | |
| 30 Jun 2025 | £1,495 | £4,601 | £306 | 1 | |
| 30 Jun 2024 | £2,190 | £7,044 | £7,044 | £554 | 1 |
| 30 Jun 2023 | £4,828 | £7,076 | £12K | £1,248 | 1 |
| 30 Jun 2022 | -£493 | £6,430 | £573 | 1 | |
| 30 Jun 2021 | -£935 | £7,504 | £439 | 1 | |
| 30 Jun 2020 | £2,805 | £6,157 | £2,242 | 0 | |
| 30 Jun 2019 | £599 | £175 |
Where Se-Safesystems Ltd is registered
The registered office is in London (SE2), in the Greenwich local authority area, London. Show SE2 9LZ on a map.
Other trade companies in SE2
- Savannah Konstruct LimitedBuilders
- LN&L Cleaning LtdCleaning companies
- Rappy Handyman Services LimitedRepair services
- GNB Construction LtdBuilders
- Southern Elevators LtdBuilders
- Aml Plumbing Services LtdPlumbers and heating engineers
- Feather House LtdBuilders
- Aoh Fresh Space LimitedCleaning companies
What happens if Se-Safesystems 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11403529
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 June 2018 (8 years ago)
- Registered office
- 46, Combwell Crescent, Abbey Wood, London, SE2 9LZ
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 6 June 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.
- Seal Groundworks Ltd2026
- Sealand Partners Limited2012
- Sebelli Ltd2019
- Segunmic Private Compay Limited2026
- Sehmi & Sons (Builder Merchants) Limited2009
- Selina Rail Ltd2025
- Sence International Trade Ltd2020
- Sergiu Fasttrack Excavation Ltd2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Se-Safesystems Ltd's accounts due?
Se-Safesystems Ltd's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is Se-Safesystems Ltd's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is Se-Safesystems Ltd still trading?
Se-Safesystems 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 Se-Safesystems Ltd do?
Se-Safesystems Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Se-Safesystems Ltd?
Se-Safesystems Ltd was incorporated on 7 June 2018, 8 years ago.
What is the penalty if Se-Safesystems 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 Se-Safesystems 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.