- Companies
- Civil engineering
- Mitcham
- Siteng Ltd
Siteng Ltd
- Company number
- 10154774
- Incorporated
- 28 Apr 201610 years trading
- Registered office
- 45 Seymour Road, Mitcham, CR4 4JX
- Nature of business
- Construction of other civil engineering projects n.e.c.; Other information technology service activities; Other education n.e.c.
Siteng Ltd is a 10-year-old private limited company registered in Mitcham, company number 10154774, one of 27 civil engineering contractors in Mitcham. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £167 (+0.7%) on the year before, to £23K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £23K | £15K | £2,567 | 2 | |
| 30 Apr 2024 | £23K | £18K | £3,448 | 2 | |
| 30 Apr 2023 | £3,696 | £11K | £1,259 | 1 | |
| 30 Apr 2022 | £7,467 | £15K | £2,075 | 1 | |
| 30 Apr 2021 | £12K | £30K | £13K | 1 | |
| 30 Apr 2020 | £2,162 | £4,539 | £6,064 | 2 | |
| 30 Apr 2019 | £4,078 | £11K | £7,910 | ||
| 30 Apr 2018 | £377 | £16K | £17K | ||
| 30 Apr 2017 | £6,152 | £18K | £13K |
Where Siteng Ltd is registered
The registered office is in Mitcham (CR4), in the Sutton local authority area, London. Show CR4 4JX on a map.
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- Fixmot LtdMechanics and garages
- MPB Property Care LtdFinishing trades
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- Dgha Construction LtdBuilders
What happens if Siteng 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 10154774
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 April 2016 (10 years ago)
- Registered office
- 45 Seymour Road, Mitcham, CR4 4JX
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Other information technology service activities (SIC 62090)
Other education n.e.c. (SIC 85590) - Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 17 November 2025
- Previous names
- Greg Stepien Ltd (until 25 Sep 2025)
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 Mitcham
Other active civil engineering contractors registered in Mitcham.
- TKJ Energy Ltd2024
- UK & European Construction Ltd1997
- World Business Group Ltd.2020
- Zol10 Works Ltd2025
- A-Z Data Solutions Ltd2018
- Arotechcivils Ltd2021
- Awk Construction Ltd2020
- Bagi Landscaping Ltd2024
All civil engineering contractors in Mitcham · All trades in Mitcham · Civil engineering across the UK
Frequently asked questions
When are Siteng Ltd's accounts due?
Siteng Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Siteng Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Siteng Ltd still trading?
Siteng 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 Siteng Ltd do?
Siteng Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Other information technology service activities (SIC 62090); Other education n.e.c. (SIC 85590).
How old is Siteng Ltd?
Siteng Ltd was incorporated on 28 April 2016, 10 years ago.
What is the penalty if Siteng 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 Siteng 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.