- Companies
- Civil engineering
- Stoke-on-Trent
- C Knapper Groundworks Limited
C Knapper Groundworks Limited
- Company number
- 11312492
- Incorporated
- 16 Apr 20188 years trading
- Registered office
- 10 Carmount Road, Stoke-on-Trent, ST2 8DG
- Nature of business
- Construction of other civil engineering projects n.e.c.
C Knapper Groundworks Limited is a 8-year-old private limited company registered in Stoke-on-Trent, company number 11312492, one of 73 civil engineering contractors in Stoke-on-Trent. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 rose in 3 of 6 year-on-year comparisons on record.
- 1 employee on average, down from 2 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2026 | 1 | ||||
| 31 Mar 2025 | £5,896 | £15 | £10K | £4,268 | 2 |
| 31 Mar 2024 | £7,002 | £851 | £11K | £4,174 | 2 |
| 31 Mar 2023 | £5,645 | £16 | £12K | £6,043 | 2 |
| 31 Mar 2022 | £6,149 | £8 | £13K | £6,472 | 2 |
| 31 Mar 2021 | £4,479 | £7 | £12K | £7,335 | 2 |
| 31 Mar 2020 | £3,021 | £9,930 | £6,909 | 2 | |
| 31 Mar 2019 | £5,888 | £20 | £9,738 | £3,850 | 2 |
Where C Knapper Groundworks Limited is registered
The registered office is in Stoke-on-Trent (ST2), in the Stoke-on-Trent local authority area, West Midlands. Show ST2 8DG on a map.
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- LW Heating Services LimitedPlumbers and heating engineers
- Briand Civil Engineering LtdBuilders
- The Goat Heating & Plumbing LtdPlumbers and heating engineers
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What happens if C Knapper Groundworks Limited 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11312492
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 April 2018 (8 years ago)
- Registered office
- 10 Carmount Road, Stoke-on-Trent, ST2 8DG
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 2 April 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 Stoke-on-Trent
Other active civil engineering contractors registered in Stoke-on-Trent.
- C.Turk Services Ltd2023
- Carnell Utilities Ltd2024
- CLC Professional Contracts Ltd2014
- D J B Installation Services Limited2018
- David Leech & Sons Limited2009
- Duratech Engineering Services Ltd2026
- Flo Utilities Limited2024
- Future Driveways and Patios Ltd2025
All civil engineering contractors in Stoke-on-Trent · All trades in Stoke-on-Trent · Civil engineering across the UK
Frequently asked questions
When are C Knapper Groundworks Limited's accounts due?
C Knapper Groundworks Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is C Knapper Groundworks Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is C Knapper Groundworks Limited still trading?
C Knapper Groundworks Limited 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 C Knapper Groundworks Limited do?
C Knapper Groundworks Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is C Knapper Groundworks Limited?
C Knapper Groundworks Limited was incorporated on 16 April 2018, 8 years ago.
What is the penalty if C Knapper Groundworks Limited 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 C Knapper Groundworks Limited 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.