- Companies
- Property developers
- Calne
- C4 Construction Limited
C4 Construction Limited
- Company number
- 11879997
- Incorporated
- 13 Mar 20197 years trading
- Registered office
- 1 Market Hill, Calne, Wiltshire, SN11 0BT
- Nature of business
- Development of building projects; Other building completion and finishing
C4 Construction Limited is a 7-year-old private limited company registered in Calne, company number 11879997, one of 36 property development companies in Calne. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £2,704 (-11.1%) on the year before, to -£27K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £12K against £38K owed within a year: 0.3 times cover.
- 2 employees on average during the year.
- 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 Mar 2025 | -£27K | £7,425 | £12K | £38K | 2 |
| 31 Mar 2024 | -£24K | £282 | £282 | £25K | 2 |
| 31 Mar 2023 | £74 | £3,009 | £1,435 | 2 | |
| 31 Mar 2022 | £5,507 | £9,841 | £2,972 | 1 | |
| 31 Mar 2021 | £3,478 | £6,851 | £1,957 | 1 | |
| 31 Mar 2020 | £735 | £3,015 | £2,352 | 1 |
Where C4 Construction Limited is registered
The registered office is in Calne (SN11), in the Wiltshire local authority area, South West. Show SN11 0BT on a map.
Other trade companies in SN11
- Ionexis LimitedMachinery repair and installation
- B&L Mobile Car Repairs LtdMechanics and garages
- DCH Services (Wilts) LtdPlumbers and heating engineers
- Ezzyfix Auto Solutions LtdMotor traders
- Set Stone Tiling LtdBuilders
- C.D Substructures LtdBuilders
- Ever So Good Home Improvements LtdSpecialist contractors
- Hardy's Smart Repairs LtdMechanics and garages
Shared registered office
50 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if C4 Construction 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11879997
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 March 2019 (7 years ago)
- Registered office
- 1 Market Hill, Calne, Wiltshire, SN11 0BT
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 16 October 2025
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Calne
Other active property development companies registered in Calne.
- Cotswold Developments and Restorations Limited2017
- Crew Developments Ltd2025
- Cush Property Developments Ltd2017
- Dolager Developments Ltd2025
- DW Groundworks & Construction Ltd2018
- Ech Construction Ltd2013
- Furlong Holdings (SW) Ltd2021
- G & M Building Contractors (Calne) Limited2006
All property development companies in Calne · All trades in Calne · Property developers across the UK
Frequently asked questions
When are C4 Construction Limited's accounts due?
C4 Construction Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is C4 Construction Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is C4 Construction Limited still trading?
C4 Construction 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 C4 Construction Limited do?
C4 Construction Limited is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390).
How old is C4 Construction Limited?
C4 Construction Limited was incorporated on 13 March 2019, 7 years ago.
What is the penalty if C4 Construction 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 C4 Construction 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.