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- Construction-C1 Ltd
Company profile · Builders
Construction-C1 Ltd
Construction-C1 Ltd is a 1-year-old private limited company registered in Milton Keynes, company number 16235528, one of 358 building contractors in Milton Keynes. 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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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Where Construction-C1 Ltd is registered
The registered office is in Milton Keynes (MK11), in the Milton Keynes local authority area, South East. Show MK11 1ET on a map.
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What happens if Construction-C1 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 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
- 16235528
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 February 2025 (1 year ago)
- Registered office
- 37 the Limes, Stony Stratford, Milton Keynes, MK11 1ET
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 5 February 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Milton Keynes
Other active building contractors registered in Milton Keynes.
- Corepro Build Ltd2018
- Costy Grecu Ltd2025
- Crestline Builders Ltd2024
- Cruser Ltd2018
- Crystal Brick Limited2020
- Cullmc & Sons Construction Ltd2026
- Custom Glaze (MK) Limited2018
- D G S Construction Limited1997
All building contractors in Milton Keynes · All trades in Milton Keynes · Builders across the UK
Frequently asked questions
When are Construction-C1 Ltd's accounts due?
Construction-C1 Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Construction-C1 Ltd'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 Construction-C1 Ltd still trading?
Construction-C1 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 Construction-C1 Ltd do?
Construction-C1 Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Construction-C1 Ltd?
Construction-C1 Ltd was incorporated on 6 February 2025, 1 year ago.
What is the penalty if Construction-C1 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 Construction-C1 Ltd on Companies House for filed documents, officers and the full history.
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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.