- Company number
- 16018059
- Incorporated
- 15 Oct 20241 year trading
- Registered office
- Unit 9/ 101A, Clapham High Street, London, SW4 7TB
- Nature of business
- Construction of domestic buildings
Clapham Construction Ltd is a 1-year-old private limited company registered in London, company number 16018059, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Clapham Construction Ltd is registered
The registered office is in London (SW4), in the Lambeth local authority area, London. Show SW4 7TB on a map.
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What happens if Clapham Construction 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16018059
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 October 2024 (1 year ago)
- Registered office
- Unit 9/ 101A, Clapham High Street, London, SW4 7TB
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 14 October 2025
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 London
Other active building contractors registered in London.
- Clarendon Co Professional Services Ltd2025
- Clarendon Gate Limited1983
- Clarkemaintenanceco Ltd2025
- Clarks Cabins Ltd2021
- Claryon Group Ltd2025
- Classic Security & Facilities Management Limited2026
- Claudina Property Ltd2018
- Claudio Construction Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Clapham Construction Ltd's accounts due?
Clapham Construction Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Clapham Construction Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Clapham Construction Ltd still trading?
Clapham Construction 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 Clapham Construction Ltd do?
Clapham Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Clapham Construction Ltd?
Clapham Construction Ltd was incorporated on 15 October 2024, 1 year ago.
What is the penalty if Clapham Construction 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 Clapham Construction 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.