- Company number
- 15864727
- Incorporated
- 30 Jul 20242 years trading
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Construction of other civil engineering projects n.e.c.
London Formwork and Groundworks Ltd is a 2-year-old private limited company registered in London, company number 15864727, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 October 2026, and the CT600 for the period to 29 July 2025 is due at HMRC on 29 July 2026.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where London Formwork and Groundworks Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
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- Magic Door Services LimitedMachinery repair and installation
Shared registered office
1,583 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 London Formwork and Groundworks 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 30 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Oct 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 30 Jan 2027 | £375 |
| 3 to 6 months late | 31 Jan 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jul 2026 | £200 |
| 3 months late | 29 Oct 2026 | another £200 |
| 6 months late | 29 Jan 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jul 2027 | 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
- 15864727
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 July 2024 (2 years ago)
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 29 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 31 July 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 London
Other active building contractors registered in London.
- London Glass Studio Ltd2018
- London Gold Building Ltd2020
- London Green (Basildon) Limited2016
- London Green (Chelmsford) Ltd2015
- London Green Construction Limited2025
- London Heritage Construction Limited2023
- London Heritage Offsite Limited2020
- London Heritage Partnerships Limited2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are London Formwork and Groundworks Ltd's accounts due?
London Formwork and Groundworks Ltd's next accounts are due at Companies House by 30 October 2026 (in 16 days), covering the period to 29 July 2025.
When is London Formwork and Groundworks Ltd's CT600 due?
The CT600 for the period to 29 July 2025 is due at HMRC by 29 July 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 30 April 2026.
Is London Formwork and Groundworks Ltd still trading?
London Formwork and Groundworks 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 London Formwork and Groundworks Ltd do?
London Formwork and Groundworks Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is London Formwork and Groundworks Ltd?
London Formwork and Groundworks Ltd was incorporated on 30 July 2024, 2 years ago.
What is the penalty if London Formwork and Groundworks 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 London Formwork and Groundworks 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.