- Company number
- 15917835
- Incorporated
- 27 Aug 20242 years trading
- Registered office
- 7 Bell Yard, London, WC2A 2JR
- Nature of business
- Construction of domestic buildings
CS Construction London Ltd is a 2-year-old private limited company registered in London, company number 15917835, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 August 2025, as filed at Companies House.
Who runs and owns CS Construction London Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| R*** S*** | Director | Aug 2024 |
| C*** C*** | Director | Jun 2025 |
People with significant control (2)
Where CS Construction London Ltd is registered
The registered office is in London (WC2A), in the Westminster local authority area, London. Show WC2A 2JR on a map.
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- Nationwide Roofing & Warranty LimitedBuilders
Shared registered office
221 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 CS Construction London 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15917835
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 August 2024 (2 years ago)
- Registered office
- 7 Bell Yard, London, WC2A 2JR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 8 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.
- CS Holding 2829 Ltd2026
- CS Technical Services Ltd2026
- CSJ Build Ltd2021
- Csky Services Limited2020
- CSS Building Services Ltd2024
- CSST Limited2021
- CST Maintenance Ltd2023
- CSV Contruction Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are CS Construction London Ltd's accounts due?
CS Construction London Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is CS Construction London Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is CS Construction London Ltd still trading?
CS Construction London 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 CS Construction London Ltd do?
CS Construction London Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is CS Construction London Ltd?
CS Construction London Ltd was incorporated on 27 August 2024, 2 years ago.
Who runs CS Construction London Ltd?
CS Construction London Ltd has 2 active directors, the longest-serving appointed in Aug 2024. Their names and service addresses are on the Companies House register.
Who owns CS Construction London Ltd?
2 people or companies have significant control of CS Construction London Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 75% or more of the shares).
What is the penalty if CS Construction London 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 CS Construction London 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.