- Company number
- 16133235
- Incorporated
- 12 Dec 20241 year trading
- Registered office
- 29 York Street, London, W1H 1EZ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
South Cornwall Construction Services Limited is a 1-year-old private limited company registered in London, company number 16133235, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 8 December 2026, and the CT600 for the period to 30 September 2025 is due at HMRC on 30 September 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 South Cornwall Construction Services Limited is registered
The registered office is in London (W1H), in the Westminster local authority area, London. Show W1H 1EZ on a map.
Other trade companies in W1H
- Goodwill Development LimitedProperty developers
- Fibrespan London LimitedProperty developers
- Veniche London LtdFinishing trades
- Livluv LimitedProperty developers
- Anaut UK LtdMachinery repair and installation
- Orttewell LimitedProperty developers
- Creechurch London LimitedProperty developers
- Well Future Trading LtdMotor traders
Shared registered office
39 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 South Cornwall Construction Services 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 8 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Dec 2026 to 8 Jan 2027 | £150 |
| 1 to 3 months late | 9 Jan 2027 to 8 Mar 2027 | £375 |
| 3 to 6 months late | 9 Mar 2027 to 8 Jun 2027 | £750 |
| More than 6 months late | From 9 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2026 | £200 |
| 3 months late | 30 Dec 2026 | another £200 |
| 6 months late | 30 Mar 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16133235
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2024 (1 year ago)
- Registered office
- 29 York Street, London, W1H 1EZ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 11 December 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.
- South East Builders Ltd2026
- South Kent Interiors Ltd2021
- South London Conversions Ltd2014
- South London Renovations Ltd2013
- South Somerset Cans Ltd2025
- South West Construction Ltd2015
- South West Maintenance Group Ltd2026
- South West Works Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are South Cornwall Construction Services Limited's accounts due?
South Cornwall Construction Services Limited's next accounts are due at Companies House by 8 December 2026 (in 56 days), covering the period to 30 September 2025.
When is South Cornwall Construction Services Limited's CT600 due?
The CT600 for the period to 30 September 2025 is due at HMRC by 30 September 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2026.
Is South Cornwall Construction Services Limited still trading?
South Cornwall Construction Services 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 South Cornwall Construction Services Limited do?
South Cornwall Construction Services Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is South Cornwall Construction Services Limited?
South Cornwall Construction Services Limited was incorporated on 12 December 2024, 1 year ago.
What is the penalty if South Cornwall Construction Services 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 South Cornwall Construction Services 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.