Company profile · Builders
McOnstruction Group Ltd
McOnstruction Group Ltd is a newly incorporated private limited company registered in London, company number 17399766, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 13 May 2028, and its first CT600 is due at HMRC on 12 August 2028.
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 McOnstruction Group Ltd is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 0JR on a map.
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What happens if McOnstruction Group 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 13 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 May 2028 to 13 Jun 2028 | £150 |
| 1 to 3 months late | 14 Jun 2028 to 13 Aug 2028 | £375 |
| 3 to 6 months late | 14 Aug 2028 to 13 Nov 2028 | £750 |
| More than 6 months late | From 14 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 17399766
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 2026
- Registered office
- 302 North Circular Road, London, NW10 0JR
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- MCP Construction and Plant Fire Ltd2026
- McRo Construction Ltd2025
- MCS Eagle Construction Ltd2025
- MCV Construction Limited2023
- McVicker Building Services (UK) Ltd2009
- MD Build Ltd2023
- MD Clay Hill Ltd2025
- MD Construct Ltd2018
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are McOnstruction Group Ltd's accounts due?
McOnstruction Group Ltd's next accounts are due at Companies House by 13 May 2028 (in 579 days), covering the period to 31 August 2027.
When is McOnstruction Group Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 12 August 2027, due by 12 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is McOnstruction Group Ltd still trading?
McOnstruction Group 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 McOnstruction Group Ltd do?
McOnstruction Group Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is McOnstruction Group Ltd?
McOnstruction Group Ltd was incorporated on 13 August 2026, less than a year ago.
What is the penalty if McOnstruction Group 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 McOnstruction Group 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.