- Companies
- Civil engineering
- London
- Mitchell McDermott Construction Consultants Ltd
Mitchell McDermott Construction Consultants Ltd
- Company number
- 17151666
- Incorporated
- 11 Apr 2026
- Registered office
- Level 3 Greenwich 222 Bishopgate, Liverpool Street, London, EC2M 4QD
- Nature of business
- Construction of other civil engineering projects n.e.c.
Mitchell McDermott Construction Consultants Ltd is a newly incorporated private limited company registered in London, company number 17151666, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 11 January 2028, and its first CT600 is due at HMRC on 10 April 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.
Is this your company?
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Where Mitchell McDermott Construction Consultants Ltd is registered
The registered office is in London (EC2M), in the City of London local authority area, London. Show EC2M 4QD on a map.
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What happens if Mitchell McDermott Construction Consultants 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 11 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Jan 2028 to 11 Feb 2028 | £150 |
| 1 to 3 months late | 12 Feb 2028 to 11 Apr 2028 | £375 |
| 3 to 6 months late | 12 Apr 2028 to 11 Jul 2028 | £750 |
| More than 6 months late | From 12 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17151666
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 April 2026
- Registered office
- Level 3 Greenwich 222 Bishopgate, Liverpool Street, London, EC2M 4QD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Mivaki Ltd2026
- Mixer Solutions Ltd2026
- MJ Contract Services Ltd2025
- MK Construction & Finishing Ltd2026
- MK General Services Ltd.2018
- MK Geocivils Ltd2026
- Mky Architecture Ltd2020
- MK’S Engineering Ltd2024
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Mitchell McDermott Construction Consultants Ltd's accounts due?
Mitchell McDermott Construction Consultants Ltd's next accounts are due at Companies House by 11 January 2028 (in 455 days), covering the period to 30 April 2027.
When is Mitchell McDermott Construction Consultants 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 10 April 2027, due by 10 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mitchell McDermott Construction Consultants Ltd still trading?
Mitchell McDermott Construction Consultants 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 Mitchell McDermott Construction Consultants Ltd do?
Mitchell McDermott Construction Consultants Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Mitchell McDermott Construction Consultants Ltd?
Mitchell McDermott Construction Consultants Ltd was incorporated on 11 April 2026, less than a year ago.
What is the penalty if Mitchell McDermott Construction Consultants 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 Mitchell McDermott Construction Consultants 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.