- Companies
- Civil engineering
- London
- M. Conneely Engineering Services Ltd
M. Conneely Engineering Services Ltd
- Company number
- 04107090
- Incorporated
- 13 Nov 200025 years trading
- Registered office
- 56 Seymour Road, London, N8 0BE
- Nature of business
- Construction of other civil engineering projects n.e.c.
M. Conneely Engineering Services Ltd is a 25-year-old private limited company registered in London, company number 04107090, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 29 August 2027, and the CT600 for the period to 29 November 2026 is due at HMRC on 29 November 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £5,260 (-12.4%) on the year before, to £37K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 29 Nov 2025 | £37K | £21K | £16K | 1 | |
| 29 Nov 2024 | £42K | £22K | £20K | 1 | |
| 30 Nov 2023 | £22K | £24K | £2,275 | 1 | |
| 30 Nov 2022 | £56K | £56K | £803 | 1 | |
| 30 Nov 2021 | £64K | £64K | £64K | £882 | 1 |
| 30 Nov 2020 | £69K | £72K | £72K | £3,353 | 1 |
| 30 Nov 2019 | £76K | £88K | £96K | £20K | 1 |
| 30 Nov 2018 | £51K | £62K | £73K | £21K | |
| 30 Nov 2017 | £29K | £25K | £36K | £7,723 | |
| 30 Nov 2016 | £18K | £29K | £34K | £16K |
Where M. Conneely Engineering Services Ltd is registered
The registered office is in London (N8), in the Haringey local authority area, London. Show N8 0BE on a map.
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What happens if M. Conneely Engineering Services 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 29 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Aug 2027 to 29 Sep 2027 | £150 |
| 1 to 3 months late | 30 Sep 2027 to 29 Nov 2027 | £375 |
| 3 to 6 months late | 30 Nov 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Nov 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 29 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Nov 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
- 04107090
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 November 2000 (25 years ago)
- Registered office
- 56 Seymour Road, London, N8 0BE
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 29 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 November 2025
- Last confirmation statement
- 13 November 2025
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.
- M.J. Hernon Engineering Surveys Limited2014
- Maahircabling Ltd2025
- Mabani Limited2022
- Macantile Construct Ltd2026
- Machope Projects Ltd2025
- Macmory Ltd2023
- Maco Capital Limited2021
- Mafer Ltd2022
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are M. Conneely Engineering Services Ltd's accounts due?
M. Conneely Engineering Services Ltd's next accounts are due at Companies House by 29 August 2027 (in 321 days), covering the period to 29 November 2026.
When is M. Conneely Engineering Services Ltd's CT600 due?
The CT600 for the period to 29 November 2026 is due at HMRC by 29 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 August 2027.
Is M. Conneely Engineering Services Ltd still trading?
M. Conneely Engineering Services 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 M. Conneely Engineering Services Ltd do?
M. Conneely Engineering Services Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is M. Conneely Engineering Services Ltd?
M. Conneely Engineering Services Ltd was incorporated on 13 November 2000, 25 years ago.
What is the penalty if M. Conneely Engineering Services 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 M. Conneely Engineering Services 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.