- Companies
- Civil engineering
- London
- O'Reilly & O'Reilly Ltd
O'Reilly & O'Reilly Ltd
- Company number
- 13876016
- Incorporated
- 27 Jan 20224 years trading
- Registered office
- 24A Sydenham Road, London, SE26 5QW
- Nature of business
- Construction of other civil engineering projects n.e.c.
O'Reilly & O'Reilly Ltd is a 4-year-old private limited company registered in London, company number 13876016, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 up £420 (+159.7%) on the year before, to £683.
- Current assets of £2,479 against £5,846 owed within a year: 0.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £683 | £2,479 | £5,846 | 1 | |
| 31 Jan 2024 | £263 | £46 | £4,845 | 1 | |
| 31 Jan 2023 | £1 |
Who runs and owns O'Reilly & O'Reilly Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| D*** O*** | Director | Jan 2022 |
Person with significant control
Where O'Reilly & O'Reilly Ltd is registered
The registered office is in London (SE26), in the Lewisham local authority area, London. Show SE26 5QW on a map.
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Also registered at this address
6 other companies use the same registered office as O'Reilly & O'Reilly Ltd.
- Addasset Build LimitedProperty developers
- BW Floor & Wall Tiling Service LtdFloor and wall tilers
- Coppock Building Services LtdProperty developers
- Coy Interiors LtdProperty developers
- Double R Plumbing & Gas Services LimitedPlumbers and heating engineers
- JMD Interiors LtdProperty developers
What happens if O'Reilly & O'Reilly 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13876016
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 January 2022 (4 years ago)
- Registered office
- 24A Sydenham Road, London, SE26 5QW
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 26 January 2026
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.
- O. Jibowu Limited2018
- Oak Paving Limited2014
- Oakwood Construction 2016 Limited2016
- Ocean Pride Limited2018
- Oculus Planning & Consulting Limited2023
- Odessa82 Ltd2023
- Office Flow Management Ltd2024
- Og Plumbing & Drainage Ltd2026
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are O'Reilly & O'Reilly Ltd's accounts due?
O'Reilly & O'Reilly Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is O'Reilly & O'Reilly Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is O'Reilly & O'Reilly Ltd still trading?
O'Reilly & O'Reilly 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 O'Reilly & O'Reilly Ltd do?
O'Reilly & O'Reilly Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is O'Reilly & O'Reilly Ltd?
O'Reilly & O'Reilly Ltd was incorporated on 27 January 2022, 4 years ago.
Who runs O'Reilly & O'Reilly Ltd?
O'Reilly & O'Reilly Ltd has 1 active director, the longest-serving appointed in Jan 2022. Their names and service addresses are on the Companies House register.
Who owns O'Reilly & O'Reilly Ltd?
One person or company has significant control of O'Reilly & O'Reilly Ltd: an individual (has significant influence or control).
What is the penalty if O'Reilly & O'Reilly 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 O'Reilly & O'Reilly 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.