- Companies
- Civil engineering
- London
- J Addy Engineering Limited
J Addy Engineering Limited
- Company number
- 16346049
- Incorporated
- 26 Mar 20251 year trading
- Registered office
- 54 Albert Road, London, SE20 7JW
- Nature of business
- Construction of other civil engineering projects n.e.c.
J Addy Engineering Limited is a 1-year-old private limited company registered in London, company number 16346049, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 26 December 2026, and its first CT600 is due at HMRC on 25 March 2027.
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 J Addy Engineering Limited is registered
The registered office is in London (SE20), in the Bromley local authority area, London. Show SE20 7JW on a map.
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What happens if J Addy Engineering 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 26 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Dec 2026 to 26 Jan 2027 | £150 |
| 1 to 3 months late | 27 Jan 2027 to 26 Mar 2027 | £375 |
| 3 to 6 months late | 27 Mar 2027 to 26 Jun 2027 | £750 |
| More than 6 months late | From 27 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16346049
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 March 2025 (1 year ago)
- Registered office
- 54 Albert Road, London, SE20 7JW
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 25 March 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.
- J E Reinstatement Ltd2026
- J F Property Maintenance Limited2006
- J Miles Ev Solutions Ltd2023
- J Track Ltd2025
- J&J Construction Europe Ltd2022
- J. Murphy & Sons (Apac Holdings) Limited2025
- J.C. Construct Ltd2019
- J.Fembeh Limited2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are J Addy Engineering Limited's accounts due?
J Addy Engineering Limited's next accounts are due at Companies House by 26 December 2026 (in 75 days), covering the period to 31 March 2026.
When is J Addy Engineering Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 25 March 2026, due by 25 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is J Addy Engineering Limited still trading?
J Addy Engineering 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 J Addy Engineering Limited do?
J Addy Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is J Addy Engineering Limited?
J Addy Engineering Limited was incorporated on 26 March 2025, 1 year ago.
What is the penalty if J Addy Engineering 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 J Addy Engineering 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.