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- Civil engineering
- Sidcup
- Aoc Site Engineering Ltd
Company profile · Civil engineering
Aoc Site Engineering Ltd
Aoc Site Engineering Ltd is a newly incorporated private limited company registered in Sidcup, company number 17050636, one of 63 civil engineering contractors in Sidcup. Its next accounts are due at Companies House on 24 November 2027, and its first CT600 is due at HMRC on 23 February 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 Aoc Site Engineering Ltd is registered
The registered office is in Sidcup (DA15), in the Bexley local authority area, London. Show DA15 7DH on a map.
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Also registered at this address
2 other companies use the same registered office as Aoc Site Engineering Ltd.
- Ge Close Out Services LtdInstallers
- Wilmington New Homes 2 LimitedProperty developers
What happens if Aoc Site Engineering 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 24 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Nov 2027 to 24 Dec 2027 | £150 |
| 1 to 3 months late | 25 Dec 2027 to 24 Feb 2028 | £375 |
| 3 to 6 months late | 25 Feb 2028 to 24 May 2028 | £750 |
| More than 6 months late | From 25 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17050636
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 February 2026
- Registered office
- 5 Central Parade, Station Road, Sidcup, DA15 7DH
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 February (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 Sidcup
Other active civil engineering contractors registered in Sidcup.
- Aonwd Limited2016
- Boleyn Railway Engineering Solutions Limited2016
- Brian Phoebe Limited2024
- Business Operations Solutions Limited2022
- Capital Transport Planning Ltd2017
- Chiltern Delay Analysis Limited2022
- Civicon Ltd2023
- Collins Groundworks Services Limited2025
All civil engineering contractors in Sidcup · All trades in Sidcup · Civil engineering across the UK
Frequently asked questions
When are Aoc Site Engineering Ltd's accounts due?
Aoc Site Engineering Ltd's next accounts are due at Companies House by 24 November 2027 (in 408 days), covering the period to 28 February 2027.
When is Aoc Site Engineering 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 23 February 2027, due by 23 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Aoc Site Engineering Ltd still trading?
Aoc Site Engineering 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 Aoc Site Engineering Ltd do?
Aoc Site Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Aoc Site Engineering Ltd?
Aoc Site Engineering Ltd was incorporated on 24 February 2026, less than a year ago.
What is the penalty if Aoc Site Engineering 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 Aoc Site Engineering 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.