- Companies
- Civil engineering
- London
- Acs Building Ltd
Acs Building Ltd
- Company number
- 14800999
- Incorporated
- 14 Apr 20233 years trading
- Registered office
- 44 Dawlish Avenue, London, N13 4HP
- Nature of business
- Construction of other civil engineering projects n.e.c.
Acs Building Ltd is a 3-year-old private limited company registered in London, company number 14800999, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £1,236 (+86.1%) on the year before, to £2,672.
- Current assets of £14K against £12K owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £2,672 | £14K | £12K | 2 | |
| 30 Apr 2024 | £1,436 | £16K | £15K | 2 |
Where Acs Building Ltd is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 4HP on a map.
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Also registered at this address
1 other company uses the same registered office as Acs Building Ltd.
What happens if Acs Building 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 14800999
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 April 2023 (3 years ago)
- Registered office
- 44 Dawlish Avenue, London, N13 4HP
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 8 April 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.
- Acyd Group Ltd2023
- Ad Construction & Groundwork Ltd2020
- Adapol Ltd2019
- Adaptive Infra Ltd2025
- Adc Rail Limited2018
- Adcivils Ltd2026
- Addo Enterprises Ltd2025
- Ade's Group Limited2019
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Acs Building Ltd's accounts due?
Acs Building Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Acs Building Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Acs Building Ltd still trading?
Acs Building 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 Acs Building Ltd do?
Acs Building Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Acs Building Ltd?
Acs Building Ltd was incorporated on 14 April 2023, 3 years ago.
What is the penalty if Acs Building 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 Acs Building 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.