- Companies
- Civil engineering
- Blackburn
- A1Civils Limited
A1Civils Limited
- Company number
- 09270986
- Incorporated
- 20 Oct 201411 years trading
- Registered office
- 7 Arran Avenue, Blackburn, BB1 2EU
- Nature of business
- Construction of roads and motorways; Construction of bridges and tunnels; Construction of water projects; Construction of other civil engineering projects n.e.c.
A1Civils Limited is a 11-year-old private limited company registered in Blackburn, company number 09270986, one of 31 civil engineering contractors in Blackburn. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 unchanged on the year before, at -£4,028.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £3,075 against £8,680 owed within a year: 0.4 times cover.
- 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 |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£4,028 | £3,075 | £8,680 | 1 | |
| 31 Oct 2024 | -£4,028 | £3,075 | £8,680 | 1 | |
| 31 Oct 2023 | -£4,028 | £3,075 | £8,680 | 1 | |
| 31 Oct 2022 | £2,195 | £3,075 | 1 | ||
| 31 Oct 2021 | £3,311 | £2,024 | £5,739 | 1 | |
| 31 Oct 2020 | £141 | £9,831 | £22K | 1 | |
| 31 Oct 2019 | £1,688 | £8,214 | £20K | 1 | |
| 31 Oct 2018 | £4,537 | £8,214 | £22K | ||
| 31 Oct 2017 | £431 | £8,214 | £7,870 | ||
| 31 Oct 2016 | £801 | £5,507 | £4,881 |
Who runs and owns A1Civils Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| W*** D*** | Director | Oct 2014 |
Person with significant control
Where A1Civils Limited is registered
The registered office is in Blackburn (BB1), in the Blackburn with Darwen local authority area, North West. Show BB1 2EU on a map.
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What happens if A1Civils 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 09270986
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2014 (11 years ago)
- Registered office
- 7 Arran Avenue, Blackburn, BB1 2EU
- Nature of business
- Construction of roads and motorways (SIC 42110)
Construction of bridges and tunnels (SIC 42130)
Construction of water projects (SIC 42910)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 20 October 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 Blackburn
Other active civil engineering contractors registered in Blackburn.
- Afa Civil Limited2025
- Afa Telecoms Limited2025
- Ajw Civils Ltd2024
- Aspin & Coonan Limited2002
- Barton Contractors (NW) Ltd2008
- BGR Surfacing Ltd2017
- Chris Catterall Ltd2014
- Civicore Networks Ltd2025
All civil engineering contractors in Blackburn · All trades in Blackburn · Civil engineering across the UK
Frequently asked questions
When are A1Civils Limited's accounts due?
A1Civils Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is A1Civils Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is A1Civils Limited still trading?
A1Civils 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 A1Civils Limited do?
A1Civils Limited is registered under Construction of roads and motorways (SIC 42110); Construction of bridges and tunnels (SIC 42130); Construction of water projects (SIC 42910); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is A1Civils Limited?
A1Civils Limited was incorporated on 20 October 2014, 11 years ago.
Who runs A1Civils Limited?
A1Civils Limited has 1 active director, the longest-serving appointed in Oct 2014. Their names and service addresses are on the Companies House register.
Who owns A1Civils Limited?
One person or company has significant control of A1Civils Limited: an individual (owns 75% or more of the shares).
What is the penalty if A1Civils 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 A1Civils 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.