- Companies
- Civil engineering
- Adenstar Civil Engineering Limited
Adenstar Civil Engineering Limited
- Company number
- 01919937
- Incorporated
- 6 Jun 198541 years trading
- Registered office
- New Sussex House, Fishersgate Terrace, Portslade, Brighton, BN41 1PH
- Nature of business
- Construction of other civil engineering projects n.e.c.
Adenstar Civil Engineering Limited is a 41-year-old private limited company registered in Portslade, company number 01919937, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 27 August 2027, and the CT600 for the period to 27 November 2026 is due at HMRC on 27 November 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 £1,779 (+0.9%) on the year before, to -£205K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £137K against £356K owed within a year: 0.4 times cover.
- 2 employees on average, down from 3 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | -£205K | £137K | £356K | 2 | |
| 30 Nov 2024 | -£207K | £134K | £357K | 3 | |
| 31 May 2023 | -£215K | £204K | £401K | 3 | |
| 31 May 2022 | -£209K | £271K | £398K | 3 | |
| 31 May 2021 | £22K | £591K | £424K | 3 | |
| 31 May 2020 | £1,085 | £652K | £453K | 3 | |
| 31 May 2019 | £274K | £617K | £89K | 3 | |
| 31 May 2018 | £211K | £224K | £59K | 2 | |
| 31 May 2017 | £134K | £14K | £176K | £42K | 2 |
| 31 May 2016 | £8,508 | £11K | £125K | £117K |
Where Adenstar Civil Engineering Limited is registered
The registered office is in Portslade (BN41), in the Adur local authority area, South East. Show BN41 1PH on a map.
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What happens if Adenstar Civil 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 27 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Aug 2027 to 27 Sep 2027 | £150 |
| 1 to 3 months late | 28 Sep 2027 to 27 Nov 2027 | £375 |
| 3 to 6 months late | 28 Nov 2027 to 27 Feb 2028 | £750 |
| More than 6 months late | From 28 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Nov 2027 | £200 |
| 3 months late | 27 Feb 2028 | another £200 |
| 6 months late | 27 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 Nov 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
- 01919937
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 June 1985 (41 years ago)
- Registered office
- New Sussex House, Fishersgate Terrace, Portslade, Brighton, BN41 1PH
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 27 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 16 January 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Kerb-Lay (U.K.) Limited (until 10 Apr 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
Other active civil engineering contractors.
Frequently asked questions
When are Adenstar Civil Engineering Limited's accounts due?
Adenstar Civil Engineering Limited's next accounts are due at Companies House by 27 August 2027 (in 318 days), covering the period to 27 November 2026.
When is Adenstar Civil Engineering Limited's CT600 due?
The CT600 for the period to 27 November 2026 is due at HMRC by 27 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 28 August 2027.
Is Adenstar Civil Engineering Limited still trading?
Adenstar Civil 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 Adenstar Civil Engineering Limited do?
Adenstar Civil Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Adenstar Civil Engineering Limited?
Adenstar Civil Engineering Limited was incorporated on 6 June 1985, 41 years ago.
What is the penalty if Adenstar Civil 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 Adenstar Civil 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.