- Companies
- Civil engineering
- Brighton
- Adenstar Projects Limited
Adenstar Projects Limited
- Company number
- 03617268
- Incorporated
- 18 Aug 199828 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 Projects Limited is a 28-year-old private limited company registered in Brighton, company number 03617268, one of 27 civil engineering contractors in Brighton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 28 May 2026 is due at HMRC on 28 May 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 £100.
- Net assets rose in 0 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £100 | £100 | 1 | ||
| 31 May 2025 | £100 | £100 | 1 | ||
| 31 May 2024 | £100 | £100 | 2 | ||
| 31 May 2023 | £100 | £100 | 2 | ||
| 31 May 2022 | £100 | £100 | 2 | ||
| 31 May 2021 | £100 | £100 | 2 | ||
| 31 May 2020 | £100 | £100 | 2 | ||
| 31 May 2019 | £100 | £100 | 2 | ||
| 31 May 2018 | £100 | £100 | |||
| 31 May 2017 | £100 | £100 |
Where Adenstar Projects Limited is registered
The registered office is in Brighton (BN41), in the Adur local authority area, South East. Show BN41 1PH on a map.
Other trade companies in BN41
- Ah Rail and Civils LimitedCivil engineering
- L Berger Properties LtdProperty developers
- Dempseycarpentry LtdBuilders
- Fully Cleaned LimitedCleaning companies
- C&B Home Solutions LtdProperty developers
- Papaya Building LimitedProperty developers
- Maggie’S Maids UK LtdCleaning companies
- GR Prestige Construction LtdBuilders
Also registered at this address
1 other company uses the same registered office as Adenstar Projects Limited.
- Adenstar Developments LimitedCivil engineering
What happens if Adenstar Projects 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 May 2027 | £200 |
| 3 months late | 28 Aug 2027 | another £200 |
| 6 months late | 28 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 May 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
- 03617268
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 August 1998 (28 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
- 28 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 16 January 2026
- Previous names
- Adenstar (Reinforced Concrete) Ltd (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 in Brighton
Other active civil engineering contractors registered in Brighton.
- Ah Rail and Civils Limited2026
- Big Banking Limited2016
- Carrington MGMT Limited2015
- Deanway Properties Limited1980
- Energyhubdevelopments Limited2020
- G.Rhodes Site Services Limited2010
- GD HV Services Limited2025
- GDH Utilities Ltd2026
All civil engineering contractors in Brighton · All trades in Brighton · Civil engineering across the UK
Frequently asked questions
When are Adenstar Projects Limited's accounts due?
Adenstar Projects Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 28 May 2026.
When is Adenstar Projects Limited's CT600 due?
The CT600 for the period to 28 May 2026 is due at HMRC by 28 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Adenstar Projects Limited still trading?
Adenstar Projects 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 Projects Limited do?
Adenstar Projects Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Adenstar Projects Limited?
Adenstar Projects Limited was incorporated on 18 August 1998, 28 years ago.
What is the penalty if Adenstar Projects 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 Projects 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.