- Companies
- Civil engineering
- Hertford
- Aidan McClelland Limited
Aidan McClelland Limited
- Company number
- 03849781
- Incorporated
- 28 Sep 199927 years trading
- Registered office
- 16 the Mead Centre, Mead Lane, Hertford, SG13 7BJ
- Nature of business
- Construction of railways and underground railways
Aidan McClelland Limited is a 27-year-old private limited company registered in Hertford, company number 03849781, one of 16 civil engineering contractors in Hertford. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £34K (+2.7%) on the year before, to £1.3M.
- Current assets of £1.4M against £312K owed within a year: 4.4 times cover.
- Balance sheets on record for 3 years, 2014 to 2016.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2016 | £1.3M | £75K | £1.4M | £312K | |
| 30 Sep 2015 | £1.3M | £106K | £1.4M | £370K | |
| 30 Sep 2014 | £1.2M | £242K | £1.4M | £423K |
Where Aidan McClelland Limited is registered
The registered office is in Hertford (SG13), in the East Hertfordshire local authority area, East of England. Show SG13 7BJ on a map.
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What happens if Aidan McClelland 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 03849781
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 1999 (27 years ago)
- Registered office
- 16 the Mead Centre, Mead Lane, Hertford, SG13 7BJ
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 28 September 2025
- Charges (mortgages)
- 4 outstanding of 4 registered
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 Hertford
Other active civil engineering contractors registered in Hertford.
- Better Utility Services Ltd2026
- Bray C.E Ltd2026
- Dmsldn Ltd2003
- Essex Telecom Solutions Limited2021
- Fortress Security Solutions Ltd2019
- HC Environmental Ltd2021
- J W Fabrications Limited2012
- JF Services & Contracting Ltd2025
All civil engineering contractors in Hertford · All trades in Hertford · Civil engineering across the UK
Frequently asked questions
When are Aidan McClelland Limited's accounts due?
Aidan McClelland Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Aidan McClelland Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Aidan McClelland Limited still trading?
Aidan McClelland Limited is listed as active on the Companies House register (checked 13 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 Aidan McClelland Limited do?
Aidan McClelland Limited is registered under Construction of railways and underground railways (SIC 42120).
How old is Aidan McClelland Limited?
Aidan McClelland Limited was incorporated on 28 September 1999, 27 years ago.
What is the penalty if Aidan McClelland 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 Aidan McClelland Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.