- Companies
- Civil engineering
- Huddersfield
- Ariadni Consultants Ltd
Ariadni Consultants Ltd
- Company number
- 14950314
- Incorporated
- 21 Jun 20233 years trading
- Registered office
- 3 M Buckley Innovation Centre, Firth Street, Huddersfield, HD1 3BD
- Nature of business
- Construction of other civil engineering projects n.e.c.; Engineering related scientific and technical consulting activities; Environmental consulting activities; General medical practice activities
Ariadni Consultants Ltd is a 3-year-old private limited company registered in Huddersfield, company number 14950314, one of 58 civil engineering contractors in Huddersfield. Companies House shows its accounts as overdue: they were due on 31 March 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Ariadni Consultants Ltd is registered
The registered office is in Huddersfield (HD1), in the Kirklees local authority area, Yorkshire and The Humber. Show HD1 3BD on a map.
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What happens if Ariadni Consultants Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2026 to 30 Apr 2026 | £150 |
| 1 to 3 months late | 1 May 2026 to 30 Jun 2026 | £375 |
| 3 to 6 months late | 1 Jul 2026 to 30 Sep 2026 | £750 |
| More than 6 months late | From 1 Oct 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2026 | £200 |
| 3 months late | 30 Sep 2026 | another £200 |
| 6 months late | 30 Dec 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2027 | 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
- 14950314
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 June 2023 (3 years ago)
- Registered office
- 3 M Buckley Innovation Centre, Firth Street, Huddersfield, HD1 3BD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Engineering related scientific and technical consulting activities (SIC 71122)
Environmental consulting activities (SIC 74901)
General medical practice activities (SIC 86210) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2024
- Last confirmation statement
- 20 June 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 Huddersfield
Other active civil engineering contractors registered in Huddersfield.
- Asoss Civil Engineering Limited2025
- B Duffy Civil Engineering Ltd2019
- C N S Management Services Ltd2006
- C. Connelly Ltd2009
- Coleman Cost Services Limited2023
- Colne Vale Contractors Limited2012
- Colne Valley Property Services Ltd2009
- Concrete Operations Services Ltd2023
All civil engineering contractors in Huddersfield · All trades in Huddersfield · Civil engineering across the UK
Frequently asked questions
When are Ariadni Consultants Ltd's accounts due?
Ariadni Consultants Ltd's accounts were due at Companies House on 31 March 2026 and the register shows them as overdue.
When is Ariadni Consultants Ltd's CT600 due?
The CT600 for the period to 30 June 2025 is due at HMRC by 30 June 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2026.
Is Ariadni Consultants Ltd still trading?
Ariadni Consultants Ltd 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 Ariadni Consultants Ltd do?
Ariadni Consultants Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Engineering related scientific and technical consulting activities (SIC 71122); Environmental consulting activities (SIC 74901); General medical practice activities (SIC 86210).
How old is Ariadni Consultants Ltd?
Ariadni Consultants Ltd was incorporated on 21 June 2023, 3 years ago.
What is the penalty if Ariadni Consultants 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 Ariadni Consultants Ltd 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.