- Companies
- Specialist contractors
- Cardiff
- Gwynt360 Limited
Gwynt360 Limited
- Company number
- 16819278
- Incorporated
- 29 Oct 2025
- Registered office
- Unit F1, South Point Industrial Estate, Foreshore Road, Cardiff, CF10 4SP
- Nature of business
- Other specialised construction activities n.e.c.
Gwynt360 Limited is a newly incorporated private limited company registered in Cardiff, company number 16819278, one of 173 specialist construction companies in Cardiff. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 28 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Gwynt360 Limited is registered
The registered office is in Cardiff (CF10), in the Cardiff local authority area, Wales. Show CF10 4SP on a map.
Other trade companies in CF10
- Hudcon LtdBuilders
- Skyline Pitched and Flat Roofing LtdRoofers
- Eclipse Construction Group LtdPlasterers
- DWR Plumbing LtdPlumbers and heating engineers
- CF Glazing LtdGlaziers
- Regency Construction Group LtdProperty developers
- Qproperty Solutions LimitedFinishing trades
- Express Vehicle Services (Cardiff) LimitedMechanics and garages
Also registered at this address
1 other company uses the same registered office as Gwynt360 Limited.
- (UK) Mae Solutions LimitedSpecialist contractors
What happens if Gwynt360 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 16819278
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 October 2025
- Registered office
- Unit F1, South Point Industrial Estate, Foreshore Road, Cardiff, CF10 4SP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Cardiff
Other active specialist construction companies registered in Cardiff.
- Hammonds Signs Limited2004
- Hennessey Construction Consultancy Ltd2020
- Howe and Jones Limited2020
- Ias Construction & Maintenance Limited2017
- Ikennaji Investment Ltd2019
- Inavision Construction Ltd2024
- Inavision Maintenance Ltd2025
- Infinite Solutions (Cardiff) Limited2019
All specialist construction companies in Cardiff · All trades in Cardiff · Specialist contractors across the UK
Frequently asked questions
When are Gwynt360 Limited's accounts due?
Gwynt360 Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2027.
When is Gwynt360 Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 October 2026, due by 28 October 2027, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Gwynt360 Limited still trading?
Gwynt360 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 Gwynt360 Limited do?
Gwynt360 Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Gwynt360 Limited?
Gwynt360 Limited was incorporated on 29 October 2025, less than a year ago.
What is the penalty if Gwynt360 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 Gwynt360 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.