- Companies
- Installers
- Llanelli
- Clay Construction Limited
Clay Construction Limited
- Company number
- 14423979
- Incorporated
- 17 Oct 20223 years trading
- Registered office
- 45 Heol Y Pentre, Ponthenry, Llanelli, SA15 5PY
- Nature of business
- Other construction installation
Clay Construction Limited is a 3-year-old private limited company registered in Llanelli, company number 14423979, one of 14 installation companies (insulation, lifts, shutters and similar) in Llanelli. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 down £1,715 (-3.4%) on the year before, to £49K.
- Current assets of £5,479 against £35K owed within a year: 0.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2023 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £49K | £5,479 | £35K | 1 | |
| 31 Oct 2023 | £51K | £28K | £23K | 1 |
Where Clay Construction Limited is registered
The registered office is in Llanelli (SA15), in the Carmarthenshire local authority area, Wales. Show SA15 5PY on a map.
Other trade companies in SA15
- Annesley Street (Llanelli) LtdProperty developers
- A&J Landscapes and Property Maintenance LimitedLandscapers and gardeners
- A.C Electrics Llanelli LtdElectricians
- Blue Lagoon Paving & Patios LtdLandscapers and gardeners
- Gwyn Towns Installations LtdInstallers
- Ozma Developments LtdProperty developers
- Swansea Mobile Boat Engineers LtdMachinery repair and installation
- South Wales Bathrooms and Heating LtdPlumbers and heating engineers
What happens if Clay Construction 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 14423979
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2022 (3 years ago)
- Registered office
- 45 Heol Y Pentre, Ponthenry, Llanelli, SA15 5PY
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 16 October 2025
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Llanelli
Other active installation companies (insulation, lifts, shutters and similar) registered in Llanelli.
- Ecotherm Installations Ltd2025
- FFLÊR Limited2017
- Gower Tarmac Ltd2025
- Gwyn Towns Installations Ltd2026
- JP Bathroom Services Ltd2026
- Mark Howard Limited2003
- Mentrus Truss & Joist Ltd2019
- Modular Integrated Systems Ltd2019
All installation companies (insulation, lifts, shutters and similar) in Llanelli · All trades in Llanelli · Installers across the UK
Frequently asked questions
When are Clay Construction Limited's accounts due?
Clay Construction Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Clay Construction 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 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Clay Construction Limited still trading?
Clay Construction 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 Clay Construction Limited do?
Clay Construction Limited is registered under Other construction installation (SIC 43290).
How old is Clay Construction Limited?
Clay Construction Limited was incorporated on 17 October 2022, 3 years ago.
What is the penalty if Clay Construction 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 Clay Construction 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.