Company profile · Builders
Clydach Construction Limited
Clydach Construction Limited is a 27-year-old private limited company registered in Swansea, company number 03701959, one of 204 building contractors in Swansea. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 January 2025, as filed at Companies House.
Clydach Construction Limited over the years
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 £494 (+3.6%) on the year before, to £14K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £153K against £159K owed within a year: 1.0 times cover.
- 9 employees on average, up from 7 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £14K | £153K | £159K | 9 | |
| 31 Jan 2024 | £14K | £101K | £88K | 7 | |
| 31 Jan 2023 | £14K | £105K | £82K | 7 | |
| 31 Jan 2022 | £13K | £157K | £101K | 0 | |
| 31 Jan 2021 | £12K | £24K | £152K | £110K | 14 |
| 31 Jan 2020 | £25K | £4,833 | £117K | £143K | |
| 31 Jan 2019 | £10K | £89K | £122K | ||
| 31 Jan 2018 | -£3,600 | £52K | £82K | ||
| 31 Jan 2017 | -£30K | £34K | £89K | ||
| 31 Jan 2016 | -£25K | -£27K | -£13K | £26K |
Public contracts won
Clydach Construction Limited has 2 public sector contract awards on record, from 2023 to 2026. Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Barcud Shared Services | BSS24005 -Works of Adaptations | Ceiling, not shown | 2 Feb 2026 |
| City & County of Swansea | Framework Agreement for Housing Renewals & Adaptations Framework Lots A1, A2, B & C | Ceiling, not shown | 30 Jan 2023 |
Where Clydach Construction Limited is registered
The registered office is in Swansea (SA6), in the Swansea local authority area, Wales. Show SA6 5BQ on a map.
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- Roofmaster Roofing and Building LtdProperty developers
- Everyday Maintenance Services LtdSpecialist contractors
- M.E Exterior Cleaning LimitedCleaning companies
- Color Harmony LtdPainters and decorators
- RSM Cars LimitedMotor traders
- T&T Roofing & Home Improvements LtdRoofers
What happens if Clydach 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
- 03701959
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 January 1999 (27 years ago)
- Registered office
- 1A Players Industrial Estate, Clydach, Swansea, SA6 5BQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 16 March 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Swansea
Other active building contractors registered in Swansea.
- Cmo Building and Landscaping Ltd2026
- CMT Bricklaying Limited2017
- Coastal-Bay Building Contractor Ltd2026
- Compton Developments Limited1973
- Corey Young Bricklaying Limited2022
- Cotswold Rooms & Wellbeing Ltd2025
- CPS Construction Ltd2021
- Craig Las Group Limited2020
All building contractors in Swansea · All trades in Swansea · Builders across the UK
Frequently asked questions
When are Clydach Construction Limited's accounts due?
Clydach 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 Clydach Construction Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Clydach Construction Limited still trading?
Clydach 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 Clydach Construction Limited do?
Clydach Construction Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Clydach Construction Limited?
Clydach Construction Limited was incorporated on 27 January 1999, 27 years ago.
Has Clydach Construction Limited won public sector contracts?
Yes. Clydach Construction Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from Barcud Shared Services.
What is the penalty if Clydach 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 Clydach 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.