- Companies
- Builders
- Carmarthen
- Thomas Groundwork’S Limited
Thomas Groundwork’S Limited
- Company number
- 12733736
- Incorporated
- 10 Jul 20206 years trading
- Registered office
- Llys Deri, Parc Pensarn, Carmarthen, Sir Gaerfyrddin, SA31 2NF
- Nature of business
- Construction of domestic buildings
Thomas Groundwork’S Limited is a 6-year-old private limited company registered in Carmarthen, company number 12733736, one of 50 building contractors in Carmarthen. Companies House shows its accounts as overdue: they were due on 30 April 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 £36K (-979.9%) on the year before, to -£32K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £66K against £168K owed within a year: 0.4 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 4 years, 2021 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2024 | -£32K | £66K | £168K | 1 | |
| 31 Jul 2023 | £3,663 | £1,403 | £80K | £169K | 2 |
| 31 Jul 2022 | £14K | £11K | £65K | £123K | 1 |
| 31 Jul 2021 | -£28K | £15K | £67K | £134K | 1 |
Where Thomas Groundwork’S Limited is registered
The registered office is in Carmarthen (SA31), in the Carmarthenshire local authority area, Wales. Show SA31 2NF on a map.
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Also registered at this address
21 other companies use the same registered office as Thomas Groundwork’S Limited.
- Chaps (HPS) Wales LtdPlumbers and heating engineers
- Copefield Construction LimitedCivil engineering
- D Melvyn Rees & Son LtdMechanics and garages
- Dorian Morgan LimitedMechanics and garages
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- Redfield Renovations LtdProperty developers
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- Steel Fabricators (Wales) LtdBuilders
- Time for You West Wales LtdCleaning companies
- Uberwagon LtdMechanics and garages
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What happens if Thomas Groundwork’S Limited files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 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 May 2026 to 31 May 2026 | £150 |
| 1 to 3 months late | 1 Jun 2026 to 31 Jul 2026 | £375 |
| 3 to 6 months late | 1 Aug 2026 to 31 Oct 2026 | £750 |
| More than 6 months late | From 1 Nov 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2026 | £200 |
| 3 months late | 31 Oct 2026 | another £200 |
| 6 months late | 31 Jan 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12733736
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 July 2020 (6 years ago)
- Registered office
- Llys Deri, Parc Pensarn, Carmarthen, Sir Gaerfyrddin, SA31 2NF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2024
- Last confirmation statement
- 9 July 2026
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 Carmarthen
Other active building contractors registered in Carmarthen.
- Tomasz Szymacha Ltd2017
- Uplands Developments Wales Limited2017
- W&E Developments Ltd2016
- Wildman Associates Limited2014
- Wrightway Building Construction Limited2017
- A W Plastering & Building Services Ltd2014
- Aaron Smith Construction Limited2015
- Alun Williams Construction Ltd2003
All building contractors in Carmarthen · All trades in Carmarthen · Builders across the UK
Frequently asked questions
When are Thomas Groundwork’S Limited's accounts due?
Thomas Groundwork’S Limited's accounts were due at Companies House on 30 April 2026 and the register shows them as overdue.
When is Thomas Groundwork’S Limited's CT600 due?
The CT600 for the period to 31 July 2025 is due at HMRC by 31 July 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2026.
Is Thomas Groundwork’S Limited still trading?
Thomas Groundwork’S Limited is listed as active on the Companies House register (checked 12 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 Thomas Groundwork’S Limited do?
Thomas Groundwork’S Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Thomas Groundwork’S Limited?
Thomas Groundwork’S Limited was incorporated on 10 July 2020, 6 years ago.
What is the penalty if Thomas Groundwork’S 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 Thomas Groundwork’S Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.