- Companies
- Groundworks and demolition
- Swansea
- Maerdy Plant Limited
Maerdy Plant Limited
- Company number
- 05331946
- Incorporated
- 13 Jan 200521 years trading
- Registered office
- 66 Brynbrain Road, Cwmllynfell, Swansea, SA9 2WJ
- Nature of business
- Site preparation
Maerdy Plant Limited is a 21-year-old private limited company registered in Swansea, company number 05331946, one of 15 groundworks and demolition companies in Swansea. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
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 £92K (-183.6%) on the year before, to -£42K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £36K against £1,843 owed within a year: more than 10 times cover.
- 2 employees on average, up from 0 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | -£42K | £36K | £1,843 | 2 | |
| 31 May 2025 | £50K | £28K | £2,991 | 0 | |
| 31 May 2024 | £66K | £48K | £8,483 | 0 | |
| 31 May 2023 | £104K | £39K | £17K | 0 | |
| 31 May 2022 | £120K | £17K | £18K | 0 | |
| 31 May 2021 | £108K | £26K | £23K | 0 | |
| 31 May 2020 | £117K | £6,163 | £27K | 0 | |
| 31 May 2019 | £103K | £11K | £27K | ||
| 31 May 2018 | £95K | £6,091 | £20K | ||
| 31 May 2017 | -£87K | £5,601 | £24K |
Where Maerdy Plant Limited is registered
The registered office is in Swansea (SA9), in the Carmarthenshire local authority area, Wales. Show SA9 2WJ on a map.
Other trade companies in SA9
- Eidolon Renovations LtdPlumbers and heating engineers
- Michael Jones Renovations LtdProperty developers
- Cyfyng Road Developments LtdFinishing trades
- Orwell’S Accident Repair LtdMechanics and garages
- WLM Car and Commercial Services LtdMotor traders
- Tom Graham Maintenance LtdFinishing trades
- Precious Time Cleaning Solutions LtdCleaning companies
- TD Heating Solutions LtdPlumbers and heating engineers
What happens if Maerdy Plant 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 05331946
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2005 (21 years ago)
- Registered office
- 66 Brynbrain Road, Cwmllynfell, Swansea, SA9 2WJ
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 10 January 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Swansea
Other active groundworks and demolition companies registered in Swansea.
- Oaktree Construction (Wales) Limited2008
- R Hills Construction Ltd2018
- Safe Recycling Limited2023
- Super Trench Direct Limited2023
- Tectonics Drilling Services Ltd2014
- Algar Groundworks Limited2015
- Atlas Geotechnics Limited2020
- Blue Rock Demolition Ltd2019
All groundworks and demolition companies in Swansea · All trades in Swansea · Groundworks and demolition across the UK
Frequently asked questions
When are Maerdy Plant Limited's accounts due?
Maerdy Plant Limited's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is Maerdy Plant Limited's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Maerdy Plant Limited still trading?
Maerdy Plant 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 Maerdy Plant Limited do?
Maerdy Plant Limited is registered under Site preparation (SIC 43120).
How old is Maerdy Plant Limited?
Maerdy Plant Limited was incorporated on 13 January 2005, 21 years ago.
What is the penalty if Maerdy Plant 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 Maerdy Plant 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.