- Companies
- Groundworks and demolition
- Cardiff
- South Wales Demolition Ltd
South Wales Demolition Ltd
- Company number
- 07451492
- Incorporated
- 25 Nov 201015 years trading
- Registered office
- 11 Castle Avenue, Rumney, Cardiff, CF3 4FT
- Nature of business
- Demolition
South Wales Demolition Ltd is a 15-year-old private limited company registered in Cardiff, company number 07451492, one of 14 groundworks and demolition companies in Cardiff. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
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 unchanged on the year before, at £6,434.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £875 against £8,232 owed within a year: 0.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £6,434 | £875 | £8,232 | 0 | |
| 30 Apr 2024 | £6,434 | £875 | £8,232 | 0 | |
| 30 Apr 2023 | £6,434 | £875 | £8,232 | 0 | |
| 30 Apr 2021 | £12K | £5,696 | £23K | 1 | |
| 30 Apr 2020 | -£13K | £2,814 | 0 | ||
| 30 Apr 2019 | £11K | £11K | £34K | ||
| 30 Apr 2018 | -£9,235 | £13K | £38K | ||
| 30 Apr 2017 | -£27K | £1,769 | £30K | ||
| 30 Apr 2016 | -£28K | £3,077 | |||
| 30 Apr 2015 | -£25K | £5,944 | £4,209 |
Where South Wales Demolition Ltd is registered
The registered office is in Cardiff (CF3), in the Cardiff local authority area, Wales. Show CF3 4FT on a map.
Other trade companies in CF3
- Ions Trade & Projects LtdInstallers
- Fly Tech LtdMachinery repair and installation
- Dragonfly Site Services LtdSpecialist contractors
- Arc Energy Systems LtdElectricians
- Floyd’S Consultants LtdProperty developers
- Blues Mechanical LtdInstallers
- Climate Control Cardiff LtdPlumbers and heating engineers
- Campo & Co Developments LtdBuilders
What happens if South Wales Demolition Ltd 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 07451492
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2010 (15 years ago)
- Registered office
- 11 Castle Avenue, Rumney, Cardiff, CF3 4FT
- Nature of business
- Demolition (SIC 43110)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 19 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 Cardiff
Other active groundworks and demolition companies registered in Cardiff.
- Trevett Groundwork's Ltd2026
- Vora Terrain Tech Ltd2014
- Barry Cosslett Ltd1993
- Brevent Group Ltd2025
- Curry & Sons Ltd2026
- Daniel Lawrence TM Ltd2025
- Denver Drilling Services Limited2011
- Fowler Demolition Ltd2024
All groundworks and demolition companies in Cardiff · All trades in Cardiff · Groundworks and demolition across the UK
Frequently asked questions
When are South Wales Demolition Ltd's accounts due?
South Wales Demolition Ltd's next accounts are due at Companies House by 31 January 2027 (in 109 days), covering the period to 30 April 2026.
When is South Wales Demolition Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is South Wales Demolition Ltd still trading?
South Wales Demolition Ltd 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 South Wales Demolition Ltd do?
South Wales Demolition Ltd is registered under Demolition (SIC 43110).
How old is South Wales Demolition Ltd?
South Wales Demolition Ltd was incorporated on 25 November 2010, 15 years ago.
What is the penalty if South Wales Demolition Ltd 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 South Wales Demolition Ltd 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.