- Company number
- 13242787
- Incorporated
- 3 Mar 20215 years trading
- Registered office
- 78 Empire Way, Cardiff, CF11 0JW
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
D&M United Ltd is a 5-year-old private limited company registered in Cardiff, company number 13242787, one of 361 building contractors in Cardiff. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 up £776 (+86.6%) on the year before, to £1,672.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £14K against £23K owed within a year: 0.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £1,672 | £14K | £23K | 2 | |
| 31 May 2024 | £896 | £15K | £27K | 2 | |
| 31 May 2023 | £524 | £3,642 | £18K | 2 | |
| 31 Mar 2022 | £626 | £9,098 | £25K | 2 |
Where D&M United Ltd is registered
The registered office is in Cardiff (CF11), in the Cardiff local authority area, Wales. Show CF11 0JW on a map.
Other trade companies in CF11
- DRK Car Sales LimitedMotor traders
- Daily Catering Repairs LtdMachinery repair and installation
- R S Tyres LtdMotor traders
- Cronyx Solutions LimitedBuilders
- Ali Construction Services UK LtdBuilders
- Crown Damp Proofing LtdSpecialist contractors
- Time for You Cardiff LtdCleaning companies
- Logistfix LtdRepair services
What happens if D&M United 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 13242787
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 March 2021 (5 years ago)
- Registered office
- 78 Empire Way, Cardiff, CF11 0JW
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 2 March 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 Cardiff
Other active building contractors registered in Cardiff.
- D.A. Building Maintenance Ltd2025
- Dai Yanto Group Ltd2025
- Delancor Group Services Limited2018
- Derwen May Homes Limited2024
- DML Property Solutions Ltd2026
- Dockham Mechanical Limited2017
- Domesticon Ltd2025
- Domi London Builders Ltd2025
All building contractors in Cardiff · All trades in Cardiff · Builders across the UK
Frequently asked questions
When are D&M United Ltd's accounts due?
D&M United Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is D&M United Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is D&M United Ltd still trading?
D&M United 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 D&M United Ltd do?
D&M United Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is D&M United Ltd?
D&M United Ltd was incorporated on 3 March 2021, 5 years ago.
What is the penalty if D&M United 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 D&M United 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.