- Companies
- Cleaning companies
- Belfast
- Diamond Domestic N.I. Ltd
Diamond Domestic N.I. Ltd
- Company number
- NI728696
- Incorporated
- 17 Apr 20251 year trading
- Registered office
- Office 5B, 28, Townsend Enterprise Park, Townsend Street, Belfast, BT13 2ES
- Nature of business
- General cleaning of buildings
Diamond Domestic N.I. Ltd is a 1-year-old private limited company registered in Belfast, company number NI728696, one of 123 cleaning companies in Belfast. Its next accounts are due at Companies House on 17 January 2027, and its first CT600 is due at HMRC on 16 April 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Diamond Domestic N.I. Ltd is registered
The registered office is in Belfast (BT13), in the Belfast local authority area, Northern Ireland. Show BT13 2ES on a map.
Other trade companies in BT13
- Cappo LtdJoiners and carpenters
- Jamie.G LtdMachinery repair and installation
- DTM Precision LtdInstallers
- P & M Construction LtdBuilders
- Boiler Pro N.I. LtdPlumbers and heating engineers
- FMV Construction N.I. LtdSpecialist contractors
- Iba Cars LtdMotor traders
- Budget Contracts LtdGroundworks and demolition
Also registered at this address
23 other companies use the same registered office as Diamond Domestic N.I. Ltd.
- Boiler Pro N.I. LtdPlumbers and heating engineers
- Budget Contracts LtdGroundworks and demolition
- Cappo LtdJoiners and carpenters
- CKJ Cars N.I. LtdMotor traders
- CKRT Contracts LtdCleaning companies
- CMK Automotive LtdCleaning companies
- CND Joinery & Flooring LtdJoiners and carpenters
- Dma Joinery N.I. LtdJoiners and carpenters
- Doone Plumbing and Heating LtdPlumbers and heating engineers
- G C Properties N.I. LtdSpecialist contractors
- GG Patterson Joinery LtdJoiners and carpenters
- JBG Groundworks LtdGroundworks and demolition
- Johnston Roofing LtdRoofers
- MCP Renovations LtdSpecialist contractors
- MMG Electrical Services LtdElectricians
- MMT Commercials LtdFloor and wall tilers
- O'Neill Contractors Belfast LtdPainters and decorators
- Out 'N' About Maintenance LtdSpecialist contractors
- PK Builders N.I. LtdSpecialist contractors
- Property Maintenance N.I. LtdSpecialist contractors
- The Floor Co N.I. LtdFloor and wall tilers
- TK Property N.I. LtdSpecialist contractors
- Whiter Floors Lisburn LtdFloor and wall tilers
What happens if Diamond Domestic N.I. 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 17 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jan 2027 to 17 Feb 2027 | £150 |
| 1 to 3 months late | 18 Feb 2027 to 17 Apr 2027 | £375 |
| 3 to 6 months late | 18 Apr 2027 to 17 Jul 2027 | £750 |
| More than 6 months late | From 18 Jul 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
- NI728696
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 April 2025 (1 year ago)
- Registered office
- Office 5B, 28, Townsend Enterprise Park, Townsend Street, Belfast, BT13 2ES
- Nature of business
- General cleaning of buildings (SIC 81210)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 16 April 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Belfast
Other active cleaning companies registered in Belfast.
- Directclean Supplies Ltd2025
- Dust Detectors Ltd2025
- Elite Clean & Maintenance Ltd2021
- Elite Exteriors Ltd2026
- Entomol Limited2013
- Environmental Contract Cleaners Limited2008
- Every Last Detail N.I. Ltd2026
- Express Valeting NI Centre Limited2020
All cleaning companies in Belfast · All trades in Belfast · Cleaning companies across the UK
Frequently asked questions
When are Diamond Domestic N.I. Ltd's accounts due?
Diamond Domestic N.I. Ltd's next accounts are due at Companies House by 17 January 2027 (in 96 days), covering the period to 30 April 2026.
When is Diamond Domestic N.I. Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 April 2026, due by 16 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Diamond Domestic N.I. Ltd still trading?
Diamond Domestic N.I. 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 Diamond Domestic N.I. Ltd do?
Diamond Domestic N.I. Ltd is registered under General cleaning of buildings (SIC 81210).
How old is Diamond Domestic N.I. Ltd?
Diamond Domestic N.I. Ltd was incorporated on 17 April 2025, 1 year ago.
What is the penalty if Diamond Domestic N.I. 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 Diamond Domestic N.I. 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.