- Companies
- Installers
- Doncaster
- Onm Construction Group Ltd
Onm Construction Group Ltd
- Company number
- 16228451
- Incorporated
- 4 Feb 20251 year trading
- Registered office
- Unit 5 Carr Grange Business Centre, Carr Grange, Doncaster, South Yorkshire, DN4 5HY
- Nature of business
- Other construction installation
Onm Construction Group Ltd is a 1-year-old private limited company registered in Doncaster, company number 16228451, one of 128 installation companies (insulation, lifts, shutters and similar) in Doncaster. Its next accounts are due at Companies House on 4 November 2026, and its first CT600 is due at HMRC on 3 February 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 Onm Construction Group Ltd is registered
The registered office is in Doncaster (DN4), in the Doncaster local authority area, Yorkshire and The Humber. Show DN4 5HY on a map.
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What happens if Onm Construction Group 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 4 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Nov 2026 to 4 Dec 2026 | £150 |
| 1 to 3 months late | 5 Dec 2026 to 4 Feb 2027 | £375 |
| 3 to 6 months late | 5 Feb 2027 to 4 May 2027 | £750 |
| More than 6 months late | From 5 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16228451
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 February 2025 (1 year ago)
- Registered office
- Unit 5 Carr Grange Business Centre, Carr Grange, Doncaster, South Yorkshire, DN4 5HY
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 February 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Doncaster
Other active installation companies (insulation, lifts, shutters and similar) registered in Doncaster.
- Oz Cladding Ltd2020
- Pcio Limited2009
- PCS (Yorkshire) Limited2026
- Pearson Seating Installations Ltd2025
- Perfect Work Shop Fitters Ltd2025
- PJW Safety Netting Limited2023
- Practical Solution Building Joinery & Refurbishment Ltd2023
- Pro Craft Installers Ltd2014
All installation companies (insulation, lifts, shutters and similar) in Doncaster · All trades in Doncaster · Installers across the UK
Frequently asked questions
When are Onm Construction Group Ltd's accounts due?
Onm Construction Group Ltd's next accounts are due at Companies House by 4 November 2026 (in 23 days), covering the period to 28 February 2026.
When is Onm Construction Group 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 3 February 2026, due by 3 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Onm Construction Group Ltd still trading?
Onm Construction Group 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 Onm Construction Group Ltd do?
Onm Construction Group Ltd is registered under Other construction installation (SIC 43290).
How old is Onm Construction Group Ltd?
Onm Construction Group Ltd was incorporated on 4 February 2025, 1 year ago.
What is the penalty if Onm Construction Group 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 Onm Construction Group 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.