- Company number
- 16481059
- Incorporated
- 28 May 20251 year trading
- Registered office
- 20 Troy Street, Blackburn, Lancashire, BB1 6NY
- Nature of business
- Construction of domestic buildings; Plumbing, heat and air-conditioning installation
Onyx Developments NW Ltd is a 1-year-old private limited company registered in Blackburn, company number 16481059, one of 92 building contractors in Blackburn. Its next accounts are due at Companies House on 28 February 2027, and its first CT600 is due at HMRC on 27 May 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 Onyx Developments NW Ltd is registered
The registered office is in Blackburn (BB1), in the Blackburn with Darwen local authority area, North West. Show BB1 6NY on a map.
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- Mat Tinker Refinishing LtdPainters and decorators
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What happens if Onyx Developments NW 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
- 16481059
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 May 2025 (1 year ago)
- Registered office
- 20 Troy Street, Blackburn, Lancashire, BB1 6NY
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 May 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 Blackburn
Other active building contractors registered in Blackburn.
- Palenta Services Ltd2022
- Professional Bricklayers Ltd2026
- Rapidel Ltd2026
- RBM Developments (Holdings) Limited2018
- Rosestone Resurfacing Limited2024
- Rozenbrozen Ltd2025
- S Whelan Roofing & Building Ltd2023
- S.P.R Brickwork Ltd2025
All building contractors in Blackburn · All trades in Blackburn · Builders across the UK
Frequently asked questions
When are Onyx Developments NW Ltd's accounts due?
Onyx Developments NW Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Onyx Developments NW 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 27 May 2026, due by 27 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Onyx Developments NW Ltd still trading?
Onyx Developments NW 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 Onyx Developments NW Ltd do?
Onyx Developments NW Ltd is registered under Construction of domestic buildings (SIC 41202); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Onyx Developments NW Ltd?
Onyx Developments NW Ltd was incorporated on 28 May 2025, 1 year ago.
What is the penalty if Onyx Developments NW 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 Onyx Developments NW 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.