- Company number
- 16806657
- Incorporated
- 23 Oct 2025
- Registered office
- 84 Morse Street, Burnley, BB10 4PB
- Nature of business
- Construction of domestic buildings
Corebase Extensions & Groundwork Ltd is a newly incorporated private limited company registered in Burnley, company number 16806657, one of 57 building contractors in Burnley. Its next accounts are due at Companies House on 23 July 2027, and its first CT600 is due at HMRC on 22 October 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 Corebase Extensions & Groundwork Ltd is registered
The registered office is in Burnley (BB10), in the Burnley local authority area, North West. Show BB10 4PB on a map.
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What happens if Corebase Extensions & Groundwork 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 23 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Jul 2027 to 23 Aug 2027 | £150 |
| 1 to 3 months late | 24 Aug 2027 to 23 Oct 2027 | £375 |
| 3 to 6 months late | 24 Oct 2027 to 23 Jan 2028 | £750 |
| More than 6 months late | From 24 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16806657
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2025
- Registered office
- 84 Morse Street, Burnley, BB10 4PB
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
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 Burnley
Other active building contractors registered in Burnley.
- Culeth Construction Limited1997
- Dale Contractors Limited1986
- Dillon Properties (North West) Limited2012
- DJP Construction (Burnley) Limited1983
- DLW Building Services Ltd2025
- Dobe Construction Ltd2025
- Empire Construction GRP Ltd2024
- Flamemanor Developments Ltd2010
All building contractors in Burnley · All trades in Burnley · Builders across the UK
Frequently asked questions
When are Corebase Extensions & Groundwork Ltd's accounts due?
Corebase Extensions & Groundwork Ltd's next accounts are due at Companies House by 23 July 2027 (in 284 days), covering the period to 31 October 2026.
When is Corebase Extensions & Groundwork 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 22 October 2026, due by 22 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Corebase Extensions & Groundwork Ltd still trading?
Corebase Extensions & Groundwork 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 Corebase Extensions & Groundwork Ltd do?
Corebase Extensions & Groundwork Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Corebase Extensions & Groundwork Ltd?
Corebase Extensions & Groundwork Ltd was incorporated on 23 October 2025, less than a year ago.
What is the penalty if Corebase Extensions & Groundwork 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 Corebase Extensions & Groundwork 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.