- Companies
- Groundworks and demolition
- Newtownards
- Mergellus Ltd
Mergellus Ltd
- Company number
- NI722715
- Incorporated
- 20 Oct 20241 year trading
- Registered office
- 29D Ballygelagh Road, Newtownards, County Down, BT22 1JG
- Nature of business
- Site preparation
Mergellus Ltd is a 1-year-old private limited company registered in Newtownards, company number NI722715, one of 6 groundworks and demolition companies in Newtownards. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House.
Who runs and owns Mergellus Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** P*** | Director | Oct 2024 |
Person with significant control
Where Mergellus Ltd is registered
The registered office is in Newtownards (BT22), in the Ards and North Down local authority area, Northern Ireland. Show BT22 1JG on a map.
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- Jce27 LtdElectricians
- Quiki-Leaks LimitedPlumbers and heating engineers
- Blessed Clean Homes LimitedCleaning companies
- La Croft Civils LtdCivil engineering
What happens if Mergellus 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 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
- NI722715
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2024 (1 year ago)
- Registered office
- 29D Ballygelagh Road, Newtownards, County Down, BT22 1JG
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 19 October 2025
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Newtownards
Other active groundworks and demolition companies registered in Newtownards.
- Willow Contracts (N.I.) Limited2015
- Cab Plant Ltd2016
- Dirt Monkey Groundworks Ltd2026
- Eric McBlain Limited2006
- Hamilton Bogie the Mini Piling Company Ltd2002
All groundworks and demolition companies in Newtownards · All trades in Newtownards · Groundworks and demolition across the UK
Frequently asked questions
When are Mergellus Ltd's accounts due?
Mergellus Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Mergellus Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Mergellus Ltd still trading?
Mergellus 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 Mergellus Ltd do?
Mergellus Ltd is registered under Site preparation (SIC 43120).
How old is Mergellus Ltd?
Mergellus Ltd was incorporated on 20 October 2024, 1 year ago.
Who runs Mergellus Ltd?
Mergellus Ltd has 1 active director, the longest-serving appointed in Oct 2024. Their names and service addresses are on the Companies House register.
Who owns Mergellus Ltd?
One person or company has significant control of Mergellus Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Mergellus 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 Mergellus 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.