- Companies
- Property developers
- London
- Eirn Construction Ltd
Eirn Construction Ltd
- Company number
- 17122936
- Incorporated
- 28 Mar 2026
- Registered office
- 21 Willow View, London, SW19 2UR
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Eirn Construction Ltd is a newly incorporated private limited company registered in London, company number 17122936, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 28 December 2027, and its first CT600 is due at HMRC on 27 March 2028.
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 Eirn Construction Ltd is registered
The registered office is in London (SW19), in the Merton local authority area, London. Show SW19 2UR on a map.
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Also registered at this address
2 other companies use the same registered office as Eirn Construction Ltd.
- Cloughfin Electrical Services LtdElectricians
- Gold Grain Construction LtdProperty developers
What happens if Eirn Construction 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Dec 2027 to 28 Jan 2028 | £150 |
| 1 to 3 months late | 29 Jan 2028 to 28 Mar 2028 | £375 |
| 3 to 6 months late | 29 Mar 2028 to 28 Jun 2028 | £750 |
| More than 6 months late | From 29 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 17122936
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 March 2026
- Registered office
- 21 Willow View, London, SW19 2UR
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Eitan Investments Limited2021
- Ej Urban Ltd2026
- Ejy Limited2018
- Ejz Property Ltd2021
- Ek Construction Consultancy Ltd2025
- Eker Properties Limited1953
- Ekinox Global Ltd2025
- Ekinox Investments Ltd2025
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Eirn Construction Ltd's accounts due?
Eirn Construction Ltd's next accounts are due at Companies House by 28 December 2027 (in 441 days), covering the period to 31 March 2027.
When is Eirn Construction 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 March 2027, due by 27 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Eirn Construction Ltd still trading?
Eirn Construction 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 Eirn Construction Ltd do?
Eirn Construction Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Eirn Construction Ltd?
Eirn Construction Ltd was incorporated on 28 March 2026, less than a year ago.
What is the penalty if Eirn Construction 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 Eirn Construction 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.