- Company number
- 15384587
- Incorporated
- 3 Jan 20242 years trading
- Registered office
- 46 Camlet Way, Barnet, EN4 0NS
- Nature of business
- Construction of domestic buildings
H3K Construction Limited is a 2-year-old private limited company registered in Barnet, company number 15384587, one of 201 building contractors in Barnet. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 January 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where H3K Construction Limited is registered
The registered office is in Barnet (EN4), in the Enfield local authority area, London. Show EN4 0NS on a map.
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What happens if H3K Construction Limited 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 15384587
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 January 2024 (2 years ago)
- Registered office
- 46 Camlet Way, Barnet, EN4 0NS
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 2 January 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 Barnet
Other active building contractors registered in Barnet.
- Hertfordshire Management and Development Ltd2016
- Highfield Court Ltd2022
- Home Improvements by Modplan Ltd2012
- Homebuilders Ltd2019
- Hybrid Houses Ltd2014
- Icb Defence Services Ltd2021
- Icb General Building and Civil Engineering Ltd2012
- Icb Services Ltd2022
All building contractors in Barnet · All trades in Barnet · Builders across the UK
Frequently asked questions
When are H3K Construction Limited's accounts due?
H3K Construction Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is H3K Construction Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is H3K Construction Limited still trading?
H3K Construction Limited 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 H3K Construction Limited do?
H3K Construction Limited is registered under Construction of domestic buildings (SIC 41202).
How old is H3K Construction Limited?
H3K Construction Limited was incorporated on 3 January 2024, 2 years ago.
What is the penalty if H3K Construction Limited 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 H3K Construction Limited 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.