- Company number
- 14376454
- Incorporated
- 26 Sep 20224 years trading
- Registered office
- 81 New Park Road, Brixton Hill, London, SW2 4ER
- Nature of business
- Construction of commercial buildings
CJK Construction Ltd is a 4-year-old private limited company registered in London, company number 14376454, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £13K on the year before, to £14K.
- Current assets of £25K against £12K owed within a year: 2.1 times cover.
- 1 employee on average, up from -1 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £14K | £5,599 | £25K | £12K | 1 |
| 30 Sep 2024 | £100 | £829 | £4,744 | £5,193 | -1 |
| 30 Sep 2023 | £100 | £6,148 | £16K | £16K | -1 |
Where CJK Construction Ltd is registered
The registered office is in London (SW2), in the Lambeth local authority area, London. Show SW2 4ER on a map.
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What happens if CJK 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 14376454
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 September 2022 (4 years ago)
- Registered office
- 81 New Park Road, Brixton Hill, London, SW2 4ER
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 25 September 2025
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 London
Other active building contractors registered in London.
- CJM Energy Services Ltd2026
- CJM Tile Ltd2016
- Cjo Carpentry Ltd2026
- CK Decoration Limited2017
- CK Direct Developments Limited2014
- CK Prestine Services Ltd2026
- CKC Services Ltd2024
- CL Ross Construction Ltd2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are CJK Construction Ltd's accounts due?
CJK Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is CJK Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is CJK Construction Ltd still trading?
CJK Construction Ltd is listed as active on the Companies House register (checked 12 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 CJK Construction Ltd do?
CJK Construction Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is CJK Construction Ltd?
CJK Construction Ltd was incorporated on 26 September 2022, 4 years ago.
What is the penalty if CJK 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 CJK Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.