- Companies
- Installers
- 333 CN Construction Ltd
333 CN Construction Ltd
- Company number
- 07055356
- Incorporated
- 23 Oct 200916 years trading
- Registered office
- 26 Hillfield Park, London, Winchmore Hill, N21 3QH
- Nature of business
- Other construction installation; Other building completion and finishing
333 CN Construction Ltd is a 16-year-old private limited company registered in Winchmore Hill, company number 07055356, one of the UK's installation companies (insulation, lifts, shutters and similar). 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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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 down £13K (-91.3%) on the year before, to £1,201.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £1,201 | £75 | £11K | 1 | |
| 31 Oct 2024 | £14K | £1,586 | £1,586 | £5,378 | 1 |
| 31 Oct 2023 | £22K | £764 | £4,823 | £5,142 | 1 |
| 31 Oct 2022 | £20K | £52K | £64K | £74K | 1 |
| 31 Oct 2021 | £11K | £4,219 | £23K | £5,742 | 1 |
| 31 Oct 2020 | £13K | £22K | £29K | £8,065 | 1 |
| 31 Oct 2019 | £6,099 | £7,933 | £8,708 | £2,610 | 1 |
| 31 Oct 2018 | £7,860 | £19K | £19K | £12K | 1 |
| 31 Oct 2017 | £4,712 | £1,510 | £14K | £10K | 1 |
| 31 Oct 2016 | £6,956 | £429 | £8,374 | £2,594 | 1 |
Who runs and owns 333 CN Construction Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| G*** N*** | Director | Oct 2009 |
Person with significant control
Where 333 CN Construction Ltd is registered
The registered office is in Winchmore Hill (N21), in the Enfield local authority area, London. Show N21 3QH on a map.
Other trade companies in N21
- Churchill Bespoke Tailors LtdRepair services
- Art of Tiling LtdBuilders
- Profinix LimitedBuilders
- Bleachy LimitedCleaning companies
- PP Carpentry LtdBuilders
- 6 Bourne Hill LtdMechanics and garages
- Empire Assessments NVQS LtdSpecialist contractors
- Emergency Sparkz LtdElectricians
Also registered at this address
21 other companies use the same registered office as 333 CN Construction Ltd.
- Best Choice Automotives LtdMotor traders
- C D Contractors LtdPlumbers and heating engineers
- Carme LimitedBuilders
- Complete Property Specialists LtdPlumbers and heating engineers
- Galacte LimitedBuilders
- Global Facility Maintenance LimitedElectricians
- J L W Construction LimitedFinishing trades
- Kalila Property LimitedProperty developers
- L&T Cars LimitedMotor traders
- La Motor Repairs LtdMechanics and garages
- Lazer Bodyworks LimitedMechanics and garages
- M Plumbing Services LtdPlumbers and heating engineers
- Meehan Construction LimitedFinishing trades
- MR Gas LtdPlumbers and heating engineers
- N10 Motor Spares LtdMotor traders
- Nlondonconstruction.Co.UK LimitedFinishing trades
- On Electrical & Fire Alarm LtdElectricians
- Plumbing Care UK LtdPlumbers and heating engineers
- Spoko Project LtdFinishing trades
- Tengo LimitedBuilders
- Yc Autotech Solutions LtdMechanics and garages
What happens if 333 CN 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 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
- 07055356
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2009 (16 years ago)
- Registered office
- 26 Hillfield Park, London, Winchmore Hill, N21 3QH
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 23 October 2025
- Previous names
- Building Care UK Limited (until 30 Jun 2022)
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies
Other active installation companies (insulation, lifts, shutters and similar).
Frequently asked questions
When are 333 CN Construction Ltd's accounts due?
333 CN Construction 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 333 CN Construction 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 333 CN Construction Ltd still trading?
333 CN 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 333 CN Construction Ltd do?
333 CN Construction Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is 333 CN Construction Ltd?
333 CN Construction Ltd was incorporated on 23 October 2009, 16 years ago.
Who runs 333 CN Construction Ltd?
333 CN Construction Ltd has 1 active director, the longest-serving appointed in Oct 2009. Their names and service addresses are on the Companies House register.
Who owns 333 CN Construction Ltd?
One person or company has significant control of 333 CN Construction Ltd: an individual (owns 75% or more of the shares).
What is the penalty if 333 CN 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 333 CN 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.