- Companies
- Specialist contractors
- CSZ Construction Ltd
CSZ Construction Ltd
- Company number
- 17163590
- Incorporated
- 17 Apr 2026
- Registered office
- 129 Station Road, Hendon, London, NW4 4NJ
- Nature of business
- Other specialised construction activities n.e.c.
CSZ Construction Ltd is a newly incorporated private limited company registered in Hendon, company number 17163590, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 17 January 2028, and its first CT600 is due at HMRC on 16 April 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.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for CSZ Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where CSZ Construction Ltd is registered
The registered office is in Hendon (NW4), in the Barnet local authority area, London. Show NW4 4NJ on a map.
Other trade companies in NW4
- City Flow Plumbing & Heating 1 LtdPlumbers and heating engineers
- Avenhall LimitedBuilders
- Steamdeep Cleaning LtdCleaning companies
- Westchester Services LimitedFacilities management
- Amier LtdBuilders
- Remmets LtdProperty developers
- Solar Nest LtdElectricians
- Cranko Construction LtdFinishing trades
Also registered at this address
16 other companies use the same registered office as CSZ Construction Ltd.
- Arra Architecture LtdProperty developers
- Brush & Beyond Painting Solutions LtdPainters and decorators
- Christof Global Impact LimitedMachinery repair and installation
- Deploya LtdProperty developers
- E J Plumbing LtdPlumbers and heating engineers
- Ferromont UK LtdElectricians
- Fresh Home (UK) Ltd.Property developers
- Karol Decorating Ltd.Finishing trades
- London Metropolis Construction LimitedBuilders
- Moria Constructions LtdBuilders
- Ride on 2 LtdMotor traders
- Si.Ar Construction LtdSpecialist contractors
- Si.Ar Solutions LtdSpecialist contractors
- STR Building Solutions LtdSpecialist contractors
- THZ Contractors LtdProperty developers
- Yoffy Construction LtdBuilders
What happens if CSZ 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 17 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jan 2028 to 17 Feb 2028 | £150 |
| 1 to 3 months late | 18 Feb 2028 to 17 Apr 2028 | £375 |
| 3 to 6 months late | 18 Apr 2028 to 17 Jul 2028 | £750 |
| More than 6 months late | From 18 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17163590
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 April 2026
- Registered office
- 129 Station Road, Hendon, London, NW4 4NJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies
Other active specialist construction companies.
Frequently asked questions
When are CSZ Construction Ltd's accounts due?
CSZ Construction Ltd's next accounts are due at Companies House by 17 January 2028 (in 461 days), covering the period to 30 April 2027.
When is CSZ 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 16 April 2027, due by 16 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is CSZ Construction Ltd still trading?
CSZ 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 CSZ Construction Ltd do?
CSZ Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is CSZ Construction Ltd?
CSZ Construction Ltd was incorporated on 17 April 2026, less than a year ago.
What is the penalty if CSZ 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 CSZ 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.