- Company number
- 17173905
- Incorporated
- 22 Apr 2026
- Registered office
- Unit B8 Connaught Business Centre, Hyde Estate Road, London, NW9 6JL
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Crownstone Construction Group Ltd is a newly incorporated private limited company registered in London, company number 17173905, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 22 January 2028, and its first CT600 is due at HMRC on 21 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 Crownstone Construction Group 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 Crownstone Construction Group Ltd is registered
The registered office is in London (NW9), in the Barnet local authority area, London. Show NW9 6JL on a map.
Other trade companies in NW9
- KSR & Co. LtdBuilders
- S&M Excavator Hire LtdBuilders
- Autolink Cars LtdMotor traders
- P Auto Motor LtdMechanics and garages
- Euro Car Glass LtdMechanics and garages
- Waely Sons LtdPlumbers and heating engineers
- GM Scaffolding London LtdScaffolders
- Onewais Services LtdCleaning companies
What happens if Crownstone Construction Group 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 22 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 23 Jan 2028 to 22 Feb 2028 | £150 |
| 1 to 3 months late | 23 Feb 2028 to 22 Apr 2028 | £375 |
| 3 to 6 months late | 23 Apr 2028 to 22 Jul 2028 | £750 |
| More than 6 months late | From 23 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
- 17173905
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 April 2026
- Registered office
- Unit B8 Connaught Business Centre, Hyde Estate Road, London, NW9 6JL
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Crownstone Multi Services Ltd2018
- Croxley Greens Ltd2026
- Croydon Home Improvements Ltd2026
- CRV Building Works Limited2015
- Cryscarpentry Ltd2025
- Crystal Clear Surface Ltd2025
- Crystal Glazing Solutions Ltd2026
- Crystal Property Solutions Ltd2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Crownstone Construction Group Ltd's accounts due?
Crownstone Construction Group Ltd's next accounts are due at Companies House by 22 January 2028 (in 466 days), covering the period to 30 April 2027.
When is Crownstone Construction Group 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 21 April 2027, due by 21 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 Crownstone Construction Group Ltd still trading?
Crownstone Construction Group 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 Crownstone Construction Group Ltd do?
Crownstone Construction Group Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Crownstone Construction Group Ltd?
Crownstone Construction Group Ltd was incorporated on 22 April 2026, less than a year ago.
What is the penalty if Crownstone Construction Group 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 Crownstone Construction Group 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.