- Companies
- Scaffolders
- Thornton Heath
- Ian Graeme Crook Ltd
Ian Graeme Crook Ltd
- Company number
- 16422583
- Incorporated
- 30 Apr 20251 year trading
- Registered office
- 153 Silverleigh Road, Thornton Heath, CR7 6DT
- Nature of business
- Scaffold erection
Ian Graeme Crook Ltd is a 1-year-old private limited company registered in Thornton Heath, company number 16422583, one of the UK's scaffolding companies. Its next accounts are due at Companies House on 31 January 2027, and its first CT600 is due at HMRC on 29 April 2027.
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?
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Where Ian Graeme Crook Ltd is registered
The registered office is in Thornton Heath (CR7), in the Croydon local authority area, London. Show CR7 6DT on a map.
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What happens if Ian Graeme Crook 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16422583
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 April 2025 (1 year ago)
- Registered office
- 153 Silverleigh Road, Thornton Heath, CR7 6DT
- Nature of business
- Scaffold erection (SIC 43991)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 29 April 2026
- Previous names
- Diaaana Ltd (until 24 Jun 2026)
Filing notes for scaffolding companies
Scaffolding companies own a lot of equipment that wears out, so capital allowances on scaffold stock and vehicles are usually the biggest adjustment between accounting profit and taxable profit.
Similar companies in Thornton Heath
Other active scaffolding companies registered in Thornton Heath.
All scaffolding companies in Thornton Heath · All trades in Thornton Heath · Scaffolders across the UK
Frequently asked questions
When are Ian Graeme Crook Ltd's accounts due?
Ian Graeme Crook Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Ian Graeme Crook 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 29 April 2026, due by 29 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ian Graeme Crook Ltd still trading?
Ian Graeme Crook 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 Ian Graeme Crook Ltd do?
Ian Graeme Crook Ltd is registered under Scaffold erection (SIC 43991).
How old is Ian Graeme Crook Ltd?
Ian Graeme Crook Ltd was incorporated on 30 April 2025, 1 year ago.
What is the penalty if Ian Graeme Crook 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 Ian Graeme Crook 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.