- Companies
- Specialist contractors
- Birmingham
- Colloff Construction Ltd
Colloff Construction Ltd
- Company number
- 16560629
- Incorporated
- 3 Jul 20251 year trading
- Registered office
- 14 Charlbury Avenue, Birmingham, West Midlands, B37 5BG
- Nature of business
- Other specialised construction activities n.e.c.
Colloff Construction Ltd is a 1-year-old private limited company registered in Birmingham, company number 16560629, one of 442 specialist construction companies in Birmingham. Its next accounts are due at Companies House on 3 April 2027, and its first CT600 is due at HMRC on 2 July 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.
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Where Colloff Construction Ltd is registered
The registered office is in Birmingham (B37), in the Solihull local authority area, West Midlands. Show B37 5BG on a map.
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What happens if Colloff 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 3 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Apr 2027 to 3 May 2027 | £150 |
| 1 to 3 months late | 4 May 2027 to 3 Jul 2027 | £375 |
| 3 to 6 months late | 4 Jul 2027 to 3 Oct 2027 | £750 |
| More than 6 months late | From 4 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16560629
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2025 (1 year ago)
- Registered office
- 14 Charlbury Avenue, Birmingham, West Midlands, B37 5BG
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 2 July 2026
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 in Birmingham
Other active specialist construction companies registered in Birmingham.
- Complete Construction (Midlands) Limited2012
- Connaire Contractors Ltd2018
- Construction and Demolition Services Limited2019
- Contract Lift UK Limited2013
- Contruction World Ltd2023
- Court Property Maintenance Ltd2015
- Csuuv Limited2024
- Cullen Property Management Ltd2024
All specialist construction companies in Birmingham · All trades in Birmingham · Specialist contractors across the UK
Frequently asked questions
When are Colloff Construction Ltd's accounts due?
Colloff Construction Ltd's next accounts are due at Companies House by 3 April 2027 (in 173 days), covering the period to 31 July 2026.
When is Colloff 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 2 July 2026, due by 2 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Colloff Construction Ltd still trading?
Colloff 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 Colloff Construction Ltd do?
Colloff Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Colloff Construction Ltd?
Colloff Construction Ltd was incorporated on 3 July 2025, 1 year ago.
What is the penalty if Colloff 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 Colloff 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.