- Companies
- Specialist contractors
- Birmingham
- CM Site Management Ltd
CM Site Management Ltd
- Company number
- 16279186
- Incorporated
- 26 Feb 20251 year trading
- Registered office
- 64 Colworth Road, Northfield, Birmingham, B31 1QL
- Nature of business
- Other specialised construction activities n.e.c.
CM Site Management Ltd is a 1-year-old private limited company registered in Birmingham, company number 16279186, one of 442 specialist construction companies in Birmingham. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 7 March 2026, as filed at Companies House.
Where CM Site Management Ltd is registered
The registered office is in Birmingham (B31), in the Birmingham local authority area, West Midlands. Show B31 1QL on a map.
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- Water Wizards Birmingham LtdPlumbers and heating engineers
- Britannia Air Con LtdPlumbers and heating engineers
- R Beech Electrical Installations LtdElectricians
- Desyle LtdFinishing trades
- Novagleam Cleaning Solutions LtdCleaning companies
- Quantum Electrical Services LtdElectricians
- Mullins Renewables Management LtdCivil engineering
Also registered at this address
1 other company uses the same registered office as CM Site Management Ltd.
- Mullins Renewables Management LtdCivil engineering
What happens if CM Site Management 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 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16279186
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2025 (1 year ago)
- Registered office
- 64 Colworth Road, Northfield, Birmingham, B31 1QL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 7 March 2026
- Last confirmation statement
- 22 January 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.
- CML Projects Limited2019
- Coleman Engineering Services Limited2015
- Coles Fine Finishes Limited2004
- Colloff Construction Ltd2025
- Complete Construction (Midlands) Limited2012
- Connaire Contractors Ltd2018
- Construction and Demolition Services Limited2019
- Contract Lift UK Limited2013
All specialist construction companies in Birmingham · All trades in Birmingham · Specialist contractors across the UK
Frequently asked questions
When are CM Site Management Ltd's accounts due?
CM Site Management Ltd's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is CM Site Management Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is CM Site Management Ltd still trading?
CM Site Management 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 CM Site Management Ltd do?
CM Site Management Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is CM Site Management Ltd?
CM Site Management Ltd was incorporated on 26 February 2025, 1 year ago.
What is the penalty if CM Site Management 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 CM Site Management 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.