- Companies
- Specialist contractors
- Rainham
- CGM Building Ltd
CGM Building Ltd
- Company number
- 13691142
- Incorporated
- 20 Oct 20214 years trading
- Registered office
- 4 Lakefields Close, Rainham, Essex, RM13 9SL
- Nature of business
- Other specialised construction activities n.e.c.
CGM Building Ltd is a 4-year-old private limited company registered in Rainham, company number 13691142, one of 59 specialist construction companies in Rainham. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £31K (-100%) on the year before, to £5.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £5 | 2 | |||
| 31 Oct 2023 | £31K | 2 | |||
| 31 Oct 2022 | £11K | 0 |
Where CGM Building Ltd is registered
The registered office is in Rainham (RM13), in the Havering local authority area, London. Show RM13 9SL on a map.
Other trade companies in RM13
- MM Motor Capital LtdMotor traders
- Namto LtdBuilders
- Digline Utilities LtdBuilders
- A & M Heating Plumbing LimitedPlumbers and heating engineers
- Cultured Auto LtdMechanics and garages
- Skyway Home LtdSpecialist contractors
- Car Sales Direct LtdMotor traders
- TLL Engineering Ltd LtdBuilders
Also registered at this address
1 other company uses the same registered office as CGM Building Ltd.
- Cozzy Solutions LtdFinishing trades
What happens if CGM Building 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13691142
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2021 (4 years ago)
- Registered office
- 4 Lakefields Close, Rainham, Essex, RM13 9SL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 19 October 2025
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 Rainham
Other active specialist construction companies registered in Rainham.
- Chelwick Design & Consultancy Ltd2018
- Crainic's Handy Services Ltd2018
- Crown Fire Systems Ltd2023
- DMS Testing Limited2003
- Dynamiq Construct Ltd2025
- Elecrail Ltd2015
- Exquisite London City Ltd2017
- F&A Teo London Construction Ltd2019
All specialist construction companies in Rainham · All trades in Rainham · Specialist contractors across the UK
Frequently asked questions
When are CGM Building Ltd's accounts due?
CGM Building Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is CGM Building 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 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is CGM Building Ltd still trading?
CGM Building 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 CGM Building Ltd do?
CGM Building Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is CGM Building Ltd?
CGM Building Ltd was incorporated on 20 October 2021, 4 years ago.
What is the penalty if CGM Building 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 CGM Building 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.