- Companies
- Civil engineering
- London
- Mygm Civil Ltd
Mygm Civil Ltd
- Company number
- 05348226
- Incorporated
- 31 Jan 200521 years trading
- Registered office
- 2ND Floor, Beaumont House,, 1B Lambton Road, London, SW20 0LW
- Nature of business
- Construction of water projects; Buying and selling of own real estate
Mygm Civil Ltd is a 21-year-old private limited company registered in London, company number 05348226, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
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 up £27K (+172.5%) on the year before, to £43K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £67K against £74K owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £43K | £24K | £67K | £74K | 1 |
| 31 Mar 2024 | £16K | £6,998 | £51K | £29K | 1 |
| 31 Mar 2023 | £11K | £21K | £40K | £17K | 0 |
| 31 Mar 2022 | £8,905 | £28K | £39K | £16K | 1 |
| 31 Mar 2021 | -£5,895 | £29K | £39K | £20K | 1 |
| 31 Mar 2020 | -£11K | £11K | £22K | £33K | 1 |
| 31 Mar 2019 | -£19K | £3,692 | £15K | £34K | 1 |
| 31 Mar 2018 | -£22K | £1,201 | £12K | £35K | |
| 31 Mar 2017 | £15K | £23K | £34K | £20K | |
| 31 Mar 2016 | £5,575 | £1,373 | £12K | £6,925 |
Where Mygm Civil Ltd is registered
The registered office is in London (SW20), in the Merton local authority area, London. Show SW20 0LW on a map.
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Also registered at this address
3 other companies use the same registered office as Mygm Civil Ltd.
- Ac Roofing & Carpentry LtdRoofers
- Berios UK LtdBuilders
- Paris Electrical LtdElectricians
What happens if Mygm Civil 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 05348226
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2005 (21 years ago)
- Registered office
- 2ND Floor, Beaumont House,, 1B Lambton Road, London, SW20 0LW
- Nature of business
- Construction of water projects (SIC 42910)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 October 2025
- Charges (mortgages)
- 0 outstanding of 1 registered
- Previous names
- Terrastar Ltd (until 9 Mar 2023)
M South Limited (until 17 Jun 2010)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- N Pindoria Construction Limited2009
- N. P. Building Consultants Limited2005
- N.A.B.L Ltd2019
- N21 Building Ltd2003
- Na General Construction Ltd2013
- Nadia and Co Limited2014
- Nadiifo Service Limited2025
- Nakfa Solution Ltd2025
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Mygm Civil Ltd's accounts due?
Mygm Civil Ltd's next accounts are due at Companies House by 31 December 2026 (in 78 days), covering the period to 31 March 2026.
When is Mygm Civil Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Mygm Civil Ltd still trading?
Mygm Civil 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 Mygm Civil Ltd do?
Mygm Civil Ltd is registered under Construction of water projects (SIC 42910); Buying and selling of own real estate (SIC 68100).
How old is Mygm Civil Ltd?
Mygm Civil Ltd was incorporated on 31 January 2005, 21 years ago.
What is the penalty if Mygm Civil 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 Mygm Civil 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.