- Companies
- Specialist contractors
- London
- Myconstructor Corp Limited
Myconstructor Corp Limited
- Company number
- 12291875
- Incorporated
- 31 Oct 20196 years trading
- Registered office
- PO Box EC1V 2NX, 124 City Road, 124 City Road, London, Great, EC1V 2NX
- Nature of business
- Other specialised construction activities n.e.c.; Advertising agencies
Myconstructor Corp Limited is a 6-year-old private limited company registered in London, company number 12291875, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £100K (+27.9%) on the year before, to £457K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £623K against £166K owed within a year: 3.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £457K | £623K | £623K | £166K | 0 |
| 31 Oct 2024 | £357K | £514K | £514K | £157K | 0 |
| 31 Oct 2023 | £375K | £540K | £540K | £165K | 0 |
| 31 Oct 2022 | £213K | £478K | £478K | £264K | 0 |
| 31 Oct 2021 | £205K | £532K | £328K | 0 | |
| 31 Oct 2020 | £111K | £156K | £49K | 0 |
Where Myconstructor Corp Limited is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
Other trade companies in EC1V
- Cardiff Electrical Solutions LtdElectricians
- Edemis Construction LtdBuilders
- Zaylan LtdProperty developers
- Pronto Roofing and Construction LtdRoofers
- Instal Systems LtdPlumbers and heating engineers
- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
Shared registered office
1,047 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Myconstructor Corp Limited 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 12291875
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 October 2019 (6 years ago)
- Registered office
- PO Box EC1V 2NX, 124 City Road, 124 City Road, London, Great, EC1V 2NX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Advertising agencies (SIC 73110) - Year end
- 31 October (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 10 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 London
Other active specialist construction companies registered in London.
- Mytways Ltd2025
- Mzec Consultancy Ltd2025
- MZK Profix Ltd2025
- MZM Logistics Ltd2025
- MZSC Services Ltd2024
- N Dunbar Roofing Ltd2025
- N P F Design Management Limited2024
- N Robert's Joinery Ltd2017
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Myconstructor Corp Limited's accounts due?
Myconstructor Corp Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Myconstructor Corp Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Myconstructor Corp Limited still trading?
Myconstructor Corp Limited 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 Myconstructor Corp Limited do?
Myconstructor Corp Limited is registered under Other specialised construction activities n.e.c. (SIC 43999); Advertising agencies (SIC 73110).
How old is Myconstructor Corp Limited?
Myconstructor Corp Limited was incorporated on 31 October 2019, 6 years ago.
What is the penalty if Myconstructor Corp Limited 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 Myconstructor Corp Limited 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.