- Companies
- Specialist contractors
- London
- Conport Structures Limited
Conport Structures Limited
- Company number
- 00834064
- Incorporated
- 13 Jan 196561 years trading
- Registered office
- 20-22 Wenlock Road, London, N1 7GU
- Nature of business
- Other specialised construction activities n.e.c.
Conport Structures Limited is a 61-year-old private limited company registered in London, company number 00834064, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £299K (+95.6%) on the year before, to £611K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £701K against £126K owed within a year: 5.6 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £611K | £692K | £701K | £126K | 4 |
| 30 Sep 2024 | £312K | £453K | £484K | £174K | 4 |
| 30 Sep 2023 | £38K | £253K | £264K | £229K | 4 |
| 30 Sep 2022 | £4,684 | £199K | £235K | £232K | 3 |
| 30 Sep 2021 | £452K | £367K | £472K | £22K | 3 |
| 30 Sep 2020 | £512K | £218K | £623K | £114K | 3 |
| 30 Sep 2019 | £191K | £1,999 | £192K | £2,340 | 3 |
| 30 Sep 2018 | £216K | £16K | £401K | £187K | 3 |
Who runs and owns Conport Structures Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (5)
| Name | Role | Appointed |
|---|---|---|
| W*** S*** | Director | Feb 2005 |
| A*** M*** | Director | Apr 2008 |
| F*** M*** | Director | Oct 2023 |
| L*** M*** | Director | Oct 2023 |
| W*** S*** | Secretary | Aug 1998 |
8 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| C*** C*** | Secretary | Oct 1994 | Jun 1995 |
| M*** C*** | Secretary | Sep 1995 | Aug 1998 |
| R*** R*** | Secretary | Dec 1992 | |
| S*** T*** | Secretary | Dec 1992 | Oct 1994 |
| H*** C*** | Director | Mar 2002 | |
| F*** C*** | Director | Mar 2008 | Oct 2023 |
| K*** J*** | Director | Jun 2004 | Apr 2008 |
| A*** M*** | Director | Apr 2005 |
Person with significant control
Charges (secured borrowing)
All 2 registered charges have been satisfied. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Lloyds Bank PLC | Satisfied Aug 1992 | Oct 1990 |
| Lloyds Bank PLC | Satisfied Aug 1992 | Dec 1989 |
Where Conport Structures Limited is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
Shared registered office
804 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 Conport Structures 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 00834064
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 1965 (61 years ago)
- Registered office
- 20-22 Wenlock Road, London, N1 7GU
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 30 November 2025
- Charges (mortgages)
- 0 outstanding of 2 registered
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.
- Conrad John Limited2021
- Conscons Ltd2021
- Conserve Consult Limited2025
- Consmartin Consortium Limited2015
- Constantin Mainsolution Ltd2025
- Constral Ltd2022
- Construct and Capture Ltd2025
- Construct Data Management Ltd2023
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Conport Structures Limited's accounts due?
Conport Structures Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Conport Structures Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Conport Structures Limited still trading?
Conport Structures 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 Conport Structures Limited do?
Conport Structures Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Conport Structures Limited?
Conport Structures Limited was incorporated on 13 January 1965, 61 years ago.
Who runs Conport Structures Limited?
Conport Structures Limited has 4 active directors, the longest-serving appointed in Feb 2005. Their names and service addresses are on the Companies House register.
Who owns Conport Structures Limited?
One person or company has significant control of Conport Structures Limited: an individual (owns 75% or more of the shares).
What is the penalty if Conport Structures 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 Conport Structures 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.