- Companies
- Specialist contractors
- London
- Cosmin Paun Ltd
Cosmin Paun Ltd
- Company number
- 13363890
- Incorporated
- 28 Apr 20215 years trading
- Registered office
- 91 Crescent Road, London, SE18 7AH
- Nature of business
- Other specialised construction activities n.e.c.; Wholesale of waste and scrap; Other building and industrial cleaning activities
Cosmin Paun Ltd is a 5-year-old private limited company registered in London, company number 13363890, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £2,336 (-822.5%) on the year before, to -£2,052.
- Net assets rose in 0 of 3 year-on-year comparisons on record.
- Current assets of £3,178 against £5,230 owed within a year: 0.6 times cover.
- 9 employees on average, up from 8 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | -£2,052 | £3,178 | £5,230 | 9 | |
| 30 Apr 2024 | £284 | £284 | 8 | ||
| 30 Apr 2023 | £396 | £396 | 9 | ||
| 30 Apr 2022 | £915 | £1,348 | £533 | 5 |
Where Cosmin Paun Ltd is registered
The registered office is in London (SE18), in the Greenwich local authority area, London. Show SE18 7AH on a map.
Other trade companies in SE18
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- Hma Building Services LimitedFinishing trades
- JWJ Road Services LtdCleaning companies
- MK Construction Work LtdBuilders
- Armandopro LimitedBuilders
- Flynn Afghanistan Construction LtdBuilders
- Cleo Clean LtdCleaning companies
- Lutah Electrical LtdElectricians
Also registered at this address
1 other company uses the same registered office as Cosmin Paun Ltd.
- Raresionut LtdBuilders
What happens if Cosmin Paun 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 13363890
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 April 2021 (5 years ago)
- Registered office
- 91 Crescent Road, London, SE18 7AH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Wholesale of waste and scrap (SIC 46770)
Other building and industrial cleaning activities (SIC 81229) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 27 April 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.
- Costa Corrosion Solutions Ltd2014
- Coulson Engineering Ltd2023
- Countryside Lodges Ltd2023
- Courtleigh Ltd2022
- Courts & Co Solutions Ltd2024
- Cowley Build Ltd2024
- Cowley High Voltage Systems Ltd2024
- CPK Facilities Management Ltd2026
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Frequently asked questions
When are Cosmin Paun Ltd's accounts due?
Cosmin Paun Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Cosmin Paun Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Cosmin Paun Ltd still trading?
Cosmin Paun 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 Cosmin Paun Ltd do?
Cosmin Paun Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Wholesale of waste and scrap (SIC 46770); Other building and industrial cleaning activities (SIC 81229).
How old is Cosmin Paun Ltd?
Cosmin Paun Ltd was incorporated on 28 April 2021, 5 years ago.
What is the penalty if Cosmin Paun 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 Cosmin Paun 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.