- Company number
- 11323203
- Incorporated
- 23 Apr 20188 years trading
- Registered office
- 368 Forest Road, London, E17 5JF
- Nature of business
- Construction of domestic buildings
Potamitis Ltd is a 8-year-old private limited company registered in London, company number 11323203, one of 12,075 building contractors 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 up £34 (+0.4%) on the year before, to £9,698.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £28K against £22K owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £9,698 | £25K | £28K | £22K | 2 |
| 30 Apr 2024 | £9,664 | £21K | £22K | £19K | 2 |
| 30 Apr 2023 | £12K | £23K | £25K | £22K | 2 |
| 30 Apr 2022 | -£2,839 | £14K | £18K | £21K | 2 |
| 30 Apr 2021 | -£222 | £16K | £17K | £20K | 2 |
| 30 Apr 2020 | £2,739 | £4,726 | £21K | £20K | 2 |
| 30 Apr 2019 | £3,249 | £12K | £13K | £11K | 2 |
Where Potamitis Ltd is registered
The registered office is in London (E17), in the Waltham Forest local authority area, London. Show E17 5JF on a map.
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Also registered at this address
13 other companies use the same registered office as Potamitis Ltd.
- Alban City Construction LtdBuilders
- Ardm Group LtdProperty developers
- Beauchamp Construction LtdLandscapers and gardeners
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- Grantlands Investments LimitedProperty developers
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- One-Above LtdSpecialist contractors
- Overlid LimitedProperty developers
- Sparta Pest Control LtdCleaning companies
- Station Cars London LtdMechanics and garages
- ZK Building Services LimitedFinishing trades
What happens if Potamitis 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
- 11323203
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 April 2018 (8 years ago)
- Registered office
- 368 Forest Road, London, E17 5JF
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 22 April 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Potential Contract Limited2016
- Potes Fences Limited2023
- Potok Builders Ltd2016
- Poulain Limited2025
- Poulnet Ltd2016
- Power Construction Workforce Ltd2022
- Power Genius Construction Ltd2020
- Power Land Development Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Potamitis Ltd's accounts due?
Potamitis Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Potamitis 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 Potamitis Ltd still trading?
Potamitis 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 Potamitis Ltd do?
Potamitis Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Potamitis Ltd?
Potamitis Ltd was incorporated on 23 April 2018, 8 years ago.
What is the penalty if Potamitis 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 Potamitis 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.