- Companies
- Finishing trades
- London
- Seuthopolis Ltd
Seuthopolis Ltd
- Company number
- 12362492
- Incorporated
- 13 Dec 20196 years trading
- Registered office
- Flat 14, Hazelwood House, London, N13 5RE
- Nature of business
- Other building completion and finishing
Seuthopolis Ltd is a 6-year-old private limited company registered in London, company number 12362492, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £7,833 (-78.4%) on the year before, to £2,154.
- Net assets rose in 1 of 5 year-on-year comparisons on record.
- Current assets of £36K against £12K owed within a year: 3.1 times cover.
- 1 employee on average during the year.
- 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 Dec 2025 | £2,154 | £36K | £12K | 1 | |
| 31 Dec 2024 | £9,987 | £36K | £3,100 | 1 | |
| 31 Dec 2023 | £35K | £61K | £0 | 1 | |
| 31 Dec 2022 | £37K | £96K | £3,551 | 1 | |
| 31 Dec 2021 | £60K | £124K | £8,986 | 1 | |
| 31 Dec 2020 | £38K | £112K | £24K | 0 |
Where Seuthopolis Ltd is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 5RE on a map.
Other trade companies in N13
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- Danni Plumbing LtdPlumbers and heating engineers
What happens if Seuthopolis 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12362492
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 December 2019 (6 years ago)
- Registered office
- Flat 14, Hazelwood House, London, N13 5RE
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 December 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Sextius Services Limited2025
- SFB Construction Ltd2018
- SFS Fasades Ltd2018
- Sfy Ltd2021
- SGB Construction Solutions Ltd2024
- Sgi Service Group Ltd2019
- SH Homes Ltd2023
- SH&M Steel Fixing Ltd2018
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Seuthopolis Ltd's accounts due?
Seuthopolis Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Seuthopolis Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Seuthopolis Ltd still trading?
Seuthopolis 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 Seuthopolis Ltd do?
Seuthopolis Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Seuthopolis Ltd?
Seuthopolis Ltd was incorporated on 13 December 2019, 6 years ago.
What is the penalty if Seuthopolis 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 Seuthopolis 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.