- Companies
- Finishing trades
- London
- Polytechnitis Ltd
Polytechnitis Ltd
- Company number
- 13945634
- Incorporated
- 1 Mar 20224 years trading
- Registered office
- Apartment 16 Terracotta Court, 167 Tower Bridge Road, London, SE1 3LN
- Nature of business
- Other building completion and finishing; Architectural activities; Urban planning and landscape architectural activities; Combined facilities support activities
Polytechnitis Ltd is a 4-year-old private limited company registered in London, company number 13945634, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 28 December 2026, and the CT600 for the period to 28 March 2026 is due at HMRC on 28 March 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 £44 (+0.3%) on the year before, to £15K.
- Current assets of £33K against £19K owed within a year: 1.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £15K | £33K | £19K | 1 | |
| 31 Mar 2024 | £15K | £50K | £35K | 1 | |
| 31 Mar 2023 | -£4,013 | £56K | £60K | 1 |
Where Polytechnitis Ltd is registered
The registered office is in London (SE1), in the Southwark local authority area, London. Show SE1 3LN on a map.
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- Green Lane Cobham LtdProperty developers
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What happens if Polytechnitis 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 28 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Dec 2026 to 28 Jan 2027 | £150 |
| 1 to 3 months late | 29 Jan 2027 to 28 Mar 2027 | £375 |
| 3 to 6 months late | 29 Mar 2027 to 28 Jun 2027 | £750 |
| More than 6 months late | From 29 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Mar 2027 | £200 |
| 3 months late | 28 Jun 2027 | another £200 |
| 6 months late | 28 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Mar 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
- 13945634
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 March 2022 (4 years ago)
- Registered office
- Apartment 16 Terracotta Court, 167 Tower Bridge Road, London, SE1 3LN
- Nature of business
- Other building completion and finishing (SIC 43390)
Architectural activities (SIC 71111)
Urban planning and landscape architectural activities (SIC 71112)
Combined facilities support activities (SIC 81100) - Year end
- 28 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 February 2026
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.
- Pooley's of Greenwich Limited1995
- Pordel Ltd2022
- Portclean Services Solutions Limited2016
- Powell and Wallace Enterprise Ltd2026
- Powell London (Luton) Limited2023
- Powley and Gray Building Group Ltd2024
- PP Property Maintenance Ltd2025
- PPG Agents Limited2025
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Polytechnitis Ltd's accounts due?
Polytechnitis Ltd's next accounts are due at Companies House by 28 December 2026 (in 75 days), covering the period to 28 March 2026.
When is Polytechnitis Ltd's CT600 due?
The CT600 for the period to 28 March 2026 is due at HMRC by 28 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 December 2026.
Is Polytechnitis Ltd still trading?
Polytechnitis 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 Polytechnitis Ltd do?
Polytechnitis Ltd is registered under Other building completion and finishing (SIC 43390); Architectural activities (SIC 71111); Urban planning and landscape architectural activities (SIC 71112); Combined facilities support activities (SIC 81100).
How old is Polytechnitis Ltd?
Polytechnitis Ltd was incorporated on 1 March 2022, 4 years ago.
What is the penalty if Polytechnitis 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 Polytechnitis 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.