- Companies
- Property developers
- London
- Posner Medical Ltd
Posner Medical Ltd
- Company number
- 16686731
- Incorporated
- 1 Sep 20251 year trading
- Registered office
- Flat 1, 23 Essendine Road, London, W9 2LT
- Nature of business
- Development of building projects; Specialists medical practice activities
Posner Medical Ltd is a 1-year-old private limited company registered in London, company number 16686731, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 1 June 2027, and its first CT600 is due at HMRC on 31 August 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Posner Medical Ltd is registered
The registered office is in London (W9), in the Westminster local authority area, London. Show W9 2LT on a map.
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What happens if Posner Medical 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 1 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 2 Jun 2027 to 1 Jul 2027 | £150 |
| 1 to 3 months late | 2 Jul 2027 to 1 Sep 2027 | £375 |
| 3 to 6 months late | 2 Sep 2027 to 1 Dec 2027 | £750 |
| More than 6 months late | From 2 Dec 2027 | £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
- 16686731
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 September 2025 (1 year ago)
- Registered office
- Flat 1, 23 Essendine Road, London, W9 2LT
- Nature of business
- Development of building projects (SIC 41100)
Specialists medical practice activities (SIC 86220) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 31 August 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Postacre Resident Association Limited1982
- Postcross Limited2000
- Potters Clay Ltd2026
- Potters Newbuild Ltd2026
- Pounder Ltd2021
- Powell's Planned Maintenance Ltd2015
- Powerbuild Exim Ltd2025
- Powering Up Britain Ltd2006
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Posner Medical Ltd's accounts due?
Posner Medical Ltd's next accounts are due at Companies House by 1 June 2027 (in 231 days), covering the period to 30 September 2026.
When is Posner Medical Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 August 2026, due by 31 August 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Posner Medical Ltd still trading?
Posner Medical 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 Posner Medical Ltd do?
Posner Medical Ltd is registered under Development of building projects (SIC 41100); Specialists medical practice activities (SIC 86220).
How old is Posner Medical Ltd?
Posner Medical Ltd was incorporated on 1 September 2025, 1 year ago.
What is the penalty if Posner Medical 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 Posner Medical 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.