- Company number
- 15499478
- Incorporated
- 18 Feb 20242 years trading
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of domestic buildings; Buying and selling of own real estate; Other letting and operating of own or leased real estate
ST Marks Properties (Xvii) Limited is a 2-year-old private limited company registered in London, company number 15499478, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where ST Marks Properties (Xvii) Limited is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
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Shared registered office
1,583 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if ST Marks Properties (Xvii) Limited 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 15499478
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 February 2024 (2 years ago)
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of domestic buildings (SIC 41202)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 17 February 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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.
- ST Marks Properties (Xviii) Limited2025
- ST Marks Properties (XX) Limited2025
- ST Marks Properties (Xxi) Limited2025
- ST Marks Properties (Xxii) Ltd2025
- ST Marks Properties (Xxiii) Ltd2025
- ST Mirren Homes Limited2007
- ST Raymond Construction Ltd2021
- ST. Lawrence Property Group Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are ST Marks Properties (Xvii) Limited's accounts due?
ST Marks Properties (Xvii) Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is ST Marks Properties (Xvii) Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is ST Marks Properties (Xvii) Limited still trading?
ST Marks Properties (Xvii) Limited 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 ST Marks Properties (Xvii) Limited do?
ST Marks Properties (Xvii) Limited is registered under Construction of domestic buildings (SIC 41202); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209).
How old is ST Marks Properties (Xvii) Limited?
ST Marks Properties (Xvii) Limited was incorporated on 18 February 2024, 2 years ago.
What is the penalty if ST Marks Properties (Xvii) Limited 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 ST Marks Properties (Xvii) Limited 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.