- Companies
- Property developers
- Basildon
- ST Marks Union Limited
ST Marks Union Limited
- Company number
- 15291113
- Incorporated
- 17 Nov 20232 years trading
- Registered office
- 4 Chester Court, Chester Hall Lane, Basildon, SS14 3WR
- Nature of business
- Development of building projects
ST Marks Union Limited is a 2-year-old private limited company registered in Basildon, company number 15291113, one of 182 property development companies in Basildon. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where ST Marks Union Limited is registered
The registered office is in Basildon (SS14), in the Basildon local authority area, East of England. Show SS14 3WR on a map.
Other trade companies in SS14
- Texaco Essex LtdCleaning companies
- Premier Build Services LimitedFinishing trades
- Justrepairs & Paint LtdMechanics and garages
- Edyghost. LtdBuilders
- MSB Colchester Electrical LimitedElectricians
- Climate One LtdPlumbers and heating engineers
- Elsm LtdElectricians
- Redmarsh Property Maintenance LimitedCleaning companies
Shared registered office
89 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 Union 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
- 15291113
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 November 2023 (2 years ago)
- Registered office
- 4 Chester Court, Chester Hall Lane, Basildon, SS14 3WR
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 11 November 2025
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 Basildon
Other active property development companies registered in Basildon.
- Stack London Limited2013
- Steeple Developments Limited2026
- Stock Brook Developments Limited2021
- Stockplace Investments Limited2004
- Suzzy Homes Ltd2025
- SWP Building Services Ltd2016
- Tan & Sons Developers Ltd2026
- Thompson Welding Limited2014
All property development companies in Basildon · All trades in Basildon · Property developers across the UK
Frequently asked questions
When are ST Marks Union Limited's accounts due?
ST Marks Union Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is ST Marks Union Limited'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 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is ST Marks Union Limited still trading?
ST Marks Union 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 Union Limited do?
ST Marks Union Limited is registered under Development of building projects (SIC 41100).
How old is ST Marks Union Limited?
ST Marks Union Limited was incorporated on 17 November 2023, 2 years ago.
What is the penalty if ST Marks Union 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 Union 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.