- Companies
- Property developers
- London
- Zmarthaus Holdings Limited
Zmarthaus Holdings Limited
- Company number
- 12283597
- Incorporated
- 28 Oct 20196 years trading
- Registered office
- 42 Essex Street, London, WC2R 3JF
- Nature of business
- Development of building projects
Zmarthaus Holdings Limited is a 6-year-old private limited company registered in London, company number 12283597, one of 14,100 property development 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 unchanged on the year before, at £100.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £100 | £0 | £0 | 0 | |
| 31 Dec 2024 | £100 | £0 | 0 | ||
| 31 Dec 2023 | £100 | £0 | £100 | £0 | 0 |
| 31 Dec 2022 | £100 | £0 | £100 | £0 | 0 |
| 31 Dec 2021 | £100 | £0 | £0 | 0 | |
| 31 Dec 2020 | £100 | 0 |
Where Zmarthaus Holdings Limited is registered
The registered office is in London (WC2R), in the Westminster local authority area, London. Show WC2R 3JF on a map.
Other trade companies in WC2R
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- Argspan LtdProperty developers
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- Bullgate Engineering Services Trading LimitedProperty developers
- Metcalfe Engineering LtdCivil engineering
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Also registered at this address
1 other company uses the same registered office as Zmarthaus Holdings Limited.
- Hrep Management LimitedProperty developers
What happens if Zmarthaus Holdings 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 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
- 12283597
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 October 2019 (6 years ago)
- Registered office
- 42 Essex Street, London, WC2R 3JF
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 30 September 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 London
Other active property development companies registered in London.
- Zoish Ltd2023
- Zolger Developments Limited2012
- Zone Holdings Limited2022
- Zone360Estate Ltd2025
- Zoneswitch Residents Management Limited1986
- Zonta Huxter Developments Ltd2023
- Zoom Property Group Ltd2020
- Zoomroom Productions Ltd2012
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Zmarthaus Holdings Limited's accounts due?
Zmarthaus Holdings Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Zmarthaus Holdings Limited'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 Zmarthaus Holdings Limited still trading?
Zmarthaus Holdings 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 Zmarthaus Holdings Limited do?
Zmarthaus Holdings Limited is registered under Development of building projects (SIC 41100).
How old is Zmarthaus Holdings Limited?
Zmarthaus Holdings Limited was incorporated on 28 October 2019, 6 years ago.
What is the penalty if Zmarthaus Holdings 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 Zmarthaus Holdings 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.