- Companies
- Property developers
- London
- Mario 2018 Builder Limited
Mario 2018 Builder Limited
- Company number
- 11354133
- Incorporated
- 10 May 20188 years trading
- Registered office
- 8 Buckstone Road, London, N18 2RH
- Nature of business
- Development of building projects; Other building completion and finishing
Mario 2018 Builder Limited is a 8-year-old private limited company registered in London, company number 11354133, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £6,506 (+46.1%) on the year before, to -£7,601.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £7,011 against £10K owed within a year: 0.7 times cover.
- 9 employees on average, up from 8 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£7,601 | £7,011 | £7,011 | £10K | 9 |
| 31 May 2024 | -£14K | £1,249 | £1,249 | £6,539 | 8 |
| 31 May 2023 | -£20K | £1,431 | £1,431 | £8,673 | 5 |
| 31 May 2022 | -£30K | £16K | £27K | 5 | |
| 31 May 2021 | -£19K | £18K | £18K | £14K | 4 |
| 31 May 2020 | -£4,095 | £24K | £24K | £5,568 | 3 |
| 31 May 2019 | -£1 | -£1 |
Where Mario 2018 Builder Limited is registered
The registered office is in London (N18), in the Enfield local authority area, London. Show N18 2RH on a map.
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What happens if Mario 2018 Builder 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11354133
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 2018 (8 years ago)
- Registered office
- 8 Buckstone Road, London, N18 2RH
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 20 April 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.
- Maripoma Enterprise Limited2022
- Mariposa Grove Limited2017
- Mariyan Design and Build Ltd2015
- Mark Oliver Homes (Huddersfield) Limited2016
- Mark Oliver New Homes Ltd2024
- Mark Phillips Developments Ltd2013
- Mark Randall Developments Limited2001
- Marketgait Dundee Ltd2017
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Mario 2018 Builder Limited's accounts due?
Mario 2018 Builder Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Mario 2018 Builder Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Mario 2018 Builder Limited still trading?
Mario 2018 Builder 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 Mario 2018 Builder Limited do?
Mario 2018 Builder Limited is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390).
How old is Mario 2018 Builder Limited?
Mario 2018 Builder Limited was incorporated on 10 May 2018, 8 years ago.
What is the penalty if Mario 2018 Builder 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 Mario 2018 Builder 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.