- Companies
- Groundworks and demolition
- London
- Three Boy Ann Ltd
Three Boy Ann Ltd
- Company number
- 15237407
- Incorporated
- 26 Oct 20232 years trading
- Registered office
- 10 Harvard Road, London, SE13 6SF
- Nature of business
- Site preparation
Three Boy Ann Ltd is a 2-year-old private limited company registered in London, company number 15237407, one of 287 groundworks and demolition companies in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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.
- Current assets of -£891 against £991 owed within a year: -0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £100 | -£891 | £991 | 1 | |
| 31 Oct 2024 | £100 | £100 | 1 |
Where Three Boy Ann Ltd is registered
The registered office is in London (SE13), in the Lewisham local authority area, London. Show SE13 6SF on a map.
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What happens if Three Boy Ann 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 15237407
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 October 2023 (2 years ago)
- Registered office
- 10 Harvard Road, London, SE13 6SF
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 25 October 2025
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in London
Other active groundworks and demolition companies registered in London.
- Tin Trans Ltd2012
- TLR Geotechnical Ltd2020
- Toge Construction Ltd2020
- Towerstone Construction Limited2025
- Townsite Ltd2025
- Trade Martinez Ltd2025
- Tradepeople Ltd2026
- Trionex Ltd2026
All groundworks and demolition companies in London · All trades in London · Groundworks and demolition across the UK
Frequently asked questions
When are Three Boy Ann Ltd's accounts due?
Three Boy Ann Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Three Boy Ann Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Three Boy Ann Ltd still trading?
Three Boy Ann 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 Three Boy Ann Ltd do?
Three Boy Ann Ltd is registered under Site preparation (SIC 43120).
How old is Three Boy Ann Ltd?
Three Boy Ann Ltd was incorporated on 26 October 2023, 2 years ago.
What is the penalty if Three Boy Ann 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 Three Boy Ann 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.