- Companies
- Property developers
- London
- Turn Key Alliance Limited
Turn Key Alliance Limited
- Company number
- 11299850
- Incorporated
- 9 Apr 20188 years trading
- Registered office
- 46 Half Acre Road, London, W7 3JJ
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings; Buying and selling of own real estate
Turn Key Alliance Limited is a 8-year-old private limited company registered in London, company number 11299850, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £287 (-50.2%) on the year before, to £285.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £50K against £53K owed within a year: 0.9 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £285 | £50K | £53K | 2 | |
| 30 Apr 2024 | £572 | £39K | £40K | 2 | |
| 30 Apr 2023 | £1,545 | £30K | £19K | 1 | |
| 30 Apr 2022 | £198 | £21K | £9,736 | 2 | |
| 30 Apr 2021 | £4 | £3,285 | £26K | £12K | 2 |
| 30 Apr 2020 | £101 | £600 | £3,749 | 2 | |
| 30 Apr 2019 | £9,661 |
Where Turn Key Alliance Limited is registered
The registered office is in London (W7), in the Ealing local authority area, London. Show W7 3JJ on a map.
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What happens if Turn Key Alliance 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 11299850
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 April 2018 (8 years ago)
- Registered office
- 46 Half Acre Road, London, W7 3JJ
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Buying and selling of own real estate (SIC 68100) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 14 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 London
Other active property development companies registered in London.
- Turnbull Homes Europe Limited2026
- Turner Monroe Group Ltd2019
- Turners Mull Ltd2026
- Turnit Limited2008
- Turnkey Ready Ltd2026
- Turnstone Building Services Limited2019
- Turnstone Group Limited2008
- Turxs Limited2025
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Turn Key Alliance Limited's accounts due?
Turn Key Alliance Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Turn Key Alliance Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Turn Key Alliance Limited still trading?
Turn Key Alliance 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 Turn Key Alliance Limited do?
Turn Key Alliance Limited is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Buying and selling of own real estate (SIC 68100).
How old is Turn Key Alliance Limited?
Turn Key Alliance Limited was incorporated on 9 April 2018, 8 years ago.
What is the penalty if Turn Key Alliance 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 Turn Key Alliance 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.