- Companies
- Builders
- Northwood Hills
- Alpha Projects Limited
Alpha Projects Limited
- Company number
- 16298140
- Incorporated
- 6 Mar 20251 year trading
- Registered office
- Ryefield Court 81 Joel Street, Northwood Hills, Middlesex, HA6 1LU
- Nature of business
- Construction of domestic buildings; Other building completion and finishing; Management consultancy activities other than financial management
Alpha Projects Limited is a 1-year-old private limited company registered in Northwood Hills, company number 16298140, one of 11 building contractors in Northwood Hills. Its next accounts are due at Companies House on 6 December 2026, and its first CT600 is due at HMRC on 5 March 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Alpha Projects Limited is registered
The registered office is in Northwood Hills (HA6), in the Hillingdon local authority area, London. Show HA6 1LU on a map.
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- Roblar LimitedBuilders
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- Elite London Cleaning LtdCleaning companies
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What happens if Alpha Projects 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 6 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Dec 2026 to 6 Jan 2027 | £150 |
| 1 to 3 months late | 7 Jan 2027 to 6 Mar 2027 | £375 |
| 3 to 6 months late | 7 Mar 2027 to 6 Jun 2027 | £750 |
| More than 6 months late | From 7 Jun 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
- 16298140
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2025 (1 year ago)
- Registered office
- Ryefield Court 81 Joel Street, Northwood Hills, Middlesex, HA6 1LU
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 November 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Northwood Hills
Other active building contractors registered in Northwood Hills.
- Apex Building Group Ltd2026
- C. Lew Hodgins & Sons Limited2013
- Creo Building Services Limited2010
- Greystoke Builders Limited2006
- Lionhead Construction Limited2005
- New Key Designs Limited2008
- P7 Investments London Ltd2021
- Signature 1 Construction Ltd2019
All building contractors in Northwood Hills · All trades in Northwood Hills · Builders across the UK
Frequently asked questions
When are Alpha Projects Limited's accounts due?
Alpha Projects Limited's next accounts are due at Companies House by 6 December 2026 (in 55 days), covering the period to 31 March 2026.
When is Alpha Projects 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 5 March 2026, due by 5 March 2027, 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 Alpha Projects Limited still trading?
Alpha Projects 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 Alpha Projects Limited do?
Alpha Projects Limited is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390); Management consultancy activities other than financial management (SIC 70229).
How old is Alpha Projects Limited?
Alpha Projects Limited was incorporated on 6 March 2025, 1 year ago.
What is the penalty if Alpha Projects 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 Alpha Projects 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.