- Company number
- 10964161
- Incorporated
- 14 Sep 20179 years trading
- Registered office
- 147 Boundary Road, London, N22 6AR
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Alfa Construction Ltd is a 9-year-old private limited company registered in London, company number 10964161, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £19K on the year before, to £20K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £367 against £1,001 owed within a year: 0.4 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £20K | £367 | £1,001 | 2 | |
| 31 Aug 2024 | £113 | £9,467 | £1,001 | 1 | |
| 31 Aug 2023 | £217 | £12K | £1,255 | 1 | |
| 31 Aug 2022 | £15 | £14K | £1,394 | 1 | |
| 31 Aug 2021 | £13K | £31K | £2,967 | 1 | |
| 31 Aug 2020 | £4,163 | £6,759 | £2,596 | 1 | |
| 13 Sep 2019 | £197 | £3,584 | £3,584 | £43 | |
| 13 Sep 2018 | £13 | £798 | £798 | £3 |
Where Alfa Construction Ltd is registered
The registered office is in London (N22), in the Haringey local authority area, London. Show N22 6AR on a map.
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- Vale UK Homes LtdPainters and decorators
- Tradepeople LtdGroundworks and demolition
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- Begkolli LtdInstallers
- Zeematics Market LtdPainters and decorators
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What happens if Alfa Construction 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 10964161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 September 2017 (9 years ago)
- Registered office
- 147 Boundary Road, London, N22 6AR
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 5 September 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 London
Other active building contractors registered in London.
- Alfa Construction Skills Ltd2014
- Alg Contractors Ltd2021
- Algar Consultants Limited2025
- Algeti Limited2018
- Alhalabi Limited2017
- Alhour for Construction Ltd2025
- Ali & Sons Star Builders Ltd2019
- Ali Khan Builders Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Alfa Construction Ltd's accounts due?
Alfa Construction Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Alfa Construction Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Alfa Construction Ltd still trading?
Alfa Construction Ltd is listed as active on the Companies House register (checked 12 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 Alfa Construction Ltd do?
Alfa Construction Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Alfa Construction Ltd?
Alfa Construction Ltd was incorporated on 14 September 2017, 9 years ago.
What is the penalty if Alfa Construction 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 Alfa Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.