- Company number
- 15762011
- Incorporated
- 5 Jun 20242 years trading
- Registered office
- 500 White Hart Lane, London, N17 7NA
- Nature of business
- Construction of domestic buildings; Specialised cleaning services
Alaz Building & Construction Ltd is a 2-year-old private limited company registered in London, company number 15762011, one of 12,075 building contractors 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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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where Alaz Building & Construction Ltd is registered
The registered office is in London (N17), in the Haringey local authority area, London. Show N17 7NA on a map.
Other trade companies in N17
- JKL Building & Maintenance LtdFinishing trades
- Vas-Vent LtdSpecialist contractors
- Zbrsons LtdMotor traders
- Bally 33 LtdBuilders
- Abcd Cleaning LtdCleaning companies
- Mie Cleaning Solutions LtdCleaning companies
- Worklane LtdRoofers
- Figzu LtdCleaning companies
Shared registered office
26 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Alaz Building & 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 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
- 15762011
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 June 2024 (2 years ago)
- Registered office
- 500 White Hart Lane, London, N17 7NA
- Nature of business
- Construction of domestic buildings (SIC 41202)
Specialised cleaning services (SIC 81222) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 4 June 2026
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.
- Alb Building Ltd2021
- Alb Con Construction Ltd2024
- Alb Eagles Ltd2021
- Alb Horizon Construction Ltd2025
- Alb Render UK Ltd2024
- Alban City Construction Ltd2017
- Alban Marku & Co Ltd2021
- Albanoi Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Alaz Building & Construction Ltd's accounts due?
Alaz Building & Construction Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Alaz Building & Construction Ltd'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 Alaz Building & Construction Ltd still trading?
Alaz Building & Construction 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 Alaz Building & Construction Ltd do?
Alaz Building & Construction Ltd is registered under Construction of domestic buildings (SIC 41202); Specialised cleaning services (SIC 81222).
How old is Alaz Building & Construction Ltd?
Alaz Building & Construction Ltd was incorporated on 5 June 2024, 2 years ago.
What is the penalty if Alaz Building & 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 Alaz Building & Construction 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.