- Company number
- 13088356
- Incorporated
- 17 Dec 20205 years trading
- Registered office
- 58 New Bedford Road, Luton, Bedfordshire, LU1 1SH
- Nature of business
- Construction of domestic buildings
Alzi Construct Limited is a 5-year-old private limited company registered in Luton, company number 13088356, one of 708 building contractors in Luton. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 £699 (+11.5%) on the year before, to £6,754.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £12K against £5,314 owed within a year: 2.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 4 years, 2021 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | £6,754 | £12K | £5,314 | 2 | |
| 31 Dec 2023 | £6,055 | £10K | £4,324 | 2 | |
| 31 Dec 2022 | £937 | £10K | £9,219 | 2 | |
| 31 Dec 2021 | £87 | £436 | £349 | 2 |
Who runs and owns Alzi Construct Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| M*** B*** | Director | Dec 2020 |
| G*** S*** | Director | Jul 2024 |
Person with significant control
Where Alzi Construct Limited is registered
The registered office is in Luton (LU1), in the Luton local authority area, East of England. Show LU1 1SH on a map.
Other trade companies in LU1
- Metalia Plastering LtdPlasterers
- Luton Bodyworks LtdMechanics and garages
- Speedyone LtdGroundworks and demolition
- Varion Construction LtdProperty developers
- Bromhams LtdMotor traders
- Vertex Home Improvements LtdRoofers
- Skillede LtdElectricians
- Avram Cleaning LtdCleaning companies
Shared registered office
56 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 Alzi Construct Limited files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 13088356
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2020 (5 years ago)
- Registered office
- 58 New Bedford Road, Luton, Bedfordshire, LU1 1SH
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 18 July 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 Luton
Other active building contractors registered in Luton.
- Am Brickwork Ltd2024
- Am Build Solutions Ltd2025
- Am Builders (Luton) Limited2012
- Amadumi Electrical Ltd2018
- Ams Global Partners Ltd2026
- Amyuvi Construction Limited2025
- An Building Ltd2022
- Anahat Construction Limited2025
All building contractors in Luton · All trades in Luton · Builders across the UK
Frequently asked questions
When are Alzi Construct Limited's accounts due?
Alzi Construct Limited's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Alzi Construct Limited's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Alzi Construct Limited still trading?
Alzi Construct Limited 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 Alzi Construct Limited do?
Alzi Construct Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Alzi Construct Limited?
Alzi Construct Limited was incorporated on 17 December 2020, 5 years ago.
Who runs Alzi Construct Limited?
Alzi Construct Limited has 2 active directors, the longest-serving appointed in Dec 2020. Their names and service addresses are on the Companies House register.
Who owns Alzi Construct Limited?
One person or company has significant control of Alzi Construct Limited: an individual (owns 75% or more of the shares).
What is the penalty if Alzi Construct 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 Alzi Construct Limited 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.