- Companies
- Property developers
- London
- Alstruct Ltd
Alstruct Ltd
- Company number
- 12557067
- Incorporated
- 15 Apr 20206 years trading
- Registered office
- 11 Queen Mary Avenue, London, E18 2FG
- Nature of business
- Development of building projects; Construction of other civil engineering projects n.e.c.; Other building completion and finishing; Other specialised construction activities n.e.c.
Alstruct Ltd is a 6-year-old private limited company registered in London, company number 12557067, 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 up £32K (+40.2%) on the year before, to £112K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £212K against £122K owed within a year: 1.7 times cover.
- 7 employees on average, up from 5 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £112K | £212K | £122K | 7 | |
| 30 Apr 2024 | £80K | £95K | £42K | 5 | |
| 30 Apr 2023 | £24K | £46K | £22K | 3 | |
| 30 Apr 2022 | £998 | £1,409 | £411 | 1 | |
| 30 Apr 2021 | -£13 | £100 | £113 | 0 |
Where Alstruct Ltd is registered
The registered office is in London (E18), in the Redbridge local authority area, London. Show E18 2FG on a map.
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What happens if Alstruct 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 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
- 12557067
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 April 2020 (6 years ago)
- Registered office
- 11 Queen Mary Avenue, London, E18 2FG
- Nature of business
- Development of building projects (SIC 41100)
Construction of other civil engineering projects n.e.c. (SIC 42990)
Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 5 April 2026
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.
- Altara Property Group Ltd2026
- Altec Consultants Ltd2020
- Altesca Clean Energy Limited2025
- Altin Pyramid Ltd2025
- Altiora Infrastructure & Sports Development Africa Ltd2026
- Altius 24CHT Limited2026
- Altius Real Estate Limited2023
- Alto Residential Limited2016
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Alstruct Ltd's accounts due?
Alstruct Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Alstruct Ltd'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 Alstruct Ltd still trading?
Alstruct 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 Alstruct Ltd do?
Alstruct Ltd is registered under Development of building projects (SIC 41100); Construction of other civil engineering projects n.e.c. (SIC 42990); Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999).
How old is Alstruct Ltd?
Alstruct Ltd was incorporated on 15 April 2020, 6 years ago.
What is the penalty if Alstruct 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 Alstruct 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.