Company profile · Builders
Astro Construct Limited
Astro Construct Limited is a 6-year-old private limited company registered in London, company number 12817507, 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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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Astro Construct Limited over the years
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 £1,163 (+16.3%) on the year before, to £8,293.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £9,286 against £993 owed within a year: 9.4 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 31 Aug 2025 | £8,293 | £18 | £9,286 | £993 | 0 |
| 31 Aug 2024 | £7,130 | £128 | £8,381 | £1,251 | 0 |
| 31 Aug 2023 | £6,787 | £162 | £8,750 | £1,963 | 0 |
| 31 Aug 2022 | £2,945 | £4,562 | £1,617 | 0 | |
| 31 Aug 2021 | £100 | £100 | 0 |
Where Astro Construct Limited is registered
The registered office is in London (HA0), in the Brent local authority area, London. Show HA0 2TN on a map.
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What happens if Astro Construct 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 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
- 12817507
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 August 2020 (6 years ago)
- Registered office
- 115 Rosebank Avenue, London, Wembley, HA0 2TN
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 16 August 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.
- Astur Construction Ltd2025
- Astute Developments Ltd2004
- Asuo Amass Limited2022
- Asus Building Ltd2025
- Asv Construction Ltd2021
- Asz Group &Co Ltd2026
- At Building Renovation Ltd2024
- At Fine Wood Carpenters Limited2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Astro Construct Limited's accounts due?
Astro Construct Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Astro Construct Limited'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 Astro Construct Limited still trading?
Astro Construct 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 Astro Construct Limited do?
Astro Construct Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Astro Construct Limited?
Astro Construct Limited was incorporated on 17 August 2020, 6 years ago.
What is the penalty if Astro 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 Astro Construct 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.