- Company number
- 15817331
- Incorporated
- 3 Jul 20242 years trading
- Registered office
- 3 Coombe Road, London, NW10 0EB
- Nature of business
- Construction of domestic buildings; Demolition; Other building completion and finishing
Astrastone Construction Ltd is a 2-year-old private limited company registered in London, company number 15817331, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 April 2027, and its first CT600 is due at HMRC on 24 July 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 24 July 2025, as filed at Companies House.
Where Astrastone Construction Ltd is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 0EB on a map.
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Also registered at this address
3 other companies use the same registered office as Astrastone Construction Ltd.
- Mavrix Roofing LtdRoofers
- Purestone Worktops LtdInstallers
- Structural Build Engineering LtdBuilders
What happens if Astrastone 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 15817331
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 July 2024 (2 years ago)
- Registered office
- 3 Coombe Road, London, NW10 0EB
- Nature of business
- Construction of domestic buildings (SIC 41202)
Demolition (SIC 43110)
Other building completion and finishing (SIC 43390) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 24 July 2025
- Last confirmation statement
- 2 July 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.
- Astro Builders Ltd2017
- Astro Construct Limited2020
- Astur Construction Ltd2025
- Astute Developments Ltd2004
- Asuo Amass Limited2022
- Asus Building Ltd2025
- Asv Construction Ltd2021
- Asz Group &Co Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Astrastone Construction Ltd's accounts due?
Astrastone Construction Ltd's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Astrastone Construction Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 24 July 2026, due by 24 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Astrastone Construction Ltd still trading?
Astrastone 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 Astrastone Construction Ltd do?
Astrastone Construction Ltd is registered under Construction of domestic buildings (SIC 41202); Demolition (SIC 43110); Other building completion and finishing (SIC 43390).
How old is Astrastone Construction Ltd?
Astrastone Construction Ltd was incorporated on 3 July 2024, 2 years ago.
What is the penalty if Astrastone 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 Astrastone 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.