- Company number
- 11091358
- Incorporated
- 1 Dec 20178 years trading
- Registered office
- Docklands Business Centre, 10 - 16 Tiller Road, London, E14 8PX
- Nature of business
- Construction of domestic buildings
Astro Builders Ltd is a 8-year-old private limited company registered in London, company number 11091358, one of 12,075 building contractors in London. 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 down £2,800 (-38.8%) on the year before, to £4,417.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | £4,417 | £16K | 0 | ||
| 31 Dec 2023 | £7,217 | £13K | 0 | ||
| 31 Dec 2022 | -£7,217 | £1,423 | £0 | 0 | |
| 31 Dec 2021 | £503 | £2 | £22K | £51K | 0 |
| 31 Dec 2020 | £7,703 | £38K | £746 | 0 | |
| 31 Dec 2019 | £6,791 | £18K | £1,414 | 0 | |
| 31 Dec 2018 | £763 | £155 | £1,880 | £1,117 | 0 |
Who runs and owns Astro Builders Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| R*** R*** | Director | Dec 2017 |
| R*** R*** | Secretary | Dec 2017 |
Person with significant control
Where Astro Builders Ltd is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 8PX on a map.
Other trade companies in E14
- Clarke & Lloyds Technologies LtdSpecialist contractors
- London Dev Grays LimitedProperty developers
- London Dev Sittingbourne LimitedProperty developers
- London Dev Dagenham LimitedProperty developers
- JK Motor Vehicles LtdMotor traders
- Eilunio LtdProperty developers
- Gasi Cleaning Co LtdCleaning companies
- Lustrouk LimitedCleaning companies
Also registered at this address
5 other companies use the same registered office as Astro Builders Ltd.
- Baltic Staff LtdFinishing trades
- Capital Car Automotive LimitedMotor traders
- Ezoligencia LtdCleaning companies
- Gursikh Construction LtdBuilders
- The Bearded Builderss LimitedBuilders
What happens if Astro Builders Ltd 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
- 11091358
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 December 2017 (8 years ago)
- Registered office
- Docklands Business Centre, 10 - 16 Tiller Road, London, E14 8PX
- 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
- 30 November 2025
- Previous names
- Astro Plumbing and Heating Ltd (until 15 Oct 2019)
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 Construct Limited2020
- Astur Construction Ltd2025
- Astute Developments Ltd2004
- Asuo Amass Limited2022
- Asus Building Ltd2025
- Asv Construction Ltd2021
- Asz Group &Co Ltd2026
- At Building Renovation Ltd2024
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Astro Builders Ltd's accounts due?
Astro Builders Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Astro Builders Ltd'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 Astro Builders Ltd still trading?
Astro Builders Ltd 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 Astro Builders Ltd do?
Astro Builders Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Astro Builders Ltd?
Astro Builders Ltd was incorporated on 1 December 2017, 8 years ago.
Who runs Astro Builders Ltd?
Astro Builders Ltd has 1 active director, the longest-serving appointed in Dec 2017. Their names and service addresses are on the Companies House register.
Who owns Astro Builders Ltd?
One person or company has significant control of Astro Builders Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Astro Builders 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 Astro Builders Ltd 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.