- Companies
- Specialist contractors
- London
- Adronis One Ltd
Adronis One Ltd
- Company number
- 17073573
- Incorporated
- 6 Mar 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other specialised construction activities n.e.c.; Other retail sale not in stores, stalls or markets; Other service activities n.e.c.
Adronis One Ltd is a newly incorporated private limited company registered in London, company number 17073573, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 6 December 2027, and its first CT600 is due at HMRC on 5 March 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Adronis One Ltd is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 2NX on a map.
Other trade companies in EC1V
- Cardiff Electrical Solutions LtdElectricians
- Edemis Construction LtdBuilders
- Zaylan LtdProperty developers
- Pronto Roofing and Construction LtdRoofers
- Instal Systems LtdPlumbers and heating engineers
- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
Shared registered office
2,436 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 Adronis One 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 6 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Dec 2027 to 6 Jan 2028 | £150 |
| 1 to 3 months late | 7 Jan 2028 to 6 Mar 2028 | £375 |
| 3 to 6 months late | 7 Mar 2028 to 6 Jun 2028 | £750 |
| More than 6 months late | From 7 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 17073573
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2026
- Registered office
- 128 City Road, London, EC1V 2NX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Other retail sale not in stores, stalls or markets (SIC 47990)
Other service activities n.e.c. (SIC 96090) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Adt Ltd2026
- Adt Solutions Limited2025
- Advance Building Contractors Ltd2025
- Advanced Ltd2023
- Advanced Maintenance London Ltd2021
- Advanced Property Maintenance Limited2014
- Adventure Playground Engineers Ltd2009
- Adventure Rigging Ltd2026
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Adronis One Ltd's accounts due?
Adronis One Ltd's next accounts are due at Companies House by 6 December 2027 (in 420 days), covering the period to 31 March 2027.
When is Adronis One 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 5 March 2027, due by 5 March 2028, and one for the period to 31 March 2027, due by 31 March 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Adronis One Ltd still trading?
Adronis One 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 Adronis One Ltd do?
Adronis One Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Other retail sale not in stores, stalls or markets (SIC 47990); Other service activities n.e.c. (SIC 96090).
How old is Adronis One Ltd?
Adronis One Ltd was incorporated on 6 March 2026, less than a year ago.
What is the penalty if Adronis One 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 Adronis One 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.