- Company number
- 13687917
- Incorporated
- 19 Oct 20214 years trading
- Registered office
- International House, 36-38 Cornhill, London, EC3V 3NG
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Wired telecommunications activities; Information technology consultancy activities
Caluxon Group Limited is a 4-year-old private limited company registered in London, company number 13687917, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 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 £16K (-99.7%) on the year before, to £43.
- Current assets of £138K against £132K owed within a year: 1.0 times cover.
- 3 employees on average, up from 0 the year before.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £43 | £138K | £132K | 3 | |
| 31 Oct 2023 | £16K | £73K | £52K | 0 | |
| 31 Oct 2022 | £22K | £45K | £18K | 0 |
Where Caluxon Group Limited is registered
The registered office is in London (EC3V), in the City of London local authority area, London. Show EC3V 3NG on a map.
Other trade companies in EC3V
- Rekondition LtdRepair services
- Revora Cleaning & Hygiene Solutions LtdCleaning companies
- Kingston Leeds LimitedProperty developers
- Riverside Cleaning Group LtdCleaning companies
- Milman Services LtdInstallers
- F and F Electrical Services LtdElectricians
- Lilyame LimitedProperty developers
- Truewatt LtdElectricians
Also registered at this address
17 other companies use the same registered office as Caluxon Group Limited.
- Beh Interiors LimitedFinishing trades
- Capital Hiu Engineers LimitedPlumbers and heating engineers
- Clickauto LimitedMotor traders
- Elite Engineers LtdElectricians
- Fieldbase Estate LimitedProperty developers
- Hak Projects LimitedPlumbers and heating engineers
- KS Roof Master LimitedBuilders
- Lambo-Car LtdMechanics and garages
- Mge Facilities LtdBuilders
- Mgu Construction LtdFinishing trades
- MP Gestion LtdCivil engineering
- Nigel Legge Associates LimitedCivil engineering
- Property and Development Consultants LtdProperty developers
- Seven States LimitedProperty developers
- Source Int HQ LtdElectricians
- Switchd LtdCivil engineering
- Yaojiang Construction Engineering LtdSpecialist contractors
What happens if Caluxon Group 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13687917
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 October 2021 (4 years ago)
- Registered office
- International House, 36-38 Cornhill, London, EC3V 3NG
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Wired telecommunications activities (SIC 61100)
Information technology consultancy activities (SIC 62020) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 18 October 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.
- Cambria Project Management Limited2003
- Cambridge Group Ltd2025
- Camden Projects Ltd2025
- Camel Sree Construction Limited2026
- Cameleon Group Ltd2022
- Camillo Construction Ltd2024
- Campbells Construction Ltd2024
- Camrose Construction Limited2019
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Caluxon Group Limited's accounts due?
Caluxon Group Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Caluxon Group Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Caluxon Group Limited still trading?
Caluxon Group 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 Caluxon Group Limited do?
Caluxon Group Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Wired telecommunications activities (SIC 61100); Information technology consultancy activities (SIC 62020).
How old is Caluxon Group Limited?
Caluxon Group Limited was incorporated on 19 October 2021, 4 years ago.
What is the penalty if Caluxon Group 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 Caluxon Group 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.