- Companies
- Groundworks and demolition
- London
- Collis Enviro Ltd
Collis Enviro Ltd
- Company number
- 12246622
- Incorporated
- 7 Oct 20197 years trading
- Registered office
- 71-75 Shelton Street, London, Greater London, WC2H 9JQ
- Nature of business
- Demolition; Site preparation
Collis Enviro Ltd is a 7-year-old private limited company registered in London, company number 12246622, one of 287 groundworks and demolition companies in London. Companies House shows its accounts as overdue: they were due on 31 July 2025.
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 up £44K (+71.9%) on the year before, to -£17K.
- Current assets of £916K against £962K owed within a year: 1.0 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 2 years, 2020 to 2021.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2021 | -£17K | £916K | £962K | 2 | |
| 31 Oct 2020 | -£61K | £333K | £408K | 3 |
Where Collis Enviro Ltd is registered
The registered office is in London (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
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- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 Collis Enviro Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 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 Aug 2025 to 31 Aug 2025 | £150 |
| 1 to 3 months late | 1 Sep 2025 to 31 Oct 2025 | £375 |
| 3 to 6 months late | 1 Nov 2025 to 31 Jan 2026 | £750 |
| More than 6 months late | From 1 Feb 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2025 | £200 |
| 3 months late | 31 Jan 2026 | another £200 |
| 6 months late | 30 Apr 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 2026 | 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
- 12246622
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2019 (7 years ago)
- Registered office
- 71-75 Shelton Street, London, Greater London, WC2H 9JQ
- Nature of business
- Demolition (SIC 43110)
Site preparation (SIC 43120) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2023
- Last confirmation statement
- 3 July 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in London
Other active groundworks and demolition companies registered in London.
- Colorbread11 Ltd2020
- Containers CJW Ltd2025
- Core Site Services Ltd2026
- Cornestone Creations Ltd.2024
- Cortavique Group Ltd2026
- Cosmin Trans Ltd2012
- Cozem Limited2015
- Cusp Management Limited2018
All groundworks and demolition companies in London · All trades in London · Groundworks and demolition across the UK
Frequently asked questions
When are Collis Enviro Ltd's accounts due?
Collis Enviro Ltd's accounts were due at Companies House on 31 July 2025 and the register shows them as overdue.
When is Collis Enviro Ltd's CT600 due?
The CT600 for the period to 31 October 2024 is due at HMRC by 31 October 2025, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2025.
Is Collis Enviro Ltd still trading?
Collis Enviro 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 Collis Enviro Ltd do?
Collis Enviro Ltd is registered under Demolition (SIC 43110); Site preparation (SIC 43120).
How old is Collis Enviro Ltd?
Collis Enviro Ltd was incorporated on 7 October 2019, 7 years ago.
What is the penalty if Collis Enviro 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 Collis Enviro 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.