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- Kay Environment Limited
Company profile · Civil engineering
Kay Environment Limited
Kay Environment Limited is a 1-year-old private limited company registered in London, company number 16429307, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 5 February 2027, and its first CT600 is due at HMRC on 4 May 2027.
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.
Is this your company?
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Where Kay Environment Limited is registered
The registered office is in London (SE28), in the Greenwich local authority area, London. Show SE28 8DD on a map.
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What happens if Kay Environment 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 5 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 6 Feb 2027 to 5 Mar 2027 | £150 |
| 1 to 3 months late | 6 Mar 2027 to 5 May 2027 | £375 |
| 3 to 6 months late | 6 May 2027 to 5 Aug 2027 | £750 |
| More than 6 months late | From 6 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 16429307
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 May 2025 (1 year ago)
- Registered office
- 11 Waterfield Close, London, SE28 8DD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Environmental consulting activities (SIC 74901)
General cleaning of buildings (SIC 81210) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 4 May 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Kaydson Ltd2024
- Kcea Limited2016
- KCR Engineering Ltd2025
- KDL Civil Solutions Ltd2026
- Keanes Limited1970
- Kent Cabling & Data Solutions Ltd2026
- Kentoler Limited2015
- Kernow Power Limited2024
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Kay Environment Limited's accounts due?
Kay Environment Limited's next accounts are due at Companies House by 5 February 2027 (in 116 days), covering the period to 31 May 2026.
When is Kay Environment 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 4 May 2026, due by 4 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Kay Environment Limited still trading?
Kay Environment 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 Kay Environment Limited do?
Kay Environment Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Environmental consulting activities (SIC 74901); General cleaning of buildings (SIC 81210).
How old is Kay Environment Limited?
Kay Environment Limited was incorporated on 5 May 2025, 1 year ago.
What is the penalty if Kay Environment 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 Kay Environment 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.