- Companies
- Civil engineering
- Covent Garden
- Hy Eng Ltd
Hy Eng Ltd
- Company number
- 16633122
- Incorporated
- 6 Aug 20251 year trading
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Construction of roads and motorways; Construction of railways and underground railways; Construction of utility projects for electricity and telecommunications
Hy Eng Ltd is a 1-year-old private limited company registered in Covent Garden, company number 16633122, one of 132 civil engineering contractors in Covent Garden. Its next accounts are due at Companies House on 6 May 2027, and its first CT600 is due at HMRC on 5 August 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.
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Where Hy Eng Ltd is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
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- 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 Hy Eng 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 May 2027 to 6 Jun 2027 | £150 |
| 1 to 3 months late | 7 Jun 2027 to 6 Aug 2027 | £375 |
| 3 to 6 months late | 7 Aug 2027 to 6 Nov 2027 | £750 |
| More than 6 months late | From 7 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16633122
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 August 2025 (1 year ago)
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Construction of roads and motorways (SIC 42110)
Construction of railways and underground railways (SIC 42120)
Construction of utility projects for electricity and telecommunications (SIC 42220) - Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
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 Covent Garden
Other active civil engineering contractors registered in Covent Garden.
- Inrail Consult Ltd2026
- International Construction Management Consultancy Limited2024
- Jadena Associates Limited2017
- JCB Consulting Ltd2021
- JCM Design & Construction Limited2017
- JDD Engineering Services Ltd2024
- Johnsons TM Ltd2025
- K Limited Ltd2026
All civil engineering contractors in Covent Garden · All trades in Covent Garden · Civil engineering across the UK
Frequently asked questions
When are Hy Eng Ltd's accounts due?
Hy Eng Ltd's next accounts are due at Companies House by 6 May 2027 (in 206 days), covering the period to 31 August 2026.
When is Hy Eng 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 August 2026, due by 5 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Hy Eng Ltd still trading?
Hy Eng 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 Hy Eng Ltd do?
Hy Eng Ltd is registered under Construction of roads and motorways (SIC 42110); Construction of railways and underground railways (SIC 42120); Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Hy Eng Ltd?
Hy Eng Ltd was incorporated on 6 August 2025, 1 year ago.
What is the penalty if Hy Eng 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 Hy Eng 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.