- Companies
- Civil engineering
- London
- Dnnovation Construction Ltd
Dnnovation Construction Ltd
- Company number
- 14245577
- Incorporated
- 20 Jul 20224 years trading
- Registered office
- 3RD Floor Great Titchfield House, 14-18 Great Titchfield Street, London, W1W 8BD
- Nature of business
- Construction of railways and underground railways
Dnnovation Construction Ltd is a 4-year-old private limited company registered in London, company number 14245577, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.
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 £120K (+140.5%) on the year before, to £205K.
- Current assets of £440K against £351K owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £205K | £132K | £440K | £351K | 0 |
| 30 Apr 2024 | £85K | £173K | £376K | £374K | 3 |
| 30 Apr 2023 | £5,877 | £165K | £462K | £508K | 3 |
Where Dnnovation Construction Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 8BD on a map.
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Shared registered office
37 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 Dnnovation Construction 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 31 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 14245577
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 July 2022 (4 years ago)
- Registered office
- 3RD Floor Great Titchfield House, 14-18 Great Titchfield Street, London, W1W 8BD
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 19 July 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.
- Doc Rail Services Ltd2025
- Dok Contracts Limited2025
- Donell TM Ltd2024
- Doutres Ltd2019
- DPF Services Limited2013
- Dragtone Civils UK Ltd2023
- Drain Scope Ltd2025
- Dravonis Group Ltd2026
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Dnnovation Construction Ltd's accounts due?
Dnnovation Construction Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Dnnovation Construction Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Dnnovation Construction Ltd still trading?
Dnnovation Construction 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 Dnnovation Construction Ltd do?
Dnnovation Construction Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Dnnovation Construction Ltd?
Dnnovation Construction Ltd was incorporated on 20 July 2022, 4 years ago.
What is the penalty if Dnnovation Construction 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 Dnnovation Construction 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.