- Companies
- Civil engineering
- Finchley
- Proven Project (Water) Ltd
Proven Project (Water) Ltd
- Company number
- 16959162
- Incorporated
- 13 Jan 2026
- Registered office
- Office 1 447 High Road, Finchley, London, N12 0AF
- Nature of business
- Construction of utility projects for fluids; Construction of utility projects for electricity and telecommunications; Construction of other civil engineering projects n.e.c.
Proven Project (Water) Ltd is a newly incorporated private limited company registered in Finchley, company number 16959162, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 13 October 2027, and its first CT600 is due at HMRC on 12 January 2028.
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 Proven Project (Water) Ltd is registered
The registered office is in Finchley (N12), in the Barnet local authority area, London. Show N12 0AF on a map.
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Also registered at this address
1 other company uses the same registered office as Proven Project (Water) Ltd.
- Proven Project (District Heating) LtdCivil engineering
What happens if Proven Project (Water) 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 13 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 14 Oct 2027 to 13 Nov 2027 | £150 |
| 1 to 3 months late | 14 Nov 2027 to 13 Jan 2028 | £375 |
| 3 to 6 months late | 14 Jan 2028 to 13 Apr 2028 | £750 |
| More than 6 months late | From 14 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16959162
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2026
- Registered office
- Office 1 447 High Road, Finchley, London, N12 0AF
- Nature of business
- Construction of utility projects for fluids (SIC 42210)
Construction of utility projects for electricity and telecommunications (SIC 42220)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 January (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 Finchley
Other active civil engineering contractors registered in Finchley.
- Siteworks Connect Limited2023
- Empress Building Centre Limited1989
- Proven Project (District Heating) Ltd2017
All civil engineering contractors in Finchley · All trades in Finchley · Civil engineering across the UK
Frequently asked questions
When are Proven Project (Water) Ltd's accounts due?
Proven Project (Water) Ltd's next accounts are due at Companies House by 13 October 2027 (in 365 days), covering the period to 31 January 2027.
When is Proven Project (Water) 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 12 January 2027, due by 12 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Proven Project (Water) Ltd still trading?
Proven Project (Water) 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 Proven Project (Water) Ltd do?
Proven Project (Water) Ltd is registered under Construction of utility projects for fluids (SIC 42210); Construction of utility projects for electricity and telecommunications (SIC 42220); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Proven Project (Water) Ltd?
Proven Project (Water) Ltd was incorporated on 13 January 2026, less than a year ago.
What is the penalty if Proven Project (Water) 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 Proven Project (Water) 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.