- Companies
- Civil engineering
- London
- Rock Consulting Services Ltd
Rock Consulting Services Ltd
- Company number
- 16244834
- Incorporated
- 11 Feb 20251 year trading
- Registered office
- 237 Regents Park Road, London, N3 3LF
- Nature of business
- Construction of railways and underground railways
Rock Consulting Services Ltd is a 1-year-old private limited company registered in London, company number 16244834, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 11 November 2026, and its first CT600 is due at HMRC on 10 February 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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Who runs and owns Rock Consulting Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| I*** A*** | Director | Feb 2025 |
Person with significant control
Where Rock Consulting Services Ltd is registered
The registered office is in London (N3), in the Barnet local authority area, London. Show N3 3LF on a map.
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- Pure Plumbing Pros LimitedPlumbers and heating engineers
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Also registered at this address
2 other companies use the same registered office as Rock Consulting Services Ltd.
- Able Facilities LtdCleaning companies
- Stubel Airconditioning LtdMachinery repair and installation
What happens if Rock Consulting Services 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 11 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Nov 2026 to 11 Dec 2026 | £150 |
| 1 to 3 months late | 12 Dec 2026 to 11 Feb 2027 | £375 |
| 3 to 6 months late | 12 Feb 2027 to 11 May 2027 | £750 |
| More than 6 months late | From 12 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16244834
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 February 2025 (1 year ago)
- Registered office
- 237 Regents Park Road, London, N3 3LF
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 February 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.
- Rockroad Construction Ltd2026
- Rodh Utilities Ltd2019
- Roha Construct Ltd2014
- Rohy Limited2018
- Rom TM Ltd2025
- Roman Building Ltd2021
- Roohii Limited2023
- Rope and Rail Solutions Ltd2024
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Rock Consulting Services Ltd's accounts due?
Rock Consulting Services Ltd's next accounts are due at Companies House by 11 November 2026 (in 29 days), covering the period to 28 February 2026.
When is Rock Consulting Services 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 10 February 2026, due by 10 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Rock Consulting Services Ltd still trading?
Rock Consulting Services 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 Rock Consulting Services Ltd do?
Rock Consulting Services Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Rock Consulting Services Ltd?
Rock Consulting Services Ltd was incorporated on 11 February 2025, 1 year ago.
Who runs Rock Consulting Services Ltd?
Rock Consulting Services Ltd has 1 active director, the longest-serving appointed in Feb 2025. Their names and service addresses are on the Companies House register.
Who owns Rock Consulting Services Ltd?
One person or company has significant control of Rock Consulting Services Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Rock Consulting Services 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 Rock Consulting Services 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.