- Companies
- Civil engineering
- Ruislip
- Roadstone Tarmac Ltd
Roadstone Tarmac Ltd
- Company number
- 17164162
- Incorporated
- 17 Apr 2026
- Registered office
- 1-3 Shenley Avenue, Ruislip, HA4 6BP
- Nature of business
- Construction of roads and motorways; Other specialised construction activities n.e.c.
Roadstone Tarmac Ltd is a newly incorporated private limited company registered in Ruislip, company number 17164162, one of 34 civil engineering contractors in Ruislip. Its next accounts are due at Companies House on 17 January 2028, and its first CT600 is due at HMRC on 16 April 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 Roadstone Tarmac Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 6BP on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
Shared registered office
44 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 Roadstone Tarmac 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 17 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jan 2028 to 17 Feb 2028 | £150 |
| 1 to 3 months late | 18 Feb 2028 to 17 Apr 2028 | £375 |
| 3 to 6 months late | 18 Apr 2028 to 17 Jul 2028 | £750 |
| More than 6 months late | From 18 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17164162
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 April 2026
- Registered office
- 1-3 Shenley Avenue, Ruislip, HA4 6BP
- Nature of business
- Construction of roads and motorways (SIC 42110)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 April (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 Ruislip
Other active civil engineering contractors registered in Ruislip.
- Rolw1001 Ltd2026
- S&P Consultancy Ltd2014
- Solace Anchors Ltd2026
- T Kelly & Sons (Plant Hire) Limited1996
- The Construction Services Agency Limited2014
- The Specialist Access Group Ltd2022
- Voltcore Solutions Ltd2025
- WDL Consultants Ltd2023
All civil engineering contractors in Ruislip · All trades in Ruislip · Civil engineering across the UK
Frequently asked questions
When are Roadstone Tarmac Ltd's accounts due?
Roadstone Tarmac Ltd's next accounts are due at Companies House by 17 January 2028 (in 461 days), covering the period to 30 April 2027.
When is Roadstone Tarmac 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 16 April 2027, due by 16 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Roadstone Tarmac Ltd still trading?
Roadstone Tarmac 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 Roadstone Tarmac Ltd do?
Roadstone Tarmac Ltd is registered under Construction of roads and motorways (SIC 42110); Other specialised construction activities n.e.c. (SIC 43999).
How old is Roadstone Tarmac Ltd?
Roadstone Tarmac Ltd was incorporated on 17 April 2026, less than a year ago.
What is the penalty if Roadstone Tarmac 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 Roadstone Tarmac 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.