- Companies
- Civil engineering
- Carlisle
- R C Williams Groundworks Ltd
R C Williams Groundworks Ltd
- Company number
- 15689188
- Incorporated
- 29 Apr 20242 years trading
- Registered office
- 19 Speckled Wood Drive, Carlisle, Cumbria, CA1 3RD
- Nature of business
- Construction of other civil engineering projects n.e.c.
R C Williams Groundworks Ltd is a 2-year-old private limited company registered in Carlisle, company number 15689188, one of 48 civil engineering contractors in Carlisle. Its next accounts are due at Companies House on 28 January 2027, and the CT600 for the period to 28 April 2026 is due at HMRC on 28 April 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 April 2025, as filed at Companies House.
Where R C Williams Groundworks Ltd is registered
The registered office is in Carlisle (CA1), in the Cumberland local authority area, North West. Show CA1 3RD on a map.
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What happens if R C Williams Groundworks 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 28 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Jan 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 28 Apr 2027 | £375 |
| 3 to 6 months late | 29 Apr 2027 to 28 Jul 2027 | £750 |
| More than 6 months late | From 29 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Apr 2027 | £200 |
| 3 months late | 28 Jul 2027 | another £200 |
| 6 months late | 28 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 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
- 15689188
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2024 (2 years ago)
- Registered office
- 19 Speckled Wood Drive, Carlisle, Cumbria, CA1 3RD
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 28 April 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 Carlisle
Other active civil engineering contractors registered in Carlisle.
- Reiver Reinstatement Limited2018
- RG Civil Engineering and Surveying Ltd2024
- S Dinwoodie Contractors Limited2006
- Sire Contracting Ltd2024
- SMB Site Services Limited2014
- Ste Forster Ltd2019
- Steve Ker TM Ltd2024
- Straits1183 Limited2025
All civil engineering contractors in Carlisle · All trades in Carlisle · Civil engineering across the UK
Frequently asked questions
When are R C Williams Groundworks Ltd's accounts due?
R C Williams Groundworks Ltd's next accounts are due at Companies House by 28 January 2027 (in 107 days), covering the period to 28 April 2026.
When is R C Williams Groundworks Ltd's CT600 due?
The CT600 for the period to 28 April 2026 is due at HMRC by 28 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 January 2027.
Is R C Williams Groundworks Ltd still trading?
R C Williams Groundworks 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 R C Williams Groundworks Ltd do?
R C Williams Groundworks Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is R C Williams Groundworks Ltd?
R C Williams Groundworks Ltd was incorporated on 29 April 2024, 2 years ago.
What is the penalty if R C Williams Groundworks 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 R C Williams Groundworks 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.