- Companies
- Civil engineering
- Plymouth
- Extreme Groundwork’S SW Ltd
Extreme Groundwork’S SW Ltd
- Company number
- 17054749
- Incorporated
- 25 Feb 2026
- Registered office
- 5 ST. Keverne Place, Plymouth, PL2 3TB
- Nature of business
- Construction of other civil engineering projects n.e.c.
Extreme Groundwork’S SW Ltd is a newly incorporated private limited company registered in Plymouth, company number 17054749, one of 41 civil engineering contractors in Plymouth. Its next accounts are due at Companies House on 25 November 2027, and its first CT600 is due at HMRC on 24 February 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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Who runs and owns Extreme Groundwork’S SW Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| T*** A*** | Director | Feb 2026 |
Person with significant control
Where Extreme Groundwork’S SW Ltd is registered
The registered office is in Plymouth (PL2), in the Plymouth local authority area, South West. Show PL2 3TB on a map.
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What happens if Extreme Groundwork’S SW 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 25 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Nov 2027 to 25 Dec 2027 | £150 |
| 1 to 3 months late | 26 Dec 2027 to 25 Feb 2028 | £375 |
| 3 to 6 months late | 26 Feb 2028 to 25 May 2028 | £750 |
| More than 6 months late | From 26 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17054749
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 2026
- Registered office
- 5 ST. Keverne Place, Plymouth, PL2 3TB
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 February (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 Plymouth
Other active civil engineering contractors registered in Plymouth.
- Ferati Limited2010
- First Choice Metalwork South West Limited2020
- Gala Swimming Pools Limited2019
- Global Pipelines & Civil Engineering Ltd2025
- Go Mam Limited2023
- Groundwork Solutions (SW) Ltd2019
- Hydro Environmental Limited1996
- Hymec Investments Ltd2015
All civil engineering contractors in Plymouth · All trades in Plymouth · Civil engineering across the UK
Frequently asked questions
When are Extreme Groundwork’S SW Ltd's accounts due?
Extreme Groundwork’S SW Ltd's next accounts are due at Companies House by 25 November 2027 (in 408 days), covering the period to 28 February 2027.
When is Extreme Groundwork’S SW 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 24 February 2027, due by 24 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Extreme Groundwork’S SW Ltd still trading?
Extreme Groundwork’S SW 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 Extreme Groundwork’S SW Ltd do?
Extreme Groundwork’S SW Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Extreme Groundwork’S SW Ltd?
Extreme Groundwork’S SW Ltd was incorporated on 25 February 2026, less than a year ago.
Who runs Extreme Groundwork’S SW Ltd?
Extreme Groundwork’S SW Ltd has 1 active director, the longest-serving appointed in Feb 2026. Their names and service addresses are on the Companies House register.
Who owns Extreme Groundwork’S SW Ltd?
One person or company has significant control of Extreme Groundwork’S SW Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Extreme Groundwork’S SW 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 Extreme Groundwork’S SW 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.