- Companies
- Civil engineering
- Edgware
- CST Utilities and Groundworks Ltd
CST Utilities and Groundworks Ltd
- Company number
- 12024538
- Incorporated
- 30 May 20197 years trading
- Registered office
- 48 the Chase, Edgware, HA8 5DJ
- Nature of business
- Construction of roads and motorways
CST Utilities and Groundworks Ltd is a 7-year-old private limited company registered in Edgware, company number 12024538, one of 61 civil engineering contractors in Edgware. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £63K (-100%) on the year before, to £2.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- 4 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2 | 4 | |||
| 31 May 2024 | £63K | £89K | £125K | 4 | |
| 31 May 2023 | £60K | £97K | £169K | 4 | |
| 31 May 2022 | £94K | £86K | £41K | 4 | |
| 31 May 2021 | £49K | £66K | £16K | 4 | |
| 31 May 2020 | £29K | £36K | £6,893 | 3 |
Where CST Utilities and Groundworks Ltd is registered
The registered office is in Edgware (HA8), in the Harrow local authority area, London. Show HA8 5DJ on a map.
Other trade companies in HA8
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- Kohli Group Properties LimitedProperty developers
- Brothers Landmark LtdProperty developers
- MS Flooring & Decor LtdFloor and wall tilers
- C&I Building Solutions LtdBuilders
- Dynamic Mobile Tyre LtdMechanics and garages
- Crownline Motors LtdMotor traders
What happens if CST Utilities and 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 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 12024538
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 May 2019 (7 years ago)
- Registered office
- 48 the Chase, Edgware, HA8 5DJ
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 29 May 2026
- Previous names
- C&S Toma Ltd (until 26 Sep 2023)
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 Edgware
Other active civil engineering contractors registered in Edgware.
- CT Decorating & Cleaning Services Ltd2015
- Diadem R Limited2019
- Dmano Limited2022
- Dra Construction Ltd2020
- Europa Associates (UK) Ltd.1997
- Filip Services Limited2017
- Firs Groundworks Limited2012
- Fleex Utilities Ltd2023
All civil engineering contractors in Edgware · All trades in Edgware · Civil engineering across the UK
Frequently asked questions
When are CST Utilities and Groundworks Ltd's accounts due?
CST Utilities and Groundworks Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is CST Utilities and Groundworks Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is CST Utilities and Groundworks Ltd still trading?
CST Utilities and 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 CST Utilities and Groundworks Ltd do?
CST Utilities and Groundworks Ltd is registered under Construction of roads and motorways (SIC 42110).
How old is CST Utilities and Groundworks Ltd?
CST Utilities and Groundworks Ltd was incorporated on 30 May 2019, 7 years ago.
What is the penalty if CST Utilities and 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 CST Utilities and 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.