- Companies
- Civil engineering
- Knutsford
- SG Construction and Plant Services Ltd
SG Construction and Plant Services Ltd
- Company number
- 16123657
- Incorporated
- 9 Dec 20241 year trading
- Registered office
- The Kimbles Lady Lane, Mobberley, Knutsford, WA16 7ND
- Nature of business
- Construction of roads and motorways
SG Construction and Plant Services Ltd is a 1-year-old private limited company registered in Knutsford, company number 16123657, one of 16 civil engineering contractors in Knutsford. Companies House shows its accounts as overdue: they were due on 9 September 2026.
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 SG Construction and Plant Services Ltd is registered
The registered office is in Knutsford (WA16), in the Cheshire East local authority area, North West. Show WA16 7ND on a map.
Other trade companies in WA16
- Airmex LtdMachinery repair and installation
- H&H Developments Wilmslow LtdBuilders
- Brighouse Homes Ollerton (Number 2) LtdProperty developers
- Luna Automotive LtdMotor traders
- Cryo Works LimitedCleaning companies
- Pickmere Investments LimitedProperty developers
- HM Builds Group LimitedBuilders
- Lavender Hand Car Wash LtdCleaning companies
What happens if SG Construction and Plant Services Ltd files late
If the accounts reach Companies House today, the late filing penalty is £375 (£750 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 10 Sep 2026 to 9 Oct 2026 | £150 |
| 1 to 3 months late | 10 Oct 2026 to 9 Dec 2026 | £375 |
| 3 to 6 months late | 10 Dec 2026 to 9 Mar 2027 | £750 |
| More than 6 months late | From 10 Mar 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 9 Jun 2027 | £200 |
| 3 months late | 8 Sep 2027 | another £200 |
| 6 months late | 8 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 8 Jun 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
- 16123657
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2024 (1 year ago)
- Registered office
- The Kimbles Lady Lane, Mobberley, Knutsford, WA16 7ND
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 8 June (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 8 December 2025
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 Knutsford
Other active civil engineering contractors registered in Knutsford.
- SGC Civil Engineering Ltd2005
- SL Utility Consulting Ltd2024
- Trackside Operations Ltd2024
- Alamco Projects Ltd2007
- Charles and Platts Ltd2025
- Cummins Utilities Limited2025
- Enca Properties Ltd2015
- FQ Engineering Limited2017
All civil engineering contractors in Knutsford · All trades in Knutsford · Civil engineering across the UK
Frequently asked questions
When are SG Construction and Plant Services Ltd's accounts due?
SG Construction and Plant Services Ltd's accounts were due at Companies House on 9 September 2026 and the register shows them as overdue.
When is SG Construction and Plant 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 8 December 2025, due by 8 December 2026, and one for the period to 8 June 2026, due by 8 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is SG Construction and Plant Services Ltd still trading?
SG Construction and Plant Services Ltd is listed as active on the Companies House register (checked 13 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 SG Construction and Plant Services Ltd do?
SG Construction and Plant Services Ltd is registered under Construction of roads and motorways (SIC 42110).
How old is SG Construction and Plant Services Ltd?
SG Construction and Plant Services Ltd was incorporated on 9 December 2024, 1 year ago.
What is the penalty if SG Construction and Plant 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 SG Construction and Plant Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.