- Companies
- Civil engineering
- Wilmslow
- Key Prep Civils Limited
Key Prep Civils Limited
- Company number
- 17303050
- Incorporated
- 26 Jun 2026
- Registered office
- 97 Alderley Road, Wilmslow, SK9 1PT
- Nature of business
- Construction of roads and motorways
Key Prep Civils Limited is a newly incorporated private limited company registered in Wilmslow, company number 17303050, one of 9 civil engineering contractors in Wilmslow. Its next accounts are due at Companies House on 26 March 2028, and its first CT600 is due at HMRC on 25 June 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 Key Prep Civils Limited is registered
The registered office is in Wilmslow (SK9), in the Cheshire East local authority area, North West. Show SK9 1PT on a map.
Other trade companies in SK9
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- Felix Homes Northwest LimitedBuilders
- Tsa Homes Bedford LtdProperty developers
- Tsa Homes Bridgwater LtdBuilders
- Solace Construct LimitedBuilders
- Solace FM LimitedFacilities management
- Baytree Reserve Shrewbridge LimitedProperty developers
- Thistlewood Properties (Crewe) LtdProperty developers
Shared registered office
43 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 Key Prep Civils Limited 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 26 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Mar 2028 to 26 Apr 2028 | £150 |
| 1 to 3 months late | 27 Apr 2028 to 26 Jun 2028 | £375 |
| 3 to 6 months late | 27 Jun 2028 to 26 Sep 2028 | £750 |
| More than 6 months late | From 27 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17303050
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 June 2026
- Registered office
- 97 Alderley Road, Wilmslow, SK9 1PT
- Nature of business
- Construction of roads and motorways (SIC 42110)
- Year end
- 30 June (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 Wilmslow
Other active civil engineering contractors registered in Wilmslow.
- MMK Civil Engineering Ltd.2007
- Triur Construction UK Ltd2020
- Vogue Construction Limited2022
- Wessex Solutions Ltd2003
- Bimbax Ltd2019
- Buildzone Maintenance Limited2024
- Cumber Lane Partnerships Ltd2015
- John Jenkin Jones Engineering Services Limited2023
All civil engineering contractors in Wilmslow · All trades in Wilmslow · Civil engineering across the UK
Frequently asked questions
When are Key Prep Civils Limited's accounts due?
Key Prep Civils Limited's next accounts are due at Companies House by 26 March 2028 (in 530 days), covering the period to 30 June 2027.
When is Key Prep Civils Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 25 June 2027, due by 25 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Key Prep Civils Limited still trading?
Key Prep Civils Limited 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 Key Prep Civils Limited do?
Key Prep Civils Limited is registered under Construction of roads and motorways (SIC 42110).
How old is Key Prep Civils Limited?
Key Prep Civils Limited was incorporated on 26 June 2026, less than a year ago.
What is the penalty if Key Prep Civils Limited 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 Key Prep Civils Limited 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.