- Companies
- Builders
- St Austell
- Cornerstone Concepts Ltd
Cornerstone Concepts Ltd
- Company number
- 16453654
- Incorporated
- 15 May 20251 year trading
- Registered office
- Tre Wyn, Treverbyn Road, St Austell, Cornwall, PL25 4EW
- Nature of business
- Construction of commercial buildings; Management consultancy activities other than financial management
Cornerstone Concepts Ltd is a 1-year-old private limited company registered in St Austell, company number 16453654, one of 29 building contractors in St Austell. Its next accounts are due at Companies House on 15 February 2027, and its first CT600 is due at HMRC on 14 May 2027.
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 Cornerstone Concepts Ltd is registered
The registered office is in St Austell (PL25), in the Cornwall local authority area, South West. Show PL25 4EW on a map.
Other trade companies in PL25
- Platinum Window Care LimitedCleaning companies
- Aspire Land Property LimitedProperty developers
- Kernow Property Portfolio LtdProperty developers
- Bould Landscapes LimitedLandscapers and gardeners
- Rustic Homes LtdProperty developers
- Rustic Property LtdProperty developers
- Balustrade Solutions Cornwall LimitedInstallers
- R&L Developments Group LtdBuilders
What happens if Cornerstone Concepts 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 15 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 16 Feb 2027 to 15 Mar 2027 | £150 |
| 1 to 3 months late | 16 Mar 2027 to 15 May 2027 | £375 |
| 3 to 6 months late | 16 May 2027 to 15 Aug 2027 | £750 |
| More than 6 months late | From 16 Aug 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
- 16453654
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 May 2025 (1 year ago)
- Registered office
- Tre Wyn, Treverbyn Road, St Austell, Cornwall, PL25 4EW
- Nature of business
- Construction of commercial buildings (SIC 41201)
Management consultancy activities other than financial management (SIC 70229) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 14 May 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in St Austell
Other active building contractors registered in St Austell.
- Cory Lansdowne Estates Ltd2015
- Dingle and Way Building Contractors Ltd2010
- DT Construction South West Ltd2025
- Glen Couchman Building & Carpentry Ltd2019
- Glen Rogers & Sons Limited2008
- Hayden-Sheldon Developments Ltd2024
- J.J.Jones & Sons(ST.Austell)Limited1947
- Jacksons Barn Limited2017
All building contractors in St Austell · All trades in St Austell · Builders across the UK
Frequently asked questions
When are Cornerstone Concepts Ltd's accounts due?
Cornerstone Concepts Ltd's next accounts are due at Companies House by 15 February 2027 (in 126 days), covering the period to 31 May 2026.
When is Cornerstone Concepts 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 14 May 2026, due by 14 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cornerstone Concepts Ltd still trading?
Cornerstone Concepts 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 Cornerstone Concepts Ltd do?
Cornerstone Concepts Ltd is registered under Construction of commercial buildings (SIC 41201); Management consultancy activities other than financial management (SIC 70229).
How old is Cornerstone Concepts Ltd?
Cornerstone Concepts Ltd was incorporated on 15 May 2025, 1 year ago.
What is the penalty if Cornerstone Concepts 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 Cornerstone Concepts 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.