- Companies
- Specialist contractors
- St Austell
- Celtic Stone & Conservation Ltd
Celtic Stone & Conservation Ltd
- Company number
- 16361930
- Incorporated
- 2 Apr 20251 year trading
- Registered office
- ST Denys House, 22 East Hill, St Austell, Cornwall, PL25 4TR
- Nature of business
- Other specialised construction activities n.e.c.
Celtic Stone & Conservation Ltd is a 1-year-old private limited company registered in St Austell, company number 16361930, one of 8 specialist construction companies in St Austell. Its next accounts are due at Companies House on 2 January 2027, and its first CT600 is due at HMRC on 1 April 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 Celtic Stone & Conservation Ltd is registered
The registered office is in St Austell (PL25), in the Cornwall local authority area, South West. Show PL25 4TR 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
Also registered at this address
21 other companies use the same registered office as Celtic Stone & Conservation Ltd.
- Askbs LimitedJoiners and carpenters
- Cornwall Damp-Proofing LtdInstallers
- D and D Plastering LtdPlasterers
- DM Flooring LtdFloor and wall tilers
- G.Barnes LtdPlumbers and heating engineers
- Hanbury Grange Homes LimitedProperty developers
- J B Hill Motor Mechanic LimitedMechanics and garages
- JLK Builders LimitedBuilders
- Kernowek Gardeners LtdLandscapers and gardeners
- KP & Sons Transport LtdMechanics and garages
- Long Ash Service Station LimitedMotor traders
- Mac Construction (Cornwall) LimitedBuilders
- Mal-VW LimitedMechanics and garages
- Pro-Electric LimitedElectricians
- Rad Construction LtdBuilders
- Sam Rossi LimitedProperty developers
- Steve Drury Kitchens LimitedInstallers
- T C J Osborne LimitedMechanics and garages
- Tide Property Cornwall LimitedProperty developers
- Tidy Ladybird Cleaning Service LtdCleaning companies
- TMS (Technical Solutions) LimitedMotor traders
What happens if Celtic Stone & Conservation 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 2 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Jan 2027 to 2 Feb 2027 | £150 |
| 1 to 3 months late | 3 Feb 2027 to 2 Apr 2027 | £375 |
| 3 to 6 months late | 3 Apr 2027 to 2 Jul 2027 | £750 |
| More than 6 months late | From 3 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16361930
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 April 2025 (1 year ago)
- Registered office
- ST Denys House, 22 East Hill, St Austell, Cornwall, PL25 4TR
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 1 April 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in St Austell
Other active specialist construction companies registered in St Austell.
- Cornwall Construction Services Ltd2021
- In2Build Limited2009
- Keith Cole Carpentry Limited2014
- Kestrel Specialist Handrail Systems Ltd2013
- KWS Group Limited2023
- NLC Developments Limited2014
- Apex Pool Engineers Limited2007
All specialist construction companies in St Austell · All trades in St Austell · Specialist contractors across the UK
Frequently asked questions
When are Celtic Stone & Conservation Ltd's accounts due?
Celtic Stone & Conservation Ltd's next accounts are due at Companies House by 2 January 2027 (in 81 days), covering the period to 30 April 2026.
When is Celtic Stone & Conservation 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 1 April 2026, due by 1 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Celtic Stone & Conservation Ltd still trading?
Celtic Stone & Conservation 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 Celtic Stone & Conservation Ltd do?
Celtic Stone & Conservation Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Celtic Stone & Conservation Ltd?
Celtic Stone & Conservation Ltd was incorporated on 2 April 2025, 1 year ago.
What is the penalty if Celtic Stone & Conservation 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 Celtic Stone & Conservation 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.