- Company number
- 16650065
- Incorporated
- 14 Aug 20251 year trading
- Registered office
- 6 Trevithick Close, Truro, TR1 1RZ
- Nature of business
- Construction of domestic buildings
Onshorebuild Limited is a 1-year-old private limited company registered in Truro, company number 16650065, one of 94 building contractors in Truro. Its next accounts are due at Companies House on 14 May 2027, and its first CT600 is due at HMRC on 13 August 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 Onshorebuild Limited is registered
The registered office is in Truro (TR1), in the Cornwall local authority area, South West. Show TR1 1RZ on a map.
Other trade companies in TR1
- Wind Power Maintenance Services LtdMachinery repair and installation
- Treser Landscapes LimitedLandscapers and gardeners
- Alvan’S Painting Inc LtdPainters and decorators
- Acm Rail LtdCivil engineering
- Zest Developers SW LtdProperty developers
- Kernow Smart Repairs LtdMotor traders
- Millers Gardening & General Maintenance LtdLandscapers and gardeners
- JG Industries LtdFinishing trades
Also registered at this address
1 other company uses the same registered office as Onshorebuild Limited.
- SM Auto Tech LimitedMechanics and garages
What happens if Onshorebuild 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 14 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 May 2027 to 14 Jun 2027 | £150 |
| 1 to 3 months late | 15 Jun 2027 to 14 Aug 2027 | £375 |
| 3 to 6 months late | 15 Aug 2027 to 14 Nov 2027 | £750 |
| More than 6 months late | From 15 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16650065
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2025 (1 year ago)
- Registered office
- 6 Trevithick Close, Truro, TR1 1RZ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 13 August 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 Truro
Other active building contractors registered in Truro.
- Opr Plumbing Ltd2025
- Osborn Property Renovations Ltd2022
- Otr Carpentry & Construction Ltd2023
- Peacocks Conversions and Renovations Ltd2024
- PMS Building (Cornwall) Limited2014
- Poltair Housing Ltd2016
- RG Kellow Ltd2007
- Riverrun Construction Ltd2020
All building contractors in Truro · All trades in Truro · Builders across the UK
Frequently asked questions
When are Onshorebuild Limited's accounts due?
Onshorebuild Limited's next accounts are due at Companies House by 14 May 2027 (in 214 days), covering the period to 31 August 2026.
When is Onshorebuild 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 13 August 2026, due by 13 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Onshorebuild Limited still trading?
Onshorebuild 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 Onshorebuild Limited do?
Onshorebuild Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Onshorebuild Limited?
Onshorebuild Limited was incorporated on 14 August 2025, 1 year ago.
What is the penalty if Onshorebuild 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 Onshorebuild 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.