- Companies
- Property developers
- Truro
- Trethellan Estates 1 Limited
Trethellan Estates 1 Limited
- Company number
- 12799745
- Incorporated
- 7 Aug 20206 years trading
- Registered office
- Lowin House, Tregolls Road, Truro, Cornwall, TR1 2NA
- Nature of business
- Development of building projects
Trethellan Estates 1 Limited is a 6-year-old private limited company registered in Truro, company number 12799745, one of 156 property development companies in Truro. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £1,832 (-2.6%) on the year before, to £70K.
- Net assets rose in 0 of 4 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £70K | £30 | £4,454 | 1 | |
| 30 Jun 2024 | £71K | £29 | £2,200 | 1 | |
| 30 Jun 2023 | £75K | £16 | £2,200 | 1 | |
| 30 Jun 2022 | £78K | £2,000 | £30K | 1 | |
| 31 Mar 2021 | £79K | £48K | £750 | 1 |
Where Trethellan Estates 1 Limited is registered
The registered office is in Truro (TR1), in the Cornwall local authority area, South West. Show TR1 2NA 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
20 other companies use the same registered office as Trethellan Estates 1 Limited.
- Blue Fin Yachts LtdMachinery repair and installation
- C Johnson Carpentry and Joinery LimitedJoiners and carpenters
- Cornwall Scaffolding LtdScaffolders
- Danver Plumbing & Heating LimitedPlumbers and heating engineers
- DCH (Cornwall 1) LtdProperty developers
- DCH (Cornwall 2) LtdProperty developers
- Harva Developments LtdProperty developers
- Lake Inns & Leisure LimitedBuilders
- Molwin Estates LimitedProperty developers
- P Perryman & Sons LimitedMotor traders
- PCM Real Estate LimitedSpecialist contractors
- Perryman Leisure Cornwall LtdProperty developers
- Sandy Lodge Developments LimitedProperty developers
- Spotless Cleaning Cornwall LimitedCleaning companies
- Tamar Hotel Supplies LimitedFacilities management
- Technical Electrical Engineering LimitedElectricians
- Tidal Reach Construction LimitedBuilders
- Trethellan Estates 2 LimitedProperty developers
- Trethellan Estates 3 LimitedProperty developers
- Treverran Homes LimitedBuilders
What happens if Trethellan Estates 1 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 12799745
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 August 2020 (6 years ago)
- Registered office
- Lowin House, Tregolls Road, Truro, Cornwall, TR1 2NA
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 5 August 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Truro
Other active property development companies registered in Truro.
- Trethellan Estates 2 Limited2022
- Trethellan Estates 3 Limited2024
- Truro Development Company Ltd2019
- TWP Property Investors & Developers Ltd2026
- Verto Construction Ltd2012
- Verto Homes Ltd2010
- Verto Strategic Land Ltd2022
- Vespa Cornwall Developments Ltd2022
All property development companies in Truro · All trades in Truro · Property developers across the UK
Frequently asked questions
When are Trethellan Estates 1 Limited's accounts due?
Trethellan Estates 1 Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Trethellan Estates 1 Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Trethellan Estates 1 Limited still trading?
Trethellan Estates 1 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 Trethellan Estates 1 Limited do?
Trethellan Estates 1 Limited is registered under Development of building projects (SIC 41100).
How old is Trethellan Estates 1 Limited?
Trethellan Estates 1 Limited was incorporated on 7 August 2020, 6 years ago.
What is the penalty if Trethellan Estates 1 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 Trethellan Estates 1 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.