- Company number
- 17310258
- Incorporated
- 30 Jun 2026
- Registered office
- The Vertical Barn, Applegarth Farm Headley Road, Grayshott, Hindhead, GU26 6JL
- Nature of business
- Construction of commercial buildings; Data processing, hosting and related activities
Thornkeep Defence Limited is a newly incorporated private limited company registered in Hindhead, company number 17310258, one of 10 building contractors in Hindhead. Its next accounts are due at Companies House on 31 March 2028, and its first CT600 is due at HMRC on 29 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 Thornkeep Defence Limited is registered
The registered office is in Hindhead (GU26), in the East Hampshire local authority area, South East. Show GU26 6JL on a map.
Other trade companies in GU26
- JL Renewables LtdElectricians
- GTC Construction LtdJoiners and carpenters
- Loring Electrical LtdElectricians
- No.2 the Vale (Churt) LtdProperty developers
- MW Property Works LtdFinishing trades
- T P Chimney Sweeps LtdCleaning companies
- Alpus Lime Developments LtdProperty developers
- Blaq Cat UK LtdProperty developers
Also registered at this address
1 other company uses the same registered office as Thornkeep Defence Limited.
- Blaq Cat UK LtdProperty developers
What happens if Thornkeep Defence 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 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 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
- 17310258
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 June 2026
- Registered office
- The Vertical Barn, Applegarth Farm Headley Road, Grayshott, Hindhead, GU26 6JL
- Nature of business
- Construction of commercial buildings (SIC 41201)
Data processing, hosting and related activities (SIC 63110) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
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 Hindhead
Other active building contractors registered in Hindhead.
- Aa Properties and Construction Ltd2016
- Ashbriar Limited1992
- G&B Building Construction Ltd2025
- H10 Construction Ltd2022
- Infinity Projects Group Ltd2016
- Jam Carpentry Ltd2020
- P Withey Limited2011
- Robertson (Priorsfield) Ltd2024
All building contractors in Hindhead · All trades in Hindhead · Builders across the UK
Frequently asked questions
When are Thornkeep Defence Limited's accounts due?
Thornkeep Defence Limited's next accounts are due at Companies House by 31 March 2028 (in 536 days), covering the period to 30 June 2027.
When is Thornkeep Defence 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 29 June 2027, due by 29 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 Thornkeep Defence Limited still trading?
Thornkeep Defence 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 Thornkeep Defence Limited do?
Thornkeep Defence Limited is registered under Construction of commercial buildings (SIC 41201); Data processing, hosting and related activities (SIC 63110).
How old is Thornkeep Defence Limited?
Thornkeep Defence Limited was incorporated on 30 June 2026, less than a year ago.
What is the penalty if Thornkeep Defence 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 Thornkeep Defence 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.