- Companies
- Property developers
- Betchworth
- Thameside House Ltd
Thameside House Ltd
- Company number
- 16867345
- Incorporated
- 20 Nov 2025
- Registered office
- Buckland Lodge Dungates Lane, Buckland, Betchworth, RH3 7BD
- Nature of business
- Development of building projects
Thameside House Ltd is a newly incorporated private limited company registered in Betchworth, company number 16867345, one of 12 property development companies in Betchworth. Its next accounts are due at Companies House on 20 August 2027, and its first CT600 is due at HMRC on 19 November 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 Thameside House Ltd is registered
The registered office is in Betchworth (RH3), in the Mole Valley local authority area, South East. Show RH3 7BD on a map.
Other trade companies in RH3
- Kha Blue LtdProperty developers
- Cotterstock Lea LimitedSpecialist contractors
- Oakstone Holdings LimitedProperty developers
- Masterfix Scaffolding LimitedScaffolders
- TJX Construction LtdBuilders
- Williams Arboricultural Services LtdLandscapers and gardeners
- Hambledon House LtdProperty developers
- KC Carriages LtdMotor traders
Also registered at this address
9 other companies use the same registered office as Thameside House Ltd.
- Acorn Blue 2 LtdProperty developers
- Acorn Blue LtdProperty developers
- Bluecourt Properties LimitedProperty developers
- Bluecourt Se25 LtdProperty developers
- Carlton Blue LtdBuilders
- CK Blue 7 LtdBuilders
- Hambledon House LtdProperty developers
- Kha Blue LtdProperty developers
- Scythian Properties LtdProperty developers
What happens if Thameside House 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 20 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Aug 2027 to 20 Sep 2027 | £150 |
| 1 to 3 months late | 21 Sep 2027 to 20 Nov 2027 | £375 |
| 3 to 6 months late | 21 Nov 2027 to 20 Feb 2028 | £750 |
| More than 6 months late | From 21 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16867345
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2025
- Registered office
- Buckland Lodge Dungates Lane, Buckland, Betchworth, RH3 7BD
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
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 Betchworth
Other active property development companies registered in Betchworth.
- Acorn Blue 2 Ltd2023
- Acorn Blue Ltd2022
- Bluecourt Properties Limited1999
- Bluecourt Se25 Ltd2021
- Emiror Properties Ltd2023
- Hambledon House Ltd2024
- Hunt4 Construction Services Ltd2017
- Kha Blue Ltd2026
All property development companies in Betchworth · All trades in Betchworth · Property developers across the UK
Frequently asked questions
When are Thameside House Ltd's accounts due?
Thameside House Ltd's next accounts are due at Companies House by 20 August 2027 (in 312 days), covering the period to 30 November 2026.
When is Thameside House 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 19 November 2026, due by 19 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Thameside House Ltd still trading?
Thameside House 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 Thameside House Ltd do?
Thameside House Ltd is registered under Development of building projects (SIC 41100).
How old is Thameside House Ltd?
Thameside House Ltd was incorporated on 20 November 2025, less than a year ago.
What is the penalty if Thameside House 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 Thameside House 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.