- Company number
- 16974340
- Incorporated
- 20 Jan 2026
- Registered office
- 17 Priestlands Park Road, Sidcup, DA15 7HR
- Nature of business
- Construction of domestic buildings
BTH Construction Ltd is a newly incorporated private limited company registered in Sidcup, company number 16974340, one of 117 building contractors in Sidcup. Its next accounts are due at Companies House on 20 October 2027, and its first CT600 is due at HMRC on 19 January 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 BTH Construction Ltd is registered
The registered office is in Sidcup (DA15), in the Bexley local authority area, London. Show DA15 7HR on a map.
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- First Choice Cars LDN LtdMotor traders
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What happens if BTH Construction 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Oct 2027 to 20 Nov 2027 | £150 |
| 1 to 3 months late | 21 Nov 2027 to 20 Jan 2028 | £375 |
| 3 to 6 months late | 21 Jan 2028 to 20 Apr 2028 | £750 |
| More than 6 months late | From 21 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 16974340
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 January 2026
- Registered office
- 17 Priestlands Park Road, Sidcup, DA15 7HR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 January (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 Sidcup
Other active building contractors registered in Sidcup.
- Buildall Ltd2023
- Buildfx Limited2015
- Burt and Travica Limited1980
- Carpentry Co - Developments Limited2020
- CDL Interiors Ltd2024
- Christopher James Limited2014
- Cliffords Home Improvements Ltd2024
- CLM Fire Protection Limited2019
All building contractors in Sidcup · All trades in Sidcup · Builders across the UK
Frequently asked questions
When are BTH Construction Ltd's accounts due?
BTH Construction Ltd's next accounts are due at Companies House by 20 October 2027 (in 373 days), covering the period to 31 January 2027.
When is BTH Construction 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 January 2027, due by 19 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is BTH Construction Ltd still trading?
BTH Construction 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 BTH Construction Ltd do?
BTH Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is BTH Construction Ltd?
BTH Construction Ltd was incorporated on 20 January 2026, less than a year ago.
What is the penalty if BTH Construction 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 BTH Construction 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.