- Companies
- Joiners and carpenters
- Carmarthen
- J.B. Building & Renovation Ltd
J.B. Building & Renovation Ltd
- Company number
- 17016695
- Incorporated
- 6 Feb 2026
- Registered office
- 25 Hafod Cwnin, Carmarthen, SA31 2AU
- Nature of business
- Joinery installation; Floor and wall covering; Other building completion and finishing
J.B. Building & Renovation Ltd is a newly incorporated private limited company registered in Carmarthen, company number 17016695, one of 11 joinery companies in Carmarthen. Its next accounts are due at Companies House on 6 November 2027, and its first CT600 is due at HMRC on 5 February 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 J.B. Building & Renovation Ltd is registered
The registered office is in Carmarthen (SA31), in the Carmarthenshire local authority area, Wales. Show SA31 2AU on a map.
Other trade companies in SA31
- Revworks Studio LtdMechanics and garages
- Celf Construction LimitedPlasterers
- DCM Plant Hire LimitedSpecialist contractors
- M Owen Construction LtdBuilders
- Tce Construction LtdBuilders
- LW Pro Build LtdBuilders
- PW Solar LtdElectricians
- Mark Williams Carpets LimitedFloor and wall tilers
What happens if J.B. Building & Renovation 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 6 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Nov 2027 to 6 Dec 2027 | £150 |
| 1 to 3 months late | 7 Dec 2027 to 6 Feb 2028 | £375 |
| 3 to 6 months late | 7 Feb 2028 to 6 May 2028 | £750 |
| More than 6 months late | From 7 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17016695
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 February 2026
- Registered office
- 25 Hafod Cwnin, Carmarthen, SA31 2AU
- Nature of business
- Joinery installation (SIC 43320)
Floor and wall covering (SIC 43330)
Other building completion and finishing (SIC 43390) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for joinery companies
Joinery companies can carry stock and work in progress at the year end, especially bespoke workshop work, and that figure moves the profit for the year.
Similar companies in Carmarthen
Other active joinery companies registered in Carmarthen.
- J.C. Joinery & Cabinet Makers Ltd2015
- L M Carpentry Limited2025
- MDJ Carpentry Limited2026
- O J Joinery Limited2008
- Woodro Kitchens & Bedrooms Limited2025
- Adam Lewis Carpentry Limited2025
- Bearcroft Timber Frame Ltd2018
- Ceasar Carpentry & Construction Limited2024
All joinery companies in Carmarthen · All trades in Carmarthen · Joiners and carpenters across the UK
Frequently asked questions
When are J.B. Building & Renovation Ltd's accounts due?
J.B. Building & Renovation Ltd's next accounts are due at Companies House by 6 November 2027 (in 389 days), covering the period to 28 February 2027.
When is J.B. Building & Renovation 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 5 February 2027, due by 5 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is J.B. Building & Renovation Ltd still trading?
J.B. Building & Renovation 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 J.B. Building & Renovation Ltd do?
J.B. Building & Renovation Ltd is registered under Joinery installation (SIC 43320); Floor and wall covering (SIC 43330); Other building completion and finishing (SIC 43390).
How old is J.B. Building & Renovation Ltd?
J.B. Building & Renovation Ltd was incorporated on 6 February 2026, less than a year ago.
What is the penalty if J.B. Building & Renovation 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 J.B. Building & Renovation 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.