- Companies
- Electricians
- Cardiff
- Connelbuild Ltd
Connelbuild Ltd
- Company number
- 14009985
- Incorporated
- 29 Mar 20224 years trading
- Registered office
- PO Box 4385, 14009985 - Companies House Default Address, Cardiff, CF14 8LH
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Plastering; Glazing
Connelbuild Ltd is a 4-year-old private limited company registered in Cardiff, company number 14009985, one of 223 electrical contractors in Cardiff. Companies House shows its accounts as overdue: they were due on 29 December 2023.
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 Connelbuild Ltd is registered
The registered office is in Cardiff (CF14), in the Caerphilly local authority area, Wales. Show CF14 8LH on a map.
Other trade companies in CF14
- Velren Group LtdProperty developers
- Premierroofcare LtdRoofers
- JLG Groundworks LtdCleaning companies
- Tidyvibz LtdCleaning companies
- Ayyappa MTD LtdBuilders
- KM Phoenix Pond, Garden & General Maintenance LtdLandscapers and gardeners
- Eco Green Property Service LtdFinishing trades
- S and J Accident Repairs LtdPainters and decorators
What happens if Connelbuild Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2023 to 29 Jan 2024 | £150 |
| 1 to 3 months late | 30 Jan 2024 to 29 Mar 2024 | £375 |
| 3 to 6 months late | 30 Mar 2024 to 29 Jun 2024 | £750 |
| More than 6 months late | From 30 Jun 2024 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2024 | £200 |
| 3 months late | 30 Jun 2024 | another £200 |
| 6 months late | 30 Sep 2024 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2025 | 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
- 14009985
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2022 (4 years ago)
- Registered office
- PO Box 4385, 14009985 - Companies House Default Address, Cardiff, CF14 8LH
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Plastering (SIC 43310)
Glazing (SIC 43342) - Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Cardiff
Other active electrical contractors registered in Cardiff.
- Control and Power Solutions Limited2023
- Coolcare Technical Services Limited2001
- Coretech Innovations Limited2025
- CP Electrical Cardiff Ltd2024
- Crean Electrical Ltd2020
- D Evans Electrical Ltd2026
- Dan. K Electrical Solutions Ltd2016
- Darch Electrical Limited2017
All electrical contractors in Cardiff · All trades in Cardiff · Electricians across the UK
Frequently asked questions
When are Connelbuild Ltd's accounts due?
Connelbuild Ltd's accounts were due at Companies House on 29 December 2023 and the register shows them as overdue.
When is Connelbuild 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 28 March 2023, due by 28 March 2024, and one for the period to 31 March 2023, due by 31 March 2024. Corporation tax is payable 9 months and 1 day after the end of each.
Is Connelbuild Ltd still trading?
Connelbuild Ltd is listed as active on the Companies House register (checked 12 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 Connelbuild Ltd do?
Connelbuild Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Plastering (SIC 43310); Glazing (SIC 43342).
How old is Connelbuild Ltd?
Connelbuild Ltd was incorporated on 29 March 2022, 4 years ago.
What is the penalty if Connelbuild 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 Connelbuild Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.