- Companies
- Finishing trades
- Cardiff
- MJ Building & Maintenance Ltd
MJ Building & Maintenance Ltd
- Company number
- 16262877
- Incorporated
- 19 Feb 20251 year trading
- Registered office
- 162 Bute Street, Cardiff, South Glamorgan, CF10 5HQ
- Nature of business
- Other building completion and finishing
MJ Building & Maintenance Ltd is a 1-year-old private limited company registered in Cardiff, company number 16262877, one of 129 building finishing companies in Cardiff. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 28 February 2026, as filed at Companies House.
Where MJ Building & Maintenance Ltd is registered
The registered office is in Cardiff (CF10), in the Cardiff local authority area, Wales. Show CF10 5HQ on a map.
Other trade companies in CF10
- Hudcon LtdBuilders
- Skyline Pitched and Flat Roofing LtdRoofers
- Eclipse Construction Group LtdPlasterers
- DWR Plumbing LtdPlumbers and heating engineers
- CF Glazing LtdGlaziers
- Regency Construction Group LtdProperty developers
- Qproperty Solutions LimitedFinishing trades
- Express Vehicle Services (Cardiff) LimitedMechanics and garages
What happens if MJ Building & Maintenance 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 30 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 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
- 16262877
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 February 2025 (1 year ago)
- Registered office
- 162 Bute Street, Cardiff, South Glamorgan, CF10 5HQ
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 18 February 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Cardiff
Other active building finishing companies registered in Cardiff.
- MP Building and Facilities Ltd2023
- MTS Building Maintenance Limited2026
- NJ Hughes Construction Limited2018
- NSJ Property Developments Ltd2024
- Oakstone Home Renovations Ltd2026
- Probert & Mumford Limited2005
- Proper TŶ Facilities Ltd2026
- Pughs Construction Limited2013
All building finishing companies in Cardiff · All trades in Cardiff · Finishing trades across the UK
Frequently asked questions
When are MJ Building & Maintenance Ltd's accounts due?
MJ Building & Maintenance Ltd's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is MJ Building & Maintenance Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is MJ Building & Maintenance Ltd still trading?
MJ Building & Maintenance 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 MJ Building & Maintenance Ltd do?
MJ Building & Maintenance Ltd is registered under Other building completion and finishing (SIC 43390).
How old is MJ Building & Maintenance Ltd?
MJ Building & Maintenance Ltd was incorporated on 19 February 2025, 1 year ago.
What is the penalty if MJ Building & Maintenance 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 MJ Building & Maintenance 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.