- Companies
- Property developers
- Cardiff
- Aj Construction (Cardiff) Ltd
Aj Construction (Cardiff) Ltd
- Company number
- 15766287
- Incorporated
- 6 Jun 20242 years trading
- Registered office
- 40A Richards Street, Cathays, Cardiff, CF24 4DA
- Nature of business
- Development of building projects
Aj Construction (Cardiff) Ltd is a 2-year-old private limited company registered in Cardiff, company number 15766287, one of 407 property development companies in Cardiff. Its next accounts are due at Companies House on 29 March 2027, and the CT600 for the period to 29 June 2026 is due at HMRC on 29 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 June 2025, as filed at Companies House.
Where Aj Construction (Cardiff) Ltd is registered
The registered office is in Cardiff (CF24), in the Cardiff local authority area, Wales. Show CF24 4DA on a map.
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- RK Asset & Trading Co LtdMotor traders
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What happens if Aj Construction (Cardiff) 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 29 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Mar 2027 to 29 Apr 2027 | £150 |
| 1 to 3 months late | 30 Apr 2027 to 29 Jun 2027 | £375 |
| 3 to 6 months late | 30 Jun 2027 to 29 Sep 2027 | £750 |
| More than 6 months late | From 30 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Jun 2027 | £200 |
| 3 months late | 29 Sep 2027 | another £200 |
| 6 months late | 29 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Jun 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
- 15766287
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 June 2024 (2 years ago)
- Registered office
- 40A Richards Street, Cathays, Cardiff, CF24 4DA
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 29 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 5 June 2026
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 Cardiff
Other active property development companies registered in Cardiff.
- Aj3 Consult Ltd2017
- Ajn Investments Limited2002
- Ak Serviced Apartments Ltd2023
- Al-Kelaby & Rasoul Investment Ltd2026
- Alan Bell Building Services Limited2010
- Alice Palace Properties Ltd.2016
- Allora Design & Build Ltd2022
- Amber Project Management Limited2025
All property development companies in Cardiff · All trades in Cardiff · Property developers across the UK
Frequently asked questions
When are Aj Construction (Cardiff) Ltd's accounts due?
Aj Construction (Cardiff) Ltd's next accounts are due at Companies House by 29 March 2027 (in 167 days), covering the period to 29 June 2026.
When is Aj Construction (Cardiff) Ltd's CT600 due?
The CT600 for the period to 29 June 2026 is due at HMRC by 29 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 March 2027.
Is Aj Construction (Cardiff) Ltd still trading?
Aj Construction (Cardiff) 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 Aj Construction (Cardiff) Ltd do?
Aj Construction (Cardiff) Ltd is registered under Development of building projects (SIC 41100).
How old is Aj Construction (Cardiff) Ltd?
Aj Construction (Cardiff) Ltd was incorporated on 6 June 2024, 2 years ago.
What is the penalty if Aj Construction (Cardiff) 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 Aj Construction (Cardiff) 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.