- Companies
- Property developers
- Cardiff
- Sphinx Constructions Ltd
Sphinx Constructions Ltd
- Company number
- 13452848
- Incorporated
- 11 Jun 20215 years trading
- Registered office
- 140 North Road, Cardiff, CF14 3BH
- Nature of business
- Development of building projects; Construction of domestic buildings; Residents property management
Sphinx Constructions Ltd is a 5-year-old private limited company registered in Cardiff, company number 13452848, one of 407 property development companies in Cardiff. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £5,132 (-55.8%) on the year before, to £4,060.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £11K against £1,706 owed within a year: 6.2 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £4,060 | £9,622 | £11K | £1,706 | 2 |
| 30 Jun 2024 | £9,192 | £14K | £15K | £2,605 | 1 |
| 30 Jun 2023 | £1,902 | £11K | £423 | 1 | |
| 30 Jun 2022 | £702 | £843 | £141 | 1 |
Where Sphinx Constructions Ltd is registered
The registered office is in Cardiff (CF14), in the Cardiff local authority area, Wales. Show CF14 3BH on a map.
Other trade companies in CF14
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- 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 Sphinx Constructions 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 13452848
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 June 2021 (5 years ago)
- Registered office
- 140 North Road, Cardiff, CF14 3BH
- Nature of business
- Development of building projects (SIC 41100)
Construction of domestic buildings (SIC 41202)
Residents property management (SIC 98000) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 29 January 2026
- Previous names
- Sphinx Construction & Estate Agents Ltd (until 24 Apr 2024)
Sphinx Constructions & Property Development Ltd (until 28 Aug 2023)
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.
- Stables Development Ltd2026
- Start Bay Developments (Prideaux) Limited2026
- Start Bay Developments Limited2019
- Statuslist Limited1990
- Suli Properties Limited2012
- Sunivesh Ltd2007
- Swan Property Developments Ltd2020
- T P M (Wales) Limited2000
All property development companies in Cardiff · All trades in Cardiff · Property developers across the UK
Frequently asked questions
When are Sphinx Constructions Ltd's accounts due?
Sphinx Constructions Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Sphinx Constructions Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Sphinx Constructions Ltd still trading?
Sphinx Constructions 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 Sphinx Constructions Ltd do?
Sphinx Constructions Ltd is registered under Development of building projects (SIC 41100); Construction of domestic buildings (SIC 41202); Residents property management (SIC 98000).
How old is Sphinx Constructions Ltd?
Sphinx Constructions Ltd was incorporated on 11 June 2021, 5 years ago.
What is the penalty if Sphinx Constructions 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 Sphinx Constructions 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.