£2.08m
+8%vs Mar 2024Active07917725Private limited companyNeath
CONCRETE STRUCTURES & FLOORS LTD
Significant control: Sean Alexander O'Sullivan (25–50%), Darthvark Holdings Limited (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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Registered activity: Other construction installation (SIC 43290). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
CONCRETE STRUCTURES & FLOORS LTD is an active private limited company (company number 07917725) incorporated on 20 January 2012, registered in Neath. Its registered activity is other construction installation (SIC 43290). Latest small accounts cover the period ending 31 March 2025, showing net assets of £2.08m and cash of £313k, with 12 employees on average. Net assets rose 8% on the prior period (£1.93m).
Peer position · net assets
By net assets it sits in the top quarter of 160 comparable companies in Swansea (median £2,848, upper quartile £25k).
02
Ownership and control
- Mr Sean Alexander O'Sullivan
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
- Darthvark Holdings Limited
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
- Mr Antony Francis Klar
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
- Darthvark Ltd
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 20 January 201214 yrs ago
- Next accounts due
- 31 December 2026in 69 days
- Confirmation statement due
- 3 February 2027in 103 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 43290
- Other construction installation
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£313k
+115%vs Mar 2024Not reported
12
+20%vs Mar 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £2.08m | £313k | £2.58m | £1.19m | — | — | 12 |
| 31 March 2024 | £1.93m | £146k | £1.92m | £814k | — | — | 10 |
Current ratio2.42Current assets ÷ creditors within one year
Cash per employee£26kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £2,084,503 at 31 March 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 2.42
- Cash at bank of £50,000 or moreCash £313,372
- Incorporated five or more years agoIncorporated 20 January 2012
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Confirmation statement duein 103 days
- Next accounts duein 69 days
- Accounts period endNet assets £2.08m · small accounts
- Accounts period endNet assets £1.93m · small accounts
- Incorporated
08
Similar companies in Swansea
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- PENNANT GARAGE DOORS LTDCarms · inc. Jun 2012
- SAB (WALES) LIMITEDSwansea · inc. Jun 2012
- SUNSHINE HOME IMPROVEMENTS LIMITEDNeath · inc. Jul 2012
- EATON FENCING SPECIALISTS LIMITEDEnterprise Park · inc. Jul 2011
All companies incorporated on 20 January 2012 · in Jan 2012.
09
Reminders for CONCRETE STRUCTURES & FLOORS LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.