- Companies
- Specialist contractors
- Horsham
- C.S.S. Systems Ltd
C.S.S. Systems Ltd
- Company number
- 04020941
- Incorporated
- 23 Jun 200026 years trading
- Registered office
- 2 Piries Place, Horsham, West Sussex, RH12 1EH
- Nature of business
- Other specialised construction activities n.e.c.
C.S.S. Systems Ltd is a 26-year-old private limited company registered in Horsham, company number 04020941, one of 71 specialist construction companies in Horsham. 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 £103K (-100.1%) on the year before, to -£116.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £710K against £538K owed within a year: 1.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£116 | £139K | £710K | £538K | 0 |
| 30 Jun 2024 | £103K | £193K | £911K | £590K | 14 |
| 30 Jun 2023 | £44K | £0 | £541K | £400K | 10 |
| 30 Jun 2022 | £26K | £7,445 | £467K | £298K | 8 |
| 30 Jun 2021 | £7,371 | £29K | £337K | £275K | 8 |
| 30 Jun 2020 | £4,984 | £22K | £266K | £285K | 9 |
| 30 Jun 2019 | £42K | £1 | £371K | £355K | |
| 30 Jun 2018 | £2,071 | £0 | £260K | £259K | 8 |
| 30 Jun 2017 | £29K | £64 | £209K | £181K | 7 |
| 30 Jun 2016 | £35K | £475 | £144K | £110K |
Public contracts won
C.S.S. Systems Ltd has one public sector contract award on record (2020). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| The University of Kent | PC19_002 Salto System Installations | Ceiling, not shown | 26 May 2020 |
Where C.S.S. Systems Ltd is registered
The registered office is in Horsham (RH12), in the Horsham local authority area, South East. Show RH12 1EH on a map.
Other trade companies in RH12
- Ravenscroft Design LtdBuilders
- Greenblade Group LtdLandscapers and gardeners
- Carter Cook Construction LimitedProperty developers
- RN Property Solution LtdFinishing trades
- Bell & Son Construction LtdProperty developers
- Ihk Automotive LtdMechanics and garages
- Bubberts Cleaning Partnership LtdCleaning companies
- TD Garden Maintenance LtdLandscapers and gardeners
Shared registered office
32 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if C.S.S. Systems 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
- 04020941
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 June 2000 (26 years ago)
- Registered office
- 2 Piries Place, Horsham, West Sussex, RH12 1EH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 13 June 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Horsham
Other active specialist construction companies registered in Horsham.
- Chase Mill Properties Limited1993
- CLS Groundworks & Construction Limited2009
- D and H Crane Hire Ltd2020
- Danesview Construction Ltd2024
- Dav Media Ltd2016
- Elb Ian Bradley Construction Services Ltd2025
- Excel Construction Management Limited2014
- Fieldhaven Limited2003
All specialist construction companies in Horsham · All trades in Horsham · Specialist contractors across the UK
Frequently asked questions
When are C.S.S. Systems Ltd's accounts due?
C.S.S. Systems Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is C.S.S. Systems 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 C.S.S. Systems Ltd still trading?
C.S.S. Systems 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 C.S.S. Systems Ltd do?
C.S.S. Systems Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is C.S.S. Systems Ltd?
C.S.S. Systems Ltd was incorporated on 23 June 2000, 26 years ago.
Has C.S.S. Systems Ltd won public sector contracts?
Yes. C.S.S. Systems Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from The University of Kent.
What is the penalty if C.S.S. Systems 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 C.S.S. Systems 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.