- Companies
- Civil engineering
- Southampton
- SLS Construction (Southern) Ltd
SLS Construction (Southern) Ltd
- Company number
- 06768980
- Incorporated
- 9 Dec 200817 years trading
- Registered office
- 33A Portsmouth Road, Southampton, Hampshire, SO19 9BA
- Nature of business
- Construction of other civil engineering projects n.e.c.; Other activities of employment placement agencies
SLS Construction (Southern) Ltd is a 17-year-old private limited company registered in Southampton, company number 06768980, one of 114 civil engineering contractors in Southampton. Its next accounts are due at Companies House on 31 August 2027, and its first CT600 is due at HMRC on 31 May 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 £39K (-36.5%) on the year before, to £68K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £425K against £529K owed within a year: 0.8 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £68K | £14K | £425K | £529K | 3 |
| 31 May 2024 | £107K | £11K | £473K | £456K | 3 |
| 31 May 2023 | £118K | £34K | £370K | £253K | 4 |
| 31 May 2022 | £116K | £6,200 | £414K | £141K | 4 |
| 31 May 2021 | £170K | £122K | £568K | £178K | 6 |
| 31 May 2020 | £163K | £173K | £427K | £307K | |
| 31 May 2019 | £56K | £9,237 | £379K | £371K | |
| 31 May 2017 | £32K | £21K | £393K | £425K | 2 |
| 31 May 2016 | £28K | £41K | £389K | £382K | |
| 31 May 2015 | £43K | £3,511 | £222K | £180K |
Where SLS Construction (Southern) Ltd is registered
The registered office is in Southampton (SO19), in the Southampton local authority area, South East. Show SO19 9BA on a map.
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Also registered at this address
13 other companies use the same registered office as SLS Construction (Southern) Ltd.
- Air Cool Mechanical Services LtdPlumbers and heating engineers
- Andrew Pritchard Services LimitedFloor and wall tilers
- Clean Freaks Group LimitedCleaning companies
- Des Res Cars LimitedMotor traders
- J&L Building & Landscapes LimitedBuilders
- L & A Flooring LtdFloor and wall tilers
- Mainclad LimitedFinishing trades
- MRG Brickwork Specialist LimitedFinishing trades
- Premier Autoglaze LimitedMechanics and garages
- S Allen Electrical LtdElectricians
- Safe2Stay LtdCleaning companies
- Sharpe's Electrical Services LimitedElectricians
- Solent Tyre Services LtdMechanics and garages
What happens if SLS Construction (Southern) 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 06768980
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 December 2008 (17 years ago)
- Registered office
- 33A Portsmouth Road, Southampton, Hampshire, SO19 9BA
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Other activities of employment placement agencies (SIC 78109) - Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 20 February 2026
- Charges (mortgages)
- 5 outstanding of 5 registered
- Previous names
- Skilled Labour Services (Southern) Ltd. (until 25 Jun 2025)
Ada Drywall Ltd (until 8 Sep 2010)
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Southampton
Other active civil engineering contractors registered in Southampton.
- Solent Contracting Limited2015
- Solent Streetworks Consultants Limited2017
- Sonridge Building Group Ltd2026
- Southampton Pier Limited2011
- Strandhill Property Development Limited2006
- Strandhill, Civil Engineering Limited1994
- Temporary Solutions Traffic Management Ltd2021
- Test Valley Driveways Limited2022
All civil engineering contractors in Southampton · All trades in Southampton · Civil engineering across the UK
Frequently asked questions
When are SLS Construction (Southern) Ltd's accounts due?
SLS Construction (Southern) Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is SLS Construction (Southern) Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 May 2026, due by 31 May 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is SLS Construction (Southern) Ltd still trading?
SLS Construction (Southern) 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 SLS Construction (Southern) Ltd do?
SLS Construction (Southern) Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Other activities of employment placement agencies (SIC 78109).
How old is SLS Construction (Southern) Ltd?
SLS Construction (Southern) Ltd was incorporated on 9 December 2008, 17 years ago.
What is the penalty if SLS Construction (Southern) 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 SLS Construction (Southern) 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.