- Company number
- 05517236
- Incorporated
- 25 Jul 200521 years trading
- Registered office
- Alton House, 66 High Street, Northwood, Middlesex, HA6 1BL
- Nature of business
- Construction of commercial buildings
4S Construction Limited is a 21-year-old private limited company registered in Northwood, company number 05517236, one of 54 building contractors in Northwood. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £28K (-7.9%) on the year before, to £319K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £669K against £350K owed within a year: 1.9 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £319K | £290 | £669K | £350K | 2 |
| 31 Dec 2024 | £347K | £38K | £1M | £688K | 2 |
| 31 Dec 2023 | £296K | £53K | £968K | £672K | 2 |
| 31 Dec 2022 | £257K | £8,262 | £564K | £312K | 2 |
| 31 Dec 2021 | £269K | £74K | £382K | £114K | 2 |
| 31 Dec 2020 | £182K | £11K | £405K | £224K | 2 |
| 31 Dec 2019 | £178K | £19K | £310K | £132K | 2 |
| 31 Dec 2018 | £190K | £108K | £580K | £390K | 2 |
| 31 Dec 2017 | £181K | £35K | £567K | £387K | 2 |
| 31 Dec 2016 | £155K | £53K | £508K | £354K | 2 |
Where 4S Construction Limited is registered
The registered office is in Northwood (HA6), in the Hillingdon local authority area, London. Show HA6 1BL on a map.
Other trade companies in HA6
- Alexastef LimitedBuilders
- Brill (Rural Property) LimitedProperty developers
- Roblar LimitedBuilders
- Compare My Cleaning Quotes LtdCleaning companies
- Cheshire Developments Group LtdProperty developers
- Elite London Cleaning LtdCleaning companies
- Melylar Render LtdBuilders
- Avidity Air Conditioning LtdPlumbers and heating engineers
Also registered at this address
10 other companies use the same registered office as 4S Construction Limited.
- Bellford Developments LimitedFinishing trades
- Brill (Rural Property) LimitedProperty developers
- Brookpark Developments LimitedProperty developers
- Build Right Homes LimitedProperty developers
- Capel Cottage Estates LtdProperty developers
- Lamb Flooring LimitedFloor and wall tilers
- Master Tech Commercials LtdMechanics and garages
- Monks Meadow Loc LimitedProperty developers
- R T Davies & Son LimitedPlumbers and heating engineers
- Roofing & Building Solutions LtdRoofers
What happens if 4S Construction Limited 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05517236
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2005 (21 years ago)
- Registered office
- Alton House, 66 High Street, Northwood, Middlesex, HA6 1BL
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 25 July 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Northwood
Other active building contractors registered in Northwood.
- Ados Contractors Limited2006
- Aldgate Builders Limited2025
- Alexastef Limited2026
- Algarve Construction Ltd2020
- Amery Plant Limited2009
- Ark Smart Homes Limited2026
- Biro Utilities Ltd2026
- Blyss Garden Rooms Ltd2020
All building contractors in Northwood · All trades in Northwood · Builders across the UK
Frequently asked questions
When are 4S Construction Limited's accounts due?
4S Construction Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is 4S Construction Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is 4S Construction Limited still trading?
4S Construction Limited 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 4S Construction Limited do?
4S Construction Limited is registered under Construction of commercial buildings (SIC 41201).
How old is 4S Construction Limited?
4S Construction Limited was incorporated on 25 July 2005, 21 years ago.
What is the penalty if 4S Construction Limited 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 4S Construction Limited 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.