- Companies
- Civil engineering
- Dungannon
- S4S Developments Ltd
S4S Developments Ltd
- Company number
- NI683104
- Incorporated
- 15 Oct 20214 years trading
- Registered office
- 2 Church Street, Ballygawley, Dungannon, BT70 2HB
- Nature of business
- Construction of other civil engineering projects n.e.c.
S4S Developments Ltd is a 4-year-old private limited company registered in Dungannon, company number NI683104, one of 52 civil engineering contractors in Dungannon. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where S4S Developments Ltd is registered
The registered office is in Dungannon (BT70), in the Mid Ulster local authority area, Northern Ireland. Show BT70 2HB on a map.
Other trade companies in BT70
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- Creteworx (N.I.) LtdCivil engineering
- Ralph Burrows & Sons LtdSpecialist contractors
- Tyrone Bricklayers LtdBuilders
- D Blake Electrical LtdElectricians
- Harform LtdCivil engineering
- McNally Groundworks LtdGroundworks and demolition
- Top Landscapes & Gardening LimitedLandscapers and gardeners
Also registered at this address
9 other companies use the same registered office as S4S Developments Ltd.
- Civil Tec Construction (UK) LimitedCivil engineering
- DMG Heating LtdPlumbers and heating engineers
- Dna Heat LtdPlumbers and heating engineers
- Finmac Construction LtdBuilders
- Gillcon Concrete Products LimitedGroundworks and demolition
- McAleer Construction LtdBuilders
- Ninety9 Tunnelling LtdCivil engineering
- S4S Holdings LtdProperty developers
- Varren Developments LtdProperty developers
What happens if S4S Developments 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- NI683104
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 October 2021 (4 years ago)
- Registered office
- 2 Church Street, Ballygawley, Dungannon, BT70 2HB
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 14 October 2025
- Charges (mortgages)
- 1 outstanding of 2 registered
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 Dungannon
Other active civil engineering contractors registered in Dungannon.
- Sean Toner Mechanical Ltd2025
- TQ Comms Ltd2022
- Universal Process Engineering Limited2013
- Wylie Civil Engineering Ltd2021
- Ap MC Crory Engineering Limited2006
- Bcsni Ltd2022
- BN Utility Services Limited2021
- Camcon Plant Limited2018
All civil engineering contractors in Dungannon · All trades in Dungannon · Civil engineering across the UK
Frequently asked questions
When are S4S Developments Ltd's accounts due?
S4S Developments Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is S4S Developments Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is S4S Developments Ltd still trading?
S4S Developments 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 S4S Developments Ltd do?
S4S Developments Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is S4S Developments Ltd?
S4S Developments Ltd was incorporated on 15 October 2021, 4 years ago.
What is the penalty if S4S Developments 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 S4S Developments 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.