- Companies
- Builders
- Southampton
- Atlas South Construction Ltd
Atlas South Construction Ltd
- Company number
- 16005615
- Incorporated
- 8 Oct 20242 years trading
- Registered office
- 348 Portswood Road, Southampton, SO17 3SB
- Nature of business
- Construction of domestic buildings
Atlas South Construction Ltd is a 2-year-old private limited company registered in Southampton, company number 16005615, one of 491 building contractors in Southampton. Companies House shows its accounts as overdue: they were due on 8 October 2026.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Atlas South Construction Ltd is registered
The registered office is in Southampton (SO17), in the Southampton local authority area, South East. Show SO17 3SB on a map.
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What happens if Atlas South Construction Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Oct 2026 to 8 Nov 2026 | £150 |
| 1 to 3 months late | 9 Nov 2026 to 8 Jan 2027 | £375 |
| 3 to 6 months late | 9 Jan 2027 to 8 Apr 2027 | £750 |
| More than 6 months late | From 9 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2026 | £200 |
| 3 months late | 31 Jan 2027 | another £200 |
| 6 months late | 30 Apr 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 2027 | 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
- 16005615
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 October 2024 (2 years ago)
- Registered office
- 348 Portswood Road, Southampton, SO17 3SB
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 7 October 2025
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 Southampton
Other active building contractors registered in Southampton.
- Aurum Hortis Ltd2024
- Avision Brickwork Ltd2024
- Avora Homes Ltd2026
- B & S Salek Ltd2019
- B & W Supreme Services Limited2024
- Bargate Projects Ltd2026
- Baz Builders Limited2022
- Bedford Construction Limited2025
All building contractors in Southampton · All trades in Southampton · Builders across the UK
Frequently asked questions
When are Atlas South Construction Ltd's accounts due?
Atlas South Construction Ltd's accounts were due at Companies House on 8 October 2026 and the register shows them as overdue.
When is Atlas South Construction 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 7 October 2025, due by 7 October 2026, and one for the period to 31 October 2025, due by 31 October 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is Atlas South Construction Ltd still trading?
Atlas South Construction Ltd is listed as active on the Companies House register (checked 13 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 Atlas South Construction Ltd do?
Atlas South Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Atlas South Construction Ltd?
Atlas South Construction Ltd was incorporated on 8 October 2024, 2 years ago.
What is the penalty if Atlas South Construction 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 Atlas South Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.