- Companies
- Specialist contractors
- Portsmouth
- Southway Construction Limited
Southway Construction Limited
- Company number
- 09741937
- Incorporated
- 20 Aug 201511 years trading
- Registered office
- Gatcombe House, Copnor Road, Portsmouth, PO3 5EJ
- Nature of business
- Other specialised construction activities n.e.c.
Southway Construction Limited is a 11-year-old private limited company registered in Portsmouth, company number 09741937, one of 193 specialist construction companies in Portsmouth. 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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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 £54K (-30.9%) on the year before, to £120K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £25K against £8,033 owed within a year: 3.1 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 Aug 2025 | £120K | £25K | £8,033 | 2 | |
| 31 Aug 2024 | £173K | £70K | £31K | 2 | |
| 31 Aug 2023 | £162K | £67K | £26K | 2 | |
| 31 Aug 2022 | £159K | £58K | £19K | 1 | |
| 31 Aug 2021 | £86K | £58K | £16K | 1 | |
| 31 Aug 2020 | £48K | £24K | £7,916 | 1 | |
| 31 Aug 2019 | £70K | £61K | £11K | ||
| 31 Aug 2018 | £27K | £24K | £12K | ||
| 31 Aug 2017 | £22K | £32K | £10K | ||
| 31 Aug 2016 | £6,248 | £11K | £11K | £3 |
Where Southway Construction Limited is registered
The registered office is in Portsmouth (PO3), in the Portsmouth local authority area, South East. Show PO3 5EJ on a map.
Other trade companies in PO3
- GJM Construction LtdBuilders
- Al Fajar Building LimitedFinishing trades
- New Milton Decor LtdPainters and decorators
- Portsmouth Autos LtdMechanics and garages
- Henley Roofing Group LimitedInstallers
- I’M Covered 365 Ac LtdPlumbers and heating engineers
- Scope Bodyshop LtdMechanics and garages
- GP Technical LtdSpecialist contractors
Shared registered office
157 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 Southway 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 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
- 09741937
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 August 2015 (11 years ago)
- Registered office
- Gatcombe House, Copnor Road, Portsmouth, PO3 5EJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 25 August 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 Portsmouth
Other active specialist construction companies registered in Portsmouth.
- Sovereign Plus Contracting Limited2019
- Sovereign Plus Solutions Limited2019
- Space Services Ltd2020
- SPW Interiors Ltd2023
- SSH Building Services Ltd2016
- ST. George Construction Limited2003
- Stedman Groundworks & Sons Ltd2020
- Stern Groundworks Ltd2024
All specialist construction companies in Portsmouth · All trades in Portsmouth · Specialist contractors across the UK
Frequently asked questions
When are Southway Construction Limited's accounts due?
Southway Construction Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Southway Construction Limited'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 Southway Construction Limited still trading?
Southway 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 Southway Construction Limited do?
Southway Construction Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Southway Construction Limited?
Southway Construction Limited was incorporated on 20 August 2015, 11 years ago.
What is the penalty if Southway 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 Southway 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.