- Companies
- Builders
- Southampton
- Green Square Design Ltd
Green Square Design Ltd
- Company number
- 14129825
- Incorporated
- 25 May 20224 years trading
- Registered office
- 40 Watts Close, Southampton, SO16 9WA
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other construction installation
Green Square Design Ltd is a 4-year-old private limited company registered in Southampton, company number 14129825, one of 491 building contractors in Southampton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 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 £4,736 (-620.7%) on the year before, to -£5,499.
- Current assets of £12K against £28K owed within a year: 0.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£5,499 | £12K | £28K | 1 | |
| 31 May 2024 | -£763 | £4,576 | £6,004 | 1 | |
| 31 May 2023 | £297 | £3,173 | 1 |
Where Green Square Design Ltd is registered
The registered office is in Southampton (SO16), in the Southampton local authority area, South East. Show SO16 9WA on a map.
Other trade companies in SO16
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- Coastline Living LimitedProperty developers
- STN Brickwork LimitedBuilders
- Bam M.E.P LtdPlumbers and heating engineers
- PPK Carpentry LimitedJoiners and carpenters
- Law Building Facilities LtdBuilders
- Liberty Link Investments LtdProperty developers
- Pathway Cars UK LtdMotor traders
What happens if Green Square Design 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 14129825
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 May 2022 (4 years ago)
- Registered office
- 40 Watts Close, Southampton, SO16 9WA
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other construction installation (SIC 43290) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 24 May 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 Southampton
Other active building contractors registered in Southampton.
- Greenempire Ltd2020
- Grey Spot Ltd2025
- GS Builders Southampton Limited2017
- Gyles Construction Limited1998
- H & G Building Services Limited2015
- Halbac Construction Solutions Ltd2024
- Hammer Down Projects Limited2026
- Hampshire Garden Rooms Ltd2020
All building contractors in Southampton · All trades in Southampton · Builders across the UK
Frequently asked questions
When are Green Square Design Ltd's accounts due?
Green Square Design Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Green Square Design Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Green Square Design Ltd still trading?
Green Square Design 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 Green Square Design Ltd do?
Green Square Design Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other construction installation (SIC 43290).
How old is Green Square Design Ltd?
Green Square Design Ltd was incorporated on 25 May 2022, 4 years ago.
What is the penalty if Green Square Design 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 Green Square Design 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.