- Companies
- Property developers
- London
- Southwark Square Limited
Southwark Square Limited
- Company number
- 01937044
- Incorporated
- 7 Aug 198541 years trading
- Registered office
- 38-40 Southwark Street, London, SE1 1UN
- Nature of business
- Development of building projects
Southwark Square Limited is a 41-year-old private limited company registered in London, company number 01937044, one of 14,100 property development companies in London. 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 up £1.2M (+3.4%) on the year before, to £37M.
- Net assets rose in 6 of 6 year-on-year comparisons on record.
- 12 employees on average, up from 10 the year before.
- Balance sheets on record for 8 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £37M | £3.2M | £2.8M | 12 | |
| 31 Dec 2024 | £36M | £4.2M | £2.7M | 10 | |
| 31 Dec 2023 | £34M | £5.7M | £6M | £4.3M | 8 |
| 31 Dec 2022 | £32M | £3.8M | £3.9M | £4.1M | 8 |
| 30 Jun 2019 | £23M | £305K | £2.2M | £758K | |
| 30 Jun 2018 | £23M | £61K | £2.3M | £3.1M | |
| 30 Jun 2017 | £21M | £257K | £379K | £2.6M | 3 |
| 30 Jun 2016 | £21M | £705K | £742K | £767K | 3 |
Public contracts won
Southwark Square Limited has one public sector contract award on record; the ones with their own published value total £13K (2026). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| UK Research and Innovation | CSP26192 - Venue Hire & Catering | £13K | 13 Feb 2026 |
Where Southwark Square Limited is registered
The registered office is in London (SE1), in the Southwark local authority area, London. Show SE1 1UN on a map.
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What happens if Southwark Square 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
- 01937044
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 August 1985 (41 years ago)
- Registered office
- 38-40 Southwark Street, London, SE1 1UN
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 24 July 2026
- Previous names
- Lopex Engineering (UK) Limited (until 18 Nov 2008)
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Southwood Domestic Services Limited1996
- Souza Partners Ltd2023
- Sovereign Acres Estate Limited2023
- Sovereign Hospitality Private Limited2017
- Sovrin Plastics Investments Trading Limited2023
- Sowah Ltd2026
- Sowerby Properties Limited2014
- Spa Global Investment and Consultancy Ltd2024
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Southwark Square Limited's accounts due?
Southwark Square Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Southwark Square 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 Southwark Square Limited still trading?
Southwark Square 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 Southwark Square Limited do?
Southwark Square Limited is registered under Development of building projects (SIC 41100).
How old is Southwark Square Limited?
Southwark Square Limited was incorporated on 7 August 1985, 41 years ago.
Has Southwark Square Limited won public sector contracts?
Yes. Southwark Square Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £13K), most recently from UK Research and Innovation.
What is the penalty if Southwark Square 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 Southwark Square 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.