- Companies
- Property developers
- Wimbledon
- Black Square London Limited
Black Square London Limited
- Company number
- 08512863
- Incorporated
- 1 May 201313 years trading
- Registered office
- The Long Lodge 265- 269 Kingston Road, Wimbledon, London, SW19 3NW
- Nature of business
- Development of building projects
Black Square London Limited is a 13-year-old private limited company registered in Wimbledon, company number 08512863, one of 59 property development companies in Wimbledon. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
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 £62K (-17.1%) on the year before, to £298K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £1.6M against £1.3M owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £298K | £1.6M | £1.3M | 2 | |
| 30 Jun 2025 | £360K | £2.4M | £2M | 2 | |
| 30 Jun 2024 | £323K | £1.4M | £1M | 2 | |
| 30 Jun 2023 | £632K | £1.5M | £677K | 2 | |
| 30 Jun 2022 | £413K | £2M | £914K | 2 | |
| 30 Jun 2021 | £262K | £2.5M | £976K | 2 | |
| 30 Jun 2020 | £313K | £1.1M | £136K | 2 | |
| 30 Jun 2019 | £216K | £4.4M | £939K | ||
| 30 Jun 2018 | £124K | £4.2M | £981K | ||
| 30 Jun 2017 | £159K | £3.7M | £934K |
Where Black Square London Limited is registered
The registered office is in Wimbledon (SW19), in the Merton local authority area, London. Show SW19 3NW on a map.
Other trade companies in SW19
- Firstfixlondon Ltd.Builders
- Rainbow One Construction UK LtdSpecialist contractors
- Base Bloc LimitedBuilders
- Concealed Climate LimitedPlumbers and heating engineers
- Morningside LtdProperty developers
- Cupi-Building LtdBuilders
- Crown Infra London LtdBuilders
- Aj & Co One LtdProperty developers
Also registered at this address
15 other companies use the same registered office as Black Square London Limited.
- A J Bespoke LtdBuilders
- Aj Demolition LimitedGroundworks and demolition
- Amui Consulting LtdCivil engineering
- Aztec Plastering and Decorating Services LimitedPlasterers
- D.T Francis Heating Services LtdPlumbers and heating engineers
- DG Lavender Hill LimitedProperty developers
- Homer Roofing (UK) LimitedRoofers
- Infinate Connections LtdCivil engineering
- Krue Technologies LtdJoiners and carpenters
- Lee Maintenance LtdBuilders
- London Un LimitedProperty developers
- Magic Tiler LtdFloor and wall tilers
- Property Solutions SW LtdProperty developers
- Song Lee Builders LimitedBuilders
- The Survey Group LtdSpecialist contractors
What happens if Black Square London 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2029 | 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
- 08512863
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 May 2013 (13 years ago)
- Registered office
- The Long Lodge 265- 269 Kingston Road, Wimbledon, London, SW19 3NW
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 12 November 2025
- Charges (mortgages)
- 3 outstanding of 3 registered
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 Wimbledon
Other active property development companies registered in Wimbledon.
- Boyd Morison Limited2022
- Brasted Investments (Southwark) Limited2018
- Brasted Investments (Woolwich) Ltd2015
- Brasted Investments Limited2014
- Chivelston Buildings Limited2001
- Cinnyris Holdings Limited2024
- Colin Fitzpatrick Productions Ltd1987
- Cosy Hauz Developments Ltd2020
All property development companies in Wimbledon · All trades in Wimbledon · Property developers across the UK
Frequently asked questions
When are Black Square London Limited's accounts due?
Black Square London Limited's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is Black Square London Limited's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is Black Square London Limited still trading?
Black Square London 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 Black Square London Limited do?
Black Square London Limited is registered under Development of building projects (SIC 41100).
How old is Black Square London Limited?
Black Square London Limited was incorporated on 1 May 2013, 13 years ago.
What is the penalty if Black Square London 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 Black Square London 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.