- Companies
- Installers
- Barnsley
- London Blackstone Developments Limited
London Blackstone Developments Limited
- Company number
- 11216467
- Incorporated
- 21 Feb 20188 years trading
- Registered office
- 2 Western Street, Barnsley, S70 2BP
- Nature of business
- Other construction installation
London Blackstone Developments Limited is a 8-year-old private limited company registered in Barnsley, company number 11216467, one of 88 installation companies (insulation, lifts, shutters and similar) in Barnsley. Companies House shows its accounts as overdue: they were due on 28 February 2026.
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 £15K on the year before, to £13K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £40K against £18K owed within a year: 2.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2019 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 29 Feb 2024 | £13K | £1,086 | £40K | £18K | 1 |
| 28 Feb 2023 | -£1,180 | £5,761 | £28K | £22K | 1 |
| 28 Feb 2022 | £505 | £17K | £50K | £40K | 1 |
| 28 Feb 2021 | £154 | £2,953 | £22K | £8,777 | 1 |
| 29 Feb 2020 | -£182 | £12 | £648 | £830 | 1 |
| 28 Feb 2019 | £228 | £12 | £781 | £553 | 1 |
Where London Blackstone Developments Limited is registered
The registered office is in Barnsley (S70), in the Barnsley local authority area, Yorkshire and The Humber. Show S70 2BP on a map.
Other trade companies in S70
- Perfect Automotive LtdMotor traders
- BLF Plumbing LimitedPlumbers and heating engineers
- R&J Gas Services LtdPlumbers and heating engineers
- Revora Performance LtdMechanics and garages
- Sykes & Sons Water Utilities LtdCivil engineering
- Cropcore LtdInstallers
- LW Handyman LtdCleaning companies
- Ehv Barnsley LtdMechanics and garages
Shared registered office
42 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 London Blackstone Developments Limited files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2026 to 31 Mar 2026 | £150 |
| 1 to 3 months late | 1 Apr 2026 to 31 May 2026 | £375 |
| 3 to 6 months late | 1 Jun 2026 to 31 Aug 2026 | £750 |
| More than 6 months late | From 1 Sep 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2026 | £200 |
| 3 months late | 31 Aug 2026 | another £200 |
| 6 months late | 30 Nov 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11216467
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 February 2018 (8 years ago)
- Registered office
- 2 Western Street, Barnsley, S70 2BP
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 February 2024
- Last confirmation statement
- 20 February 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Barnsley
Other active installation companies (insulation, lifts, shutters and similar) registered in Barnsley.
- M.R. Site Services (Barnsley) Limited2013
- McKay Commercial Interiors Limited2016
- Montage Yorkshire Limited2004
- Neil Wake Services Ltd2012
- Odj Drywall Ltd2023
- Ojm Energy Ltd2026
- Olymp-Mobile2 Ltd2023
- Optimal Contracting Services Ltd2023
All installation companies (insulation, lifts, shutters and similar) in Barnsley · All trades in Barnsley · Installers across the UK
Frequently asked questions
When are London Blackstone Developments Limited's accounts due?
London Blackstone Developments Limited's accounts were due at Companies House on 28 February 2026 and the register shows them as overdue.
When is London Blackstone Developments Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 February 2025, due by 28 February 2026, and one for the period to 31 May 2025, due by 31 May 2026. Corporation tax is payable 9 months and 1 day after the end of each.
Is London Blackstone Developments Limited still trading?
London Blackstone Developments Limited is listed as active on the Companies House register (checked 12 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 London Blackstone Developments Limited do?
London Blackstone Developments Limited is registered under Other construction installation (SIC 43290).
How old is London Blackstone Developments Limited?
London Blackstone Developments Limited was incorporated on 21 February 2018, 8 years ago.
What is the penalty if London Blackstone Developments 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 London Blackstone Developments Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.