- Company number
- 09659698
- Incorporated
- 26 Jun 201511 years trading
- Registered office
- 19 the Circle, Queen Elizabeth Street, London, SE1 2JE
- Nature of business
- Construction of commercial buildings
Black Sixteen Limited is a 11-year-old private limited company registered in London, company number 09659698, one of 12,075 building contractors 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 £251K (+105.1%) on the year before, to £490K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £474K against £71K owed within a year: 6.7 times cover.
- 1 employee on average, up from 0 the year before.
- 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 Dec 2025 | £490K | £314K | £474K | £71K | 1 |
| 31 Dec 2024 | £239K | £229K | £232K | £80K | 0 |
| 31 Dec 2023 | £177K | £116K | £206K | £116K | 0 |
| 31 Dec 2022 | £94K | £34K | £44K | £37K | 0 |
| 31 Dec 2021 | £128K | £30K | £119K | £56K | 0 |
| 31 Dec 2020 | £63K | £8,034 | £37K | £39K | 0 |
| 31 Dec 2019 | £67K | £34K | £71K | £43K | 0 |
| 31 Dec 2018 | £53K | £16K | £54K | £39K | |
| 31 Dec 2017 | £152K | £126K | £486K | £335K | |
| 31 Dec 2016 | £42K | £9,718 | £14K | £5,480 |
Where Black Sixteen Limited is registered
The registered office is in London (SE1), in the Southwark local authority area, London. Show SE1 2JE on a map.
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Also registered at this address
19 other companies use the same registered office as Black Sixteen Limited.
- Adventis CD UK LtdMachinery repair and installation
- B.Decor LtdFloor and wall tilers
- Carrapatelo Construction Engineering LtdBuilders
- Cuorma UK Ltd.Property developers
- Designspacelondon LimitedSpecialist contractors
- Egoin UK LimitedSpecialist contractors
- Full Fibre Services LtdInstallers
- Hergon Metropolitan UK LimitedCivil engineering
- Inelsa UK LtdBuilders
- Installations F&F LtdInstallers
- Lopez Landa Interiors LimitedFinishing trades
- Maintenet LtdMachinery repair and installation
- Maysa Construction LtdSpecialist contractors
- PMF Lift Installer LtdSpecialist contractors
- R&B Installations Lifts LtdSpecialist contractors
- RC Robuilding LtdBuilders
- Site and Field UK LimitedProperty developers
- Taramelli UK LtdBuilders
- Tiburtech Build LimitedSpecialist contractors
What happens if Black Sixteen 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
- 09659698
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 June 2015 (11 years ago)
- Registered office
- 19 the Circle, Queen Elizabeth Street, London, SE1 2JE
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 20 February 2026
- Previous names
- Mekkano Ltd (until 15 Oct 2015)
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 London
Other active building contractors registered in London.
- Black Wolf Construction Limited2018
- Blackbird Contractors Ltd2025
- Blackbrick Construction Ltd2023
- Blackroom Developments Ltd2023
- Blackstock G&G Limited2025
- Blackstone Construction Management Ltd2026
- Blackstone Stay Management Ltd2026
- Blackstones Property Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Black Sixteen Limited's accounts due?
Black Sixteen 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 Black Sixteen 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 Black Sixteen Limited still trading?
Black Sixteen 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 Sixteen Limited do?
Black Sixteen Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Black Sixteen Limited?
Black Sixteen Limited was incorporated on 26 June 2015, 11 years ago.
What is the penalty if Black Sixteen 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 Sixteen 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.