- Companies
- Civil engineering
- London
- Gbssl Limited
Gbssl Limited
- Company number
- 12595338
- Incorporated
- 11 May 20206 years trading
- Registered office
- 68 Compton Street, London, EC1V 0BN
- Nature of business
- Construction of utility projects for electricity and telecommunications
Gbssl Limited is a 6-year-old private limited company registered in London, company number 12595338, one of 1,853 civil engineering contractors in London. 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 £2,096 (-32.8%) on the year before, to -£8,484.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £7,665 against £16K owed within a year: 0.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£8,484 | £7,665 | £16K | 0 | |
| 31 May 2024 | -£6,388 | £5,981 | £13K | 0 | |
| 31 May 2023 | -£3,526 | £5,063 | £10K | 0 | |
| 31 May 2022 | £3,451 | £11K | £10K | 0 | |
| 31 May 2021 | £2,163 | £9,547 | £11K | 0 |
Who runs and owns Gbssl Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** U*** | Director | May 2020 |
Person with significant control
Where Gbssl Limited is registered
The registered office is in London (EC1V), in the Islington local authority area, London. Show EC1V 0BN on a map.
Other trade companies in EC1V
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- J&R Partners LtdBuilders
- The Tile Craft LtdFinishing trades
- Cathal Od Solutions LtdSpecialist contractors
What happens if Gbssl 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 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
- 12595338
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 May 2020 (6 years ago)
- Registered office
- 68 Compton Street, London, EC1V 0BN
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 12 May 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Gcitj Babel Limited2021
- Gea Civil Engineering & Surveys Ltd2017
- Gej Project Services Limited2012
- Gel Construction Limited2014
- Genosu Limited2016
- Geo-1 Survey Ltd2022
- Geomatec Consulting Engineers Ltd2018
- George and Sean Limited2024
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Gbssl Limited's accounts due?
Gbssl Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Gbssl Limited'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 Gbssl Limited still trading?
Gbssl 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 Gbssl Limited do?
Gbssl Limited is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Gbssl Limited?
Gbssl Limited was incorporated on 11 May 2020, 6 years ago.
Who runs Gbssl Limited?
Gbssl Limited has 1 active director, the longest-serving appointed in May 2020. Their names and service addresses are on the Companies House register.
Who owns Gbssl Limited?
One person or company has significant control of Gbssl Limited: an individual (has significant influence or control).
What is the penalty if Gbssl 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 Gbssl 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.