- Companies
- Civil engineering
- Young Bros Limited
Young Bros Limited
- Company number
- 00468300
- Incorporated
- 10 May 194977 years trading
- Registered office
- The Ashes, Llandissilio, Clynderwen, Pembs, SA66 7TT
- Nature of business
- Construction of utility projects for fluids
Young Bros Limited is a 77-year-old private limited company registered in Clynderwen, company number 00468300, one of the UK's civil engineering contractors. 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 up £669K (+9.7%) on the year before, to £7.6M.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £9.5M against £4.2M owed within a year: 2.3 times cover.
- 41 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £7.6M | £5.5M | £9.5M | £4.2M | 41 |
| 31 May 2024 | £6.9M | £1.7M | £8.9M | £4M | 41 |
| 31 May 2023 | £6.1M | £2M | £7.9M | £3.8M | 41 |
| 31 May 2022 | £6.4M | £2.7M | £7.9M | £3.4M | 41 |
| 31 May 2021 | £6.2M | £3.1M | £6.2M | £1.7M | 39 |
| 31 May 2020 | £6.1M | £3.4M | £6.3M | £2M | 39 |
| 31 May 2019 | £5.9M | £3.7M | £5.9M | £1.9M | 42 |
Who runs and owns Young Bros Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (4)
| Name | Role | Appointed |
|---|---|---|
| A*** Y*** | Director | before Mar 1992 |
| A*** Y*** | Director | before Mar 1992 |
| A*** Y*** | Director | before Mar 1992 |
| A*** Y*** | Secretary | before Mar 1992 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| M*** Y*** | Director | Mar 2012 | |
| S*** Y*** | Director | Jan 1999 |
People with significant control (3)
Charges (secured borrowing)
1 of 2 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Barclays Security Trustee Limited | Outstanding | Jul 2020 |
| Barclays Bank PLC | Satisfied Nov 2011 | Nov 1989 |
Where Young Bros Limited is registered
The registered office is in Clynderwen (SA66), in the Pembrokeshire local authority area, Wales. Show SA66 7TT on a map.
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What happens if Young Bros 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
- 00468300
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 May 1949 (77 years ago)
- Registered office
- The Ashes, Llandissilio, Clynderwen, Pembs, SA66 7TT
- Nature of business
- Construction of utility projects for fluids (SIC 42210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 14 March 2026
- Charges (mortgages)
- 1 outstanding of 2 registered
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
Other active civil engineering contractors.
Frequently asked questions
When are Young Bros Limited's accounts due?
Young Bros Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Young Bros 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 Young Bros Limited still trading?
Young Bros 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 Young Bros Limited do?
Young Bros Limited is registered under Construction of utility projects for fluids (SIC 42210).
How old is Young Bros Limited?
Young Bros Limited was incorporated on 10 May 1949, 77 years ago.
Who runs Young Bros Limited?
Young Bros Limited has 3 active directors. Their names and service addresses are on the Companies House register.
Who owns Young Bros Limited?
3 people or companies have significant control of Young Bros Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Young Bros 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 Young Bros 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.