- Companies
- Civil engineering
- Merthyr Tydfil
- Green Light Rail & Construction Ltd
Green Light Rail & Construction Ltd
- Company number
- 14578984
- Incorporated
- 9 Jan 20233 years trading
- Registered office
- Orbit Business Centre, Rhydycar Business Park, Merthyr Tydfil, CF48 1DL
- Nature of business
- Construction of other civil engineering projects n.e.c.
Green Light Rail & Construction Ltd is a 3-year-old private limited company registered in Merthyr Tydfil, company number 14578984, one of 36 civil engineering contractors in Merthyr Tydfil. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £107K (+296.8%) on the year before, to £143K.
- Current assets of £224K against £102K owed within a year: 2.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £143K | £224K | £102K | 2 | |
| 31 Jan 2024 | £36K | £45K | £18K | 2 |
Public contracts won
Green Light Rail & Construction Ltd has one public sector contract award on record (2025). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Merthyr Tydfil County Borough Council | Fframwaith CBSMT ar gyfer Darparu Gwasanaethau Diogelwch 2025 Highway Maintenance 2025 Framework Agreement | Ceiling, not shown | 10 Oct 2025 |
Where Green Light Rail & Construction Ltd is registered
The registered office is in Merthyr Tydfil (CF48), in the Merthyr Tydfil local authority area, Wales. Show CF48 1DL on a map.
Other trade companies in CF48
- Valley Roofing Building & Carpentry LimitedRoofers
- Ajl Rail/Civil Engineering LtdCivil engineering
- M&K Valeting LtdCleaning companies
- Mdgroundworks LtdGroundworks and demolition
- Craig Lloyd Groundworks LtdCivil engineering
- Noarc Electrical LtdElectricians
- Elt Brickwork LimitedBuilders
- JBH Decorating LimitedPainters and decorators
What happens if Green Light Rail & Construction Ltd 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 14578984
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 January 2023 (3 years ago)
- Registered office
- Orbit Business Centre, Rhydycar Business Park, Merthyr Tydfil, CF48 1DL
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 25 August 2026
- Charges (mortgages)
- 1 outstanding of 3 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 in Merthyr Tydfil
Other active civil engineering contractors registered in Merthyr Tydfil.
- HSS Brickwork & Paving Limited2018
- J & T Telecoms Ltd2024
- J Hope Ltd2021
- JC Davies Rail Ltd2015
- JLC Groundwork Contractors Ltd2021
- Joe Nettle Rail Ltd2025
- KLR (Services) Ltd2014
- LJ Hubbard Ltd2014
All civil engineering contractors in Merthyr Tydfil · All trades in Merthyr Tydfil · Civil engineering across the UK
Frequently asked questions
When are Green Light Rail & Construction Ltd's accounts due?
Green Light Rail & Construction Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Green Light Rail & Construction Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Green Light Rail & Construction Ltd still trading?
Green Light Rail & Construction Ltd 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 Green Light Rail & Construction Ltd do?
Green Light Rail & Construction Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Green Light Rail & Construction Ltd?
Green Light Rail & Construction Ltd was incorporated on 9 January 2023, 3 years ago.
Has Green Light Rail & Construction Ltd won public sector contracts?
Yes. Green Light Rail & Construction Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Merthyr Tydfil County Borough Council.
What is the penalty if Green Light Rail & Construction Ltd 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 Green Light Rail & Construction Ltd 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.