- Company number
- 05208501
- Incorporated
- 17 Aug 200422 years trading
- Registered office
- 47 Brize Norton Road, Minster Lovell, Witney, OX29 0SG
- Nature of business
- Construction of commercial buildings
Opalex Limited is a 22-year-old private limited company registered in Witney, company number 05208501, one of 108 building contractors in Witney. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £67K (-43.7%) on the year before, to £86K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | £86K | £477 | £30K | 0 | |
| 31 Aug 2024 | £153K | £7,213 | £24K | 0 | |
| 31 Aug 2023 | £161K | £9,439 | £9,439 | £9,974 | 1 |
| 31 Aug 2022 | £171K | £77K | £85K | £38K | 1 |
| 31 Aug 2021 | £172K | £136K | £138K | £67K | 2 |
| 31 Aug 2020 | £176K | £96K | £96K | £57K | 2 |
| 31 Aug 2019 | £205K | £27K | £55K | £38K | |
| 31 Aug 2018 | £235K | £70K | £126K | £70K | |
| 31 Aug 2017 | £199K | £6,976 | £85K | £53K | |
| 31 Aug 2016 | £221K | £139K | £145K | £89K |
Where Opalex Limited is registered
The registered office is in Witney (OX29), in the West Oxfordshire local authority area, South East. Show OX29 0SG on a map.
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What happens if Opalex 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 05208501
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 August 2004 (22 years ago)
- Registered office
- 47 Brize Norton Road, Minster Lovell, Witney, OX29 0SG
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 17 August 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Opalex Building Limited (until 12 May 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 Witney
Other active building contractors registered in Witney.
- Oxwolds Ltd2023
- Park's Edge Developments Ltd2016
- Portobello Property Developments Limited2021
- Q & Q Construction Carpentry Ltd2024
- Quad Construction and Maintenance Limited2022
- Quartermain Construction Ltd2010
- Ray Hessey Limited2001
- Refurb Commercial Developments Ltd2021
All building contractors in Witney · All trades in Witney · Builders across the UK
Frequently asked questions
When are Opalex Limited's accounts due?
Opalex Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Opalex Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Opalex Limited still trading?
Opalex 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 Opalex Limited do?
Opalex Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Opalex Limited?
Opalex Limited was incorporated on 17 August 2004, 22 years ago.
What is the penalty if Opalex 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 Opalex 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.