- Companies
- Specialist contractors
- Port Glasgow
- Zenit Construction Ltd
Zenit Construction Ltd
- Company number
- SC650863
- Incorporated
- 8 Jan 20206 years trading
- Registered office
- Unit 1 Kelburn Business Park, Building B, Port Glasgow, PA14 6BL
- Nature of business
- Other specialised construction activities n.e.c.
Zenit Construction Ltd is a 6-year-old private limited company registered in Port Glasgow, company number SC650863, one of 10 specialist construction companies in Port Glasgow. 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 £182K (+127.1%) on the year before, to £326K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £720K against £389K owed within a year: 1.9 times cover.
- 27 employees on average, up from 22 the year before.
- 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 Jan 2025 | £326K | £544K | £720K | £389K | 27 |
| 31 Jan 2024 | £143K | £119K | £562K | £402K | 22 |
| 31 Jan 2023 | £104K | £243K | 14 | ||
| 31 Jan 2022 | £6,376 | £165K | £120K | 11 | |
| 31 Jan 2021 | £4,069 | £84K | £35K | 15 |
Where Zenit Construction Ltd is registered
The registered office is in Port Glasgow (PA14), in the Inverclyde local authority area, Scotland. Show PA14 6BL on a map.
Other trade companies in PA14
- Nextgen All Trades LtdJoiners and carpenters
- Arc Specialist Construction Services LtdSpecialist contractors
- Cbmso LtdCivil engineering
- At MS0 LimitedSpecialist contractors
- PM Roofing and Landscaping Contracts LimitedRoofers
- Wheelie-Quick Diamond Cutting LimitedMechanics and garages
- B&S Ropes LtdCivil engineering
- Stag and Stay LtdProperty developers
What happens if Zenit 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
- SC650863
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 January 2020 (6 years ago)
- Registered office
- Unit 1 Kelburn Business Park, Building B, Port Glasgow, PA14 6BL
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 7 January 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Port Glasgow
Other active specialist construction companies registered in Port Glasgow.
- Arc Specialist Construction Services Ltd2026
- At MS0 Limited2026
- C Tipping Scaffolding Ltd2025
- CC&E Rigging Solutions Ltd2019
- Falcon High Access Limited2019
- Mwilaco Limited2021
- Ravensure Properties Limited2015
- TC Facilities Limited2013
All specialist construction companies in Port Glasgow · All trades in Port Glasgow · Specialist contractors across the UK
Frequently asked questions
When are Zenit Construction Ltd's accounts due?
Zenit Construction Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Zenit 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 Zenit Construction Ltd still trading?
Zenit 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 Zenit Construction Ltd do?
Zenit Construction Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Zenit Construction Ltd?
Zenit Construction Ltd was incorporated on 8 January 2020, 6 years ago.
What is the penalty if Zenit 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 Zenit 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.