- Companies
- Specialist contractors
- Southport
- Platinum Civil Engineering Ltd
Platinum Civil Engineering Ltd
- Company number
- 09990272
- Incorporated
- 5 Feb 201610 years trading
- Registered office
- Unit 2 Carpa House Blowick Business Park, Crowland Street, Southport, PR9 7SJ
- Nature of business
- Other specialised construction activities n.e.c.
Platinum Civil Engineering Ltd is a 10-year-old private limited company registered in Southport, company number 09990272, one of 57 specialist construction companies in Southport. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £259K (-846.4%) on the year before, to -£229K.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £178K against £480K owed within a year: 0.4 times cover.
- 14 employees on average, up from 13 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£229K | £1,682 | £178K | £480K | 14 |
| 30 Sep 2024 | £31K | £116K | £856K | £855K | 13 |
| 31 Mar 2023 | £281K | £65K | £918K | £596K | 9 |
| 31 Mar 2022 | £25K | £34K | £481K | £354K | 9 |
| 31 Mar 2021 | £14K | £43K | £387K | £216K | 5 |
| 31 Mar 2020 | £20K | £15K | £166K | £172K | 5 |
| 31 Mar 2019 | £30K | £21K | £147K | £144K | 3 |
| 31 Mar 2018 | £24K | £8,329 | £98K | £89K | 3 |
| 31 Mar 2017 | £65K | £149K | £233K | £174K | 2 |
Where Platinum Civil Engineering Ltd is registered
The registered office is in Southport (PR9), in the Sefton local authority area, North West. Show PR9 7SJ on a map.
Other trade companies in PR9
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- Bird Building & Construction LtdBuilders
- Hit Happens Arc LimitedMechanics and garages
- Nja Construction Services LtdProperty developers
- Silverline Renovations LtdPlasterers
- Nestra Living LtdFinishing trades
- Churchtown Tree Surgery LimitedLandscapers and gardeners
What happens if Platinum Civil Engineering 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 09990272
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 February 2016 (10 years ago)
- Registered office
- Unit 2 Carpa House Blowick Business Park, Crowland Street, Southport, PR9 7SJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 4 February 2026
- Charges (mortgages)
- 1 outstanding of 2 registered
- Previous names
- W J Atkins Contractors Ltd (until 13 Apr 2016)
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 Southport
Other active specialist construction companies registered in Southport.
- Pleasant Carpentry Limited2021
- R.E.N.D Pave Limited2002
- Rail Access Solutions Ltd2025
- Rhea-Smith & Co Ltd2026
- Ric Builds Ltd2024
- RPC Building Contractors Ltd2021
- S Porter Construction Limited2017
- S Q & E Limited2006
All specialist construction companies in Southport · All trades in Southport · Specialist contractors across the UK
Frequently asked questions
When are Platinum Civil Engineering Ltd's accounts due?
Platinum Civil Engineering Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Platinum Civil Engineering Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Platinum Civil Engineering Ltd still trading?
Platinum Civil Engineering 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 Platinum Civil Engineering Ltd do?
Platinum Civil Engineering Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Platinum Civil Engineering Ltd?
Platinum Civil Engineering Ltd was incorporated on 5 February 2016, 10 years ago.
What is the penalty if Platinum Civil Engineering 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 Platinum Civil Engineering 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.