- Companies
- Civil engineering
- Penryn
- J.M.C.M. Ltd
J.M.C.M. Ltd
- Company number
- 07356736
- Incorporated
- 25 Aug 201016 years trading
- Registered office
- 69 Cunningham Park, Mabe Burnthouse, Penryn, Cornwall, TR10 9HB
- Nature of business
- Construction of other civil engineering projects n.e.c.
J.M.C.M. Ltd is a 16-year-old private limited company registered in Penryn, company number 07356736, one of the UK's civil engineering contractors. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 £2,135 (-38.9%) on the year before, to -£7,622.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £233K against £236K owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | -£7,622 | £2,532 | £233K | £236K | 0 |
| 31 Dec 2023 | -£5,487 | £11K | £6,955 | 0 | |
| 31 Dec 2022 | -£3,832 | £17K | £6,955 | 0 | |
| 31 Dec 2021 | £100 | £15K | £25K | £9,252 | 2 |
| 31 Dec 2020 | £13K | £29K | £18K | 1 | |
| 31 Dec 2019 | £12K | £30K | £19K | ||
| 31 Dec 2018 | £895 | £18K | £18K | ||
| 31 Dec 2017 | £3,343 | £9,075 | £6,731 | ||
| 31 Dec 2016 | -£1,308 | £8,252 | £11K | ||
| 31 Dec 2015 | £1,383 | £5,217 | £24K | £24K |
Where J.M.C.M. Ltd is registered
The registered office is in Penryn (TR10), in the Cornwall local authority area, South West. Show TR10 9HB on a map.
Other trade companies in TR10
- Morva Properties LtdProperty developers
- Cornwall Exterior Cleaning LtdCleaning companies
- Granite Coast Property Group LimitedProperty developers
- Saltwater Services and Fabrication LtdMachinery repair and installation
- Salt & Stone Decorating LtdPainters and decorators
- National Charging Solutions LtdElectricians
- SP (Cornwall) LtdProperty developers
- Ironclad Roofing LimitedInstallers
Also registered at this address
1 other company uses the same registered office as J.M.C.M. Ltd.
- Cornish Service Co. LtdLandscapers and gardeners
What happens if J.M.C.M. Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 07356736
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2010 (16 years ago)
- Registered office
- 69 Cunningham Park, Mabe Burnthouse, Penryn, Cornwall, TR10 9HB
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 24 September 2025
- Previous names
- 5 Valleys Ground Works & Renovations Ltd (until 31 Mar 2017)
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 Penryn
Other active civil engineering contractors registered in Penryn.
All civil engineering contractors in Penryn · All trades in Penryn · Civil engineering across the UK
Frequently asked questions
When are J.M.C.M. Ltd's accounts due?
J.M.C.M. Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is J.M.C.M. Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is J.M.C.M. Ltd still trading?
J.M.C.M. Ltd is listed as active on the Companies House register (checked 13 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 J.M.C.M. Ltd do?
J.M.C.M. Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is J.M.C.M. Ltd?
J.M.C.M. Ltd was incorporated on 25 August 2010, 16 years ago.
What is the penalty if J.M.C.M. 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 J.M.C.M. Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.