- Companies
- Builders
- St Austell
- Mac Construction (Cornwall) Limited
Mac Construction (Cornwall) Limited
- Company number
- 09495413
- Incorporated
- 18 Mar 201511 years trading
- Registered office
- ST Denys House, 22 East Hill, St Austell, Cornwall, PL25 4TR
- Nature of business
- Construction of domestic buildings
Mac Construction (Cornwall) Limited is a 11-year-old private limited company registered in St Austell, company number 09495413, one of 29 building contractors in St Austell. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £137K (-98.3%) on the year before, to £2,359.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £270K against £314K owed within a year: 0.9 times cover.
- 24 employees on average, up from 23 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £2,359 | £0 | £270K | £314K | 24 |
| 31 Mar 2025 | £139K | £126K | £356K | £249K | 23 |
| 31 Mar 2024 | £209K | £195K | £393K | £209K | 23 |
| 31 Mar 2023 | £240K | £162K | £410K | £205K | 22 |
| 31 Mar 2022 | £179K | £162K | £361K | £189K | 20 |
| 31 Mar 2021 | £48K | £106K | £221K | £172K | 16 |
| 31 Mar 2020 | £34K | £93K | £244K | £242K | 13 |
| 31 Mar 2019 | £2,008 | £1,637 | £136K | £173K | 8 |
| 31 Mar 2018 | £13K | £24K | £175K | £190K | 6 |
| 31 Mar 2017 | £31K | £46K | £162K | £142K | 5 |
Where Mac Construction (Cornwall) Limited is registered
The registered office is in St Austell (PL25), in the Cornwall local authority area, South West. Show PL25 4TR on a map.
Other trade companies in PL25
- Platinum Window Care LimitedCleaning companies
- Aspire Land Property LimitedProperty developers
- Kernow Property Portfolio LtdProperty developers
- Bould Landscapes LimitedLandscapers and gardeners
- Rustic Homes LtdProperty developers
- Rustic Property LtdProperty developers
- Balustrade Solutions Cornwall LimitedInstallers
- R&L Developments Group LtdBuilders
Also registered at this address
21 other companies use the same registered office as Mac Construction (Cornwall) Limited.
- Askbs LimitedJoiners and carpenters
- Celtic Stone & Conservation LtdSpecialist contractors
- Cornwall Damp-Proofing LtdInstallers
- D and D Plastering LtdPlasterers
- DM Flooring LtdFloor and wall tilers
- G.Barnes LtdPlumbers and heating engineers
- Hanbury Grange Homes LimitedProperty developers
- J B Hill Motor Mechanic LimitedMechanics and garages
- JLK Builders LimitedBuilders
- Kernowek Gardeners LtdLandscapers and gardeners
- KP & Sons Transport LtdMechanics and garages
- Long Ash Service Station LimitedMotor traders
- Mal-VW LimitedMechanics and garages
- Pro-Electric LimitedElectricians
- Rad Construction LtdBuilders
- Sam Rossi LimitedProperty developers
- Steve Drury Kitchens LimitedInstallers
- T C J Osborne LimitedMechanics and garages
- Tide Property Cornwall LimitedProperty developers
- Tidy Ladybird Cleaning Service LtdCleaning companies
- TMS (Technical Solutions) LimitedMotor traders
What happens if Mac Construction (Cornwall) 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 09495413
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 March 2015 (11 years ago)
- Registered office
- ST Denys House, 22 East Hill, St Austell, Cornwall, PL25 4TR
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 18 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 St Austell
Other active building contractors registered in St Austell.
- O'Mahoney Construction Ltd2012
- Oakvale South West Ltd2019
- Opus Design & Construction Ltd2019
- Rad Construction Ltd2018
- Rockhill Business Park Limited2005
- S Walden Construction Limited2024
- Sincock Buildings Ltd2023
- Spectrum Carpentry Limited2018
All building contractors in St Austell · All trades in St Austell · Builders across the UK
Frequently asked questions
When are Mac Construction (Cornwall) Limited's accounts due?
Mac Construction (Cornwall) Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Mac Construction (Cornwall) Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Mac Construction (Cornwall) Limited still trading?
Mac Construction (Cornwall) 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 Mac Construction (Cornwall) Limited do?
Mac Construction (Cornwall) Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Mac Construction (Cornwall) Limited?
Mac Construction (Cornwall) Limited was incorporated on 18 March 2015, 11 years ago.
What is the penalty if Mac Construction (Cornwall) 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 Mac Construction (Cornwall) 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.