- Companies
- Civil engineering
- Kings Langley
- McMullan Construction Limited
McMullan Construction Limited
- Company number
- 10943109
- Incorporated
- 1 Sep 20179 years trading
- Registered office
- Sas House Friarswood, Chipperfield Road, Kings Langley, Hertfordshire, WD4 9JB
- Nature of business
- Construction of other civil engineering projects n.e.c.
McMullan Construction Limited is a 9-year-old private limited company registered in Kings Langley, company number 10943109, one of the UK's civil engineering contractors. 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 £11K (-12.7%) on the year before, to £76K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £779K against £663K owed within a year: 1.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £76K | £190K | £779K | £663K | 2 |
| 30 Sep 2024 | £87K | £71K | £450K | £298K | 2 |
| 30 Sep 2023 | £44K | £27K | £255K | £114K | 1 |
| 30 Sep 2022 | £66K | £3,604 | £370K | £191K | 2 |
| 30 Sep 2021 | £115K | £12K | £372K | £197K | -1 |
| 30 Sep 2020 | £114K | £33K | £287K | £129K | -1 |
| 29 Oct 2019 | £78K | £69K | £206K | £132K | -1 |
| 30 Sep 2019 | £78K | £69K | £206K | £132K | 1 |
| 30 Sep 2018 | £1,636 | £15K | £134K | £134K | 1 |
Who runs and owns McMullan Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| K*** M*** | Director | Sep 2017 |
People with significant control (2)
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Metro Bank PLC | Outstanding | Dec 2021 |
Where McMullan Construction Limited is registered
The registered office is in Kings Langley (WD4), in the Dacorum local authority area, East of England. Show WD4 9JB on a map.
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Also registered at this address
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What happens if McMullan Construction 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 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
- 10943109
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 September 2017 (9 years ago)
- Registered office
- Sas House Friarswood, Chipperfield Road, Kings Langley, Hertfordshire, WD4 9JB
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 6 August 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Kings Langley
Other active civil engineering contractors registered in Kings Langley.
All civil engineering contractors in Kings Langley · All trades in Kings Langley · Civil engineering across the UK
Frequently asked questions
When are McMullan Construction Limited's accounts due?
McMullan Construction Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is McMullan Construction Limited'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 McMullan Construction Limited still trading?
McMullan Construction Limited is listed as active on the Companies House register (checked 12 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 McMullan Construction Limited do?
McMullan Construction Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is McMullan Construction Limited?
McMullan Construction Limited was incorporated on 1 September 2017, 9 years ago.
Who runs McMullan Construction Limited?
McMullan Construction Limited has 1 active director, the longest-serving appointed in Sep 2017. Their names and service addresses are on the Companies House register.
Who owns McMullan Construction Limited?
2 people or companies have significant control of McMullan Construction Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if McMullan Construction 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 McMullan Construction Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.