- Companies
- Civil engineering
- Barnet
- Mullen Civil Engineering Ltd
Mullen Civil Engineering Ltd
- Company number
- 07969125
- Incorporated
- 29 Feb 201214 years trading
- Registered office
- 5 Beauchamp Court, Victors Way, Barnet, London, EN5 5TZ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Mullen Civil Engineering Ltd is a 14-year-old private limited company registered in Barnet, company number 07969125, one of 32 civil engineering contractors in Barnet. Its next accounts are due at Companies House on 28 November 2026, and its first CT600 is due at HMRC on 31 August 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Mullen Civil Engineering LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £342K (-15.5%) on the year before, to £1.9M.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- 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 Aug 2024 | £1.9M | £1.5M | 0 | ||
| 31 Aug 2023 | £2.2M | £0 | £1.7M | £2M | 1 |
| 31 Aug 2022 | £2.6M | £27K | £1.6M | £3.3M | 1 |
| 31 Aug 2021 | £2.1M | £121K | £2M | £3M | 1 |
| 31 Aug 2020 | £1.5M | £41K | £755K | £1.2M | 1 |
| 31 Aug 2019 | £1.2M | £311K | £759K | £1.4M | |
| 31 Aug 2018 | £1M | £165K | £559K | £1.5M | |
| 31 Aug 2017 | £805K | £486K | £821K | £582K | |
| 28 Feb 2016 | £473K | £435K | £558K | £455K | |
| 28 Feb 2015 | £187K | £70K | £164K | £209K |
Where Mullen Civil Engineering Ltd is registered
The registered office is in Barnet (EN5), in the Barnet local authority area, London. Show EN5 5TZ on a map.
Other trade companies in EN5
- Paysa Gas LtdPlumbers and heating engineers
- Greatway Business LtdInstallers
- Je Mobile Tyres LtdMechanics and garages
- Barnet Air LtdPlumbers and heating engineers
- Hutch Electrical LtdElectricians
- Nexflow Mechanical LtdSpecialist contractors
- A J Plant LtdMotor traders
- Plumbing365 LtdPlumbers and heating engineers
Also registered at this address
19 other companies use the same registered office as Mullen Civil Engineering Ltd.
- A J Plant LtdMotor traders
- Andrew Carney U.K. LimitedSpecialist contractors
- Avital LimitedProperty developers
- Biddenfield Holdings LtdProperty developers
- C T Lawrence LtdSpecialist contractors
- Claddagh Developments LimitedInstallers
- Deeley LimitedInstallers
- Grid Line Foundations LimitedProperty developers
- Gridline Plant Hire LimitedSpecialist contractors
- Harte Civil Engineering LtdCivil engineering
- Kilcoyne & Scahill Motors UK LtdMotor traders
- Leanes Kitchens & Bedrooms (UK) LimitedInstallers
- Lec Serve LimitedElectricians
- Lintonhill LtdProperty developers
- MH Costa Construction LimitedProperty developers
- Nadlan One LimitedProperty developers
- NJK Brickwork LimitedInstallers
- Northampton Commercial LimitedProperty developers
- Walls Forge UK LtdInstallers
What happens if Mullen 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 28 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Nov 2026 to 28 Dec 2026 | £150 |
| 1 to 3 months late | 29 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 28 May 2027 | £750 |
| More than 6 months late | From 29 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 07969125
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 February 2012 (14 years ago)
- Registered office
- 5 Beauchamp Court, Victors Way, Barnet, London, EN5 5TZ
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 31 January 2026
- Charges (mortgages)
- 1 outstanding of 8 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 Barnet
Other active civil engineering contractors registered in Barnet.
- NJW Civil Engineering Ltd2021
- Noel O'Shea Plant UK Ltd2016
- Nolan Construction Ltd2018
- P J Carter (Building and Property Maintenance) Limited1982
- Peter Hall Sports Ltd2026
- PHL Plant Hire Ltd2025
- PJB Building Services Limited2015
- RCM Mechanical Ltd2018
All civil engineering contractors in Barnet · All trades in Barnet · Civil engineering across the UK
Frequently asked questions
When are Mullen Civil Engineering Ltd's accounts due?
Mullen Civil Engineering Ltd's next accounts are due at Companies House by 28 November 2026 (in 46 days), covering the period to 28 February 2026.
When is Mullen Civil Engineering Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 August 2025, due by 31 August 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mullen Civil Engineering Ltd still trading?
Mullen 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 Mullen Civil Engineering Ltd do?
Mullen Civil Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Mullen Civil Engineering Ltd?
Mullen Civil Engineering Ltd was incorporated on 29 February 2012, 14 years ago.
What is the penalty if Mullen 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 Mullen 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.