- Companies
- Civil engineering
- March
- J Brownlow Limited
J Brownlow Limited
- Company number
- 06540320
- Incorporated
- 20 Mar 200818 years trading
- Registered office
- Daisy Cottage, Flaggrass Hill Road, March, Cambridgeshire, PE15 0BY
- Nature of business
- Construction of other civil engineering projects n.e.c.
J Brownlow Limited is a 18-year-old private limited company registered in March, company number 06540320, one of 16 civil engineering contractors in March. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £12K (+98.7%) on the year before, to £25K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £38K against £16K owed within a year: 2.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £25K | £38K | £16K | 1 | |
| 31 Mar 2024 | £12K | £2,898 | £17K | £7,505 | 1 |
| 31 Mar 2023 | £11K | £4,215 | £9,998 | £2,778 | 1 |
| 31 Mar 2022 | £25K | £7,056 | £35K | £15K | 1 |
| 31 Mar 2021 | £2,941 | £5,950 | £19K | £22K | 1 |
| 31 Mar 2020 | -£6,329 | £945 | £5,696 | £20K | 1 |
| 31 Mar 2019 | £6,711 | £2,605 | £12K | £7,011 | 1 |
| 31 Mar 2018 | £5,624 | £5,717 | £15K | £11K | 1 |
| 31 Mar 2017 | £365 | £2,899 | £8,330 | £10K | 1 |
| 31 Mar 2016 | £5,459 | £985 | £14K | £10K |
Where J Brownlow Limited is registered
The registered office is in March (PE15), in the Fenland local authority area, East of England. Show PE15 0BY on a map.
Other trade companies in PE15
- Ace Resin Surfacing LimitedFloor and wall tilers
- Impway Connections LimitedCivil engineering
- Zee Plus Services LtdFinishing trades
- Coreshine LtdCleaning companies
- J Kirby Utilities LtdCivil engineering
- M B Concierge LtdMotor traders
- WS Civil Consultant LtdCivil engineering
- Ga Motors LimitedMotor traders
What happens if J Brownlow 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06540320
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 March 2008 (18 years ago)
- Registered office
- Daisy Cottage, Flaggrass Hill Road, March, Cambridgeshire, PE15 0BY
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 20 March 2026
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 March
Other active civil engineering contractors registered in March.
- J Kirby Utilities Ltd2026
- LJR Construction Ltd2023
- MJS Civils (March) Ltd.2014
- Newton Utilities Limited2023
- Phil Purse Construction Ltd2018
- SJB Safety Ltd2022
- Stakeout Engineering Ltd2022
- WS Civil Consultant Ltd2026
All civil engineering contractors in March · All trades in March · Civil engineering across the UK
Frequently asked questions
When are J Brownlow Limited's accounts due?
J Brownlow Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is J Brownlow Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is J Brownlow Limited still trading?
J Brownlow 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 J Brownlow Limited do?
J Brownlow Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is J Brownlow Limited?
J Brownlow Limited was incorporated on 20 March 2008, 18 years ago.
What is the penalty if J Brownlow 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 J Brownlow 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.