- Companies
- Groundworks and demolition
- Billericay
- O'Brien Groundwork Ltd
O'Brien Groundwork Ltd
- Company number
- 11909163
- Incorporated
- 27 Mar 20197 years trading
- Registered office
- Room 3, Foremost House, Radford Way, Billericay, Essex, CM12 0BT
- Nature of business
- Site preparation
O'Brien Groundwork Ltd is a 7-year-old private limited company registered in Billericay, company number 11909163, one of the UK's groundworks and demolition companies. 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 up £44 (+33.1%) on the year before, to £177.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £23K against £30K owed within a year: 0.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £177 | £23K | £30K | 2 | |
| 31 Mar 2025 | £133 | £7,499 | £35K | £51K | 2 |
| 31 Mar 2024 | £540 | £5,663 | £34K | £29K | 2 |
| 31 Mar 2023 | £4,359 | £27K | £48K | £36K | 2 |
| 31 Mar 2022 | £14K | £30K | £49K | £23K | 2 |
| 31 Mar 2021 | £349 | £18K | £27K | £8,034 | 2 |
| 31 Mar 2020 | £6,392 | £415 | £28K | £22K | 2 |
Where O'Brien Groundwork Ltd is registered
The registered office is in Billericay (CM12), in the Basildon local authority area, East of England. Show CM12 0BT on a map.
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- Hallmark Care Homes Developments (No.3) LimitedProperty developers
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Also registered at this address
15 other companies use the same registered office as O'Brien Groundwork Ltd.
- Abbacove LimitedElectricians
- Arnhem Architectural Services LimitedCivil engineering
- Bandedge LimitedSpecialist contractors
- Basse Solutions LtdFacilities management
- Invictus Cleaning Services LtdCleaning companies
- Krisp & Klean Services LimitedCleaning companies
- Lakeview Automotive LimitedMachinery repair and installation
- LPS Scaffolding LtdScaffolders
- M J Curtis LimitedFinishing trades
- MCS Building & Refurb Services LtdFinishing trades
- Mile End Maintenance LtdFinishing trades
- Property Rejuvenation LimitedSpecialist contractors
- RJC Automation LtdMachinery repair and installation
- The Treadstone Group (Europe) LtdMechanics and garages
- We MOT LtdMechanics and garages
What happens if O'Brien Groundwork 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 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
- 11909163
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 March 2019 (7 years ago)
- Registered office
- Room 3, Foremost House, Radford Way, Billericay, Essex, CM12 0BT
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 26 March 2026
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Billericay
Other active groundworks and demolition companies registered in Billericay.
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Frequently asked questions
When are O'Brien Groundwork Ltd's accounts due?
O'Brien Groundwork Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is O'Brien Groundwork Ltd'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 O'Brien Groundwork Ltd still trading?
O'Brien Groundwork 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 O'Brien Groundwork Ltd do?
O'Brien Groundwork Ltd is registered under Site preparation (SIC 43120).
How old is O'Brien Groundwork Ltd?
O'Brien Groundwork Ltd was incorporated on 27 March 2019, 7 years ago.
What is the penalty if O'Brien Groundwork 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 O'Brien Groundwork 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.