- Companies
- Finishing trades
- Harrow
- O'Neills Building Company Limited
O'Neills Building Company Limited
- Company number
- 06987031
- Incorporated
- 11 Aug 200917 years trading
- Registered office
- Printing House, 66 Lower Road, Harrow, Middlesex, HA2 0DH
- Nature of business
- Other building completion and finishing
O'Neills Building Company Limited is a 17-year-old private limited company registered in Harrow, company number 06987031, one of 251 building finishing companies in Harrow. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
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 £20K (+4.1%) on the year before, to £502K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £192K against £72K owed within a year: 2.7 times cover.
- 4 employees on average during the year.
- 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 Dec 2024 | £502K | £14K | £192K | £72K | 4 |
| 31 Dec 2023 | £482K | £9,085 | £187K | £64K | 4 |
| 31 Dec 2022 | £433K | £1,998 | £181K | £43K | 4 |
| 31 Dec 2021 | £434K | £34K | £212K | £45K | 4 |
| 31 Dec 2020 | £364K | £19K | £175K | £76K | 4 |
| 31 Dec 2019 | £252K | £4,865 | £160K | £61K | 4 |
| 31 Dec 2018 | £189K | £2,696 | £158K | £37K | 4 |
| 31 Dec 2017 | £192K | £24K | £184K | £35K | 4 |
| 31 Dec 2016 | £90K | £418K | £418K | £134K | 3 |
| 31 Dec 2015 | £99K | £15K | £17K |
Where O'Neills Building Company Limited is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 0DH on a map.
Other trade companies in HA2
- KJP Engineering LtdElectricians
- JNJ Engineering LimitedCivil engineering
- Notting Hill Sew LtdRepair services
- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
Shared registered office
30 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if O'Neills Building Company 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
- 06987031
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2009 (17 years ago)
- Registered office
- Printing House, 66 Lower Road, Harrow, Middlesex, HA2 0DH
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 29 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 11 August 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Harrow
Other active building finishing companies registered in Harrow.
- O'Neills Developments Limited2008
- Omni Trading Solutions Ltd2025
- Oraanj Limited2018
- Orchid Ashley Place Edingburgh Limited2026
- Orchid Student Living (Cambridge) Ltd2026
- Orito Building Ltd2014
- Ovidiu S Ro Ltd2015
- Ovydavid Limited2015
All building finishing companies in Harrow · All trades in Harrow · Finishing trades across the UK
Frequently asked questions
When are O'Neills Building Company Limited's accounts due?
O'Neills Building Company Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is O'Neills Building Company Limited'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 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is O'Neills Building Company Limited still trading?
O'Neills Building Company 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 O'Neills Building Company Limited do?
O'Neills Building Company Limited is registered under Other building completion and finishing (SIC 43390).
How old is O'Neills Building Company Limited?
O'Neills Building Company Limited was incorporated on 11 August 2009, 17 years ago.
What is the penalty if O'Neills Building Company 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 O'Neills Building Company 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.