- Companies
- Finishing trades
- Harrow
- O'Neills Developments Limited
O'Neills Developments Limited
- Company number
- 06491820
- Incorporated
- 4 Feb 200818 years trading
- Registered office
- Printing House, 66 Lower Road, Harrow, Middlesex, HA2 0DH
- Nature of business
- Other building completion and finishing
O'Neills Developments Limited is a 18-year-old private limited company registered in Harrow, company number 06491820, one of 251 building finishing companies in Harrow. Its next accounts are due at Companies House on 27 November 2026, and the CT600 for the period to 27 February 2026 is due at HMRC on 27 February 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 £1,398 (+0.5%) on the year before, to £312K.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £2.8M against £482K owed within a year: 5.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £312K | £25K | £2.8M | £482K | 0 |
| 29 Feb 2024 | £310K | £7,261 | £2.8M | £478K | 0 |
| 28 Feb 2023 | £245K | £13K | £2.8M | £465K | 0 |
| 28 Feb 2022 | £209K | £6,397 | £2.7M | £1.3M | 0 |
| 28 Feb 2021 | £205K | £29K | £2.6M | £461K | 0 |
| 29 Feb 2020 | £127K | £21K | £2.6M | £503K | 0 |
| 28 Feb 2019 | £98K | £2,371 | £2.6M | £1.5M | |
| 28 Feb 2018 | £66K | £78K | £2.1M | £843K | |
| 28 Feb 2017 | £49K | £248K | £1.2M | £1.1M | |
| 29 Feb 2016 | £39K | £6,909 | £854K |
Where O'Neills Developments 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
Also registered at this address
4 other companies use the same registered office as O'Neills Developments Limited.
- Garrett Developments LimitedPlasterers
- Odyssey Developments (UK) LimitedProperty developers
- Tom Flynn Electrical Contractor LimitedSpecialist contractors
- Tyremen UK LimitedMechanics and garages
What happens if O'Neills Developments 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 27 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Nov 2026 to 27 Dec 2026 | £150 |
| 1 to 3 months late | 28 Dec 2026 to 27 Feb 2027 | £375 |
| 3 to 6 months late | 28 Feb 2027 to 27 May 2027 | £750 |
| More than 6 months late | From 28 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Feb 2027 | £200 |
| 3 months late | 27 May 2027 | another £200 |
| 6 months late | 27 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 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
- 06491820
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 February 2008 (18 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
- 27 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 4 February 2026
- Charges (mortgages)
- 6 outstanding of 7 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.
- 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
- Pancon Construction Limited2004
All building finishing companies in Harrow · All trades in Harrow · Finishing trades across the UK
Frequently asked questions
When are O'Neills Developments Limited's accounts due?
O'Neills Developments Limited's next accounts are due at Companies House by 27 November 2026 (in 46 days), covering the period to 27 February 2026.
When is O'Neills Developments Limited's CT600 due?
The CT600 for the period to 27 February 2026 is due at HMRC by 27 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 28 November 2026.
Is O'Neills Developments Limited still trading?
O'Neills Developments 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 Developments Limited do?
O'Neills Developments Limited is registered under Other building completion and finishing (SIC 43390).
How old is O'Neills Developments Limited?
O'Neills Developments Limited was incorporated on 4 February 2008, 18 years ago.
What is the penalty if O'Neills Developments 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 Developments 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.