- Company number
- 05494818
- Incorporated
- 29 Jun 200521 years trading
- Registered office
- Units 1-2 Warrior Court, 9-11 Mumby Road, Gosport, Hampshire, PO12 1BS
- Nature of business
- Construction of domestic buildings
W.D. O'Neill Builder Ltd is a 21-year-old private limited company registered in Gosport, company number 05494818, one of 36 building contractors in Gosport. 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 £16K on the year before, to £17K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £105K against £100K owed within a year: 1.1 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £17K | £16K | £105K | £100K | 0 |
| 31 Mar 2024 | £272 | £8,596 | £48K | £53K | 0 |
| 31 Mar 2023 | £861 | £23K | £56K | £57K | 0 |
| 31 Mar 2022 | £205 | £64K | £89K | £77K | 0 |
| 31 Mar 2021 | £837 | £31K | £63K | £47K | 0 |
| 31 Mar 2020 | £217 | £25K | £34K | £41K | 0 |
| 31 Mar 2019 | £18K | £34K | £43K | £31K | |
| 31 Mar 2018 | £788 | £39K | £40K | £45K | |
| 31 Mar 2017 | £1,564 | £29K | £37K | £41K | 2 |
| 31 Mar 2016 | £8,482 | £3,561 | £29K | £25K |
Where W.D. O'Neill Builder Ltd is registered
The registered office is in Gosport (PO12), in the Gosport local authority area, South East. Show PO12 1BS on a map.
Other trade companies in PO12
- Paws at 32 LtdCleaning companies
- New Horizons (Hampshire) LtdFinishing trades
- Smart Energy Advisers LtdElectricians
- Easy Clean (Southern) LtdCleaning companies
- RHR Energy LtdPlumbers and heating engineers
- Mitchell Tsco LtdCivil engineering
- Lyle Morgans Master Thatcher LtdRoofers
- Pebbles Cleaning Group LtdCleaning companies
Also registered at this address
23 other companies use the same registered office as W.D. O'Neill Builder Ltd.
- A to B Autos LtdMechanics and garages
- A Upton LimitedPlumbers and heating engineers
- A1 Drivestyle LimitedSpecialist contractors
- Alver Contracts LimitedElectricians
- Barr Chimney Specialists LimitedFinishing trades
- Brooks Garden Services LtdLandscapers and gardeners
- Capa Gas & Plumbing LtdPlumbers and heating engineers
- Clemtech Engineering LtdMachinery repair and installation
- Clever Car Collection LtdMotor traders
- D R T Designs LtdProperty developers
- Goodens Masonry LimitedSpecialist contractors
- Hallmark Civil Engineering LtdCivil engineering
- Hampshire Vehicle Repairs LimitedMotor traders
- Hampshire Wall Coatings LimitedPlasterers
- Horndean Services LtdMotor traders
- Lyle Morgans Master Thatcher LtdRoofers
- M.O Aviation LtdMachinery repair and installation
- Papi Gas LtdPlumbers and heating engineers
- Rogate Services Ltd.Motor traders
- Sailwithjoe Ltd.Machinery repair and installation
- Southern Voltage Services LtdElectricians
- UK Civil and Marine Engineering LtdCivil engineering
- Watts on Installations LtdElectricians
What happens if W.D. O'Neill Builder 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 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
- 05494818
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 June 2005 (21 years ago)
- Registered office
- Units 1-2 Warrior Court, 9-11 Mumby Road, Gosport, Hampshire, PO12 1BS
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 April 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Gosport
Other active building contractors registered in Gosport.
- Ward Homes Construction Limited2020
- WJ Building & Decorating Services Ltd2026
- ZJ Property Maintenance Ltd2024
- A Lees Bricklaying Contractors Southern Limited2023
- Apr Renovations Ltd2025
- BB Groundworks Ltd2026
- Britannica Development Ltd2020
- Burns Building Ltd2024
All building contractors in Gosport · All trades in Gosport · Builders across the UK
Frequently asked questions
When are W.D. O'Neill Builder Ltd's accounts due?
W.D. O'Neill Builder Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is W.D. O'Neill Builder Ltd'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 W.D. O'Neill Builder Ltd still trading?
W.D. O'Neill Builder 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 W.D. O'Neill Builder Ltd do?
W.D. O'Neill Builder Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is W.D. O'Neill Builder Ltd?
W.D. O'Neill Builder Ltd was incorporated on 29 June 2005, 21 years ago.
What is the penalty if W.D. O'Neill Builder 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 W.D. O'Neill Builder 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.