- Company number
- 12061039
- Incorporated
- 20 Jun 20197 years trading
- Registered office
- Bryn Awelon, Penrallt, Pwllheli, LL53 5UE
- Nature of business
- Construction of domestic buildings
Adeiladwr GJ Builder Ltd is a 7-year-old private limited company registered in Pwllheli, company number 12061039, one of 21 building contractors in Pwllheli. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 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 down £6,010 (-100%) on the year before, to £2.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £4,573 against £4,571 owed within a year: 1.0 times cover.
- 1 employee 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 |
|---|---|---|---|---|---|
| 30 Jun 2026 | £2 | £4,573 | £4,571 | 1 | |
| 30 Jun 2025 | £6,012 | £5,117 | £8,445 | 1 | |
| 30 Jun 2024 | £14K | £7,659 | £5,807 | 1 | |
| 30 Jun 2023 | £5,428 | £2,924 | £3,920 | 1 | |
| 30 Jun 2022 | £1,453 | £5,641 | £6,940 | 2 | |
| 30 Jun 2021 | £19 | £9,925 | £13K | 2 | |
| 30 Jun 2020 | £1,295 | £5,746 | £8,285 | 1 |
Where Adeiladwr GJ Builder Ltd is registered
The registered office is in Pwllheli (LL53), in the Gwynedd local authority area, Wales. Show LL53 5UE on a map.
Other trade companies in LL53
- E Thomas Plumbing and Heating Plymio A Gwresogi CyfPlumbers and heating engineers
- Cadelio CyfSpecialist contractors
- Halpine Construction LimitedJoiners and carpenters
- Feucht Engineering LtdMachinery repair and installation
- Stuart Livingstone LtdPlumbers and heating engineers
- Teiars Hughes Tyres LtdMechanics and garages
- Saevar Solutions LtdCleaning companies
- Dragon Detailing & Body Repairs LtdMotor traders
What happens if Adeiladwr GJ 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 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12061039
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2019 (7 years ago)
- Registered office
- Bryn Awelon, Penrallt, Pwllheli, LL53 5UE
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 19 June 2025
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 Pwllheli
Other active building contractors registered in Pwllheli.
- Adeiladwyr North Wales Builders Ltd2024
- Amcen Felinheli Cyf2011
- Clannad Ltd2024
- Derwen Llyn Construction Limited2015
- Dylan M Williams Adeiladwr Cyf2023
- G L Jones (Builders) Limited2005
- Glyn Owen A'i Gwmni Cyfyngedig2007
- Gweithdy Kampala Workshop Cyfyngedig2009
All building contractors in Pwllheli · All trades in Pwllheli · Builders across the UK
Frequently asked questions
When are Adeiladwr GJ Builder Ltd's accounts due?
Adeiladwr GJ Builder Ltd's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is Adeiladwr GJ Builder Ltd's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is Adeiladwr GJ Builder Ltd still trading?
Adeiladwr GJ Builder Ltd is listed as active on the Companies House register (checked 13 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 Adeiladwr GJ Builder Ltd do?
Adeiladwr GJ Builder Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Adeiladwr GJ Builder Ltd?
Adeiladwr GJ Builder Ltd was incorporated on 20 June 2019, 7 years ago.
What is the penalty if Adeiladwr GJ 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 Adeiladwr GJ Builder Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.