- Companies
- Property developers
- Caernarfon
- Adeiladau Ansawdd Arbennig Cyf
Adeiladau Ansawdd Arbennig Cyf
- Company number
- 15530408
- Incorporated
- 28 Feb 20242 years trading
- Registered office
- 16 Ael Y Garth, Caernarfon, LL55 1HA
- Nature of business
- Development of building projects; Agents involved in the sale of timber and building materials
Adeiladau Ansawdd Arbennig Cyf is a 2-year-old private limited company registered in Caernarfon, company number 15530408, one of 14 property development companies in Caernarfon. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 28 February 2025, as filed at Companies House.
Where Adeiladau Ansawdd Arbennig Cyf is registered
The registered office is in Caernarfon (LL55), in the Gwynedd local authority area, Wales. Show LL55 1HA on a map.
Other trade companies in LL55
- Gic Construction & Groundworks LtdInstallers
- Caton Site Welding LtdMachinery repair and installation
- Celtic Heritage Stonemasonry LimitedCivil engineering
- Celtic Heritage Construction LimitedBuilders
- 31 High ST LimitedProperty developers
- Robertson’S Property Services LtdSpecialist contractors
- Tirion Solutions LtdElectricians
- Melltd LtdProperty developers
What happens if Adeiladau Ansawdd Arbennig Cyf 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 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
- 15530408
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2024 (2 years ago)
- Registered office
- 16 Ael Y Garth, Caernarfon, LL55 1HA
- Nature of business
- Development of building projects (SIC 41100)
Agents involved in the sale of timber and building materials (SIC 46130) - Year end
- 29 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 27 February 2026
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Caernarfon
Other active property development companies registered in Caernarfon.
- Arfon Timber Frames Ltd2023
- Bocs Projects Limited2022
- Cae Glas Developments Ltd2014
- Edgar Jos Developments Ltd2025
- Ers Steel Properties Ltd2025
- Gwynedd Construction Ltd2016
- Gwynedd Development Company Limited2005
- McFay Developments Limited2019
All property development companies in Caernarfon · All trades in Caernarfon · Property developers across the UK
Frequently asked questions
When are Adeiladau Ansawdd Arbennig Cyf's accounts due?
Adeiladau Ansawdd Arbennig Cyf's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Adeiladau Ansawdd Arbennig Cyf's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Adeiladau Ansawdd Arbennig Cyf still trading?
Adeiladau Ansawdd Arbennig Cyf 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 Adeiladau Ansawdd Arbennig Cyf do?
Adeiladau Ansawdd Arbennig Cyf is registered under Development of building projects (SIC 41100); Agents involved in the sale of timber and building materials (SIC 46130).
How old is Adeiladau Ansawdd Arbennig Cyf?
Adeiladau Ansawdd Arbennig Cyf was incorporated on 28 February 2024, 2 years ago.
What is the penalty if Adeiladau Ansawdd Arbennig Cyf 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 Adeiladau Ansawdd Arbennig Cyf 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.