Dysynni Developments Ltd
- Company number
- 13480948
- Incorporated
- 28 Jun 20215 years trading
- Registered office
- Bryn Rhedyn, Llanelltyd, Dolgellau, LL40 2SU
- Nature of business
- Construction of domestic buildings
Dysynni Developments Ltd is a 5-year-old private limited company registered in Dolgellau, company number 13480948, one of the UK's building contractors. Companies House shows its accounts as overdue: they were due on 31 March 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 £25K (+113.5%) on the year before, to £46K.
- Current assets of £184K against £29K owed within a year: 6.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2024 | £46K | £184K | £29K | 2 | |
| 30 Jun 2023 | £22K | £185K | £29K | 2 | |
| 30 Jun 2022 | £17K | £175K | £400 | 2 |
Where Dysynni Developments Ltd is registered
The registered office is in Dolgellau (LL40), in the Gwynedd local authority area, Wales. Show LL40 2SU on a map.
Other trade companies in LL40
- Resq 247 LtdMechanics and garages
- Pressing Matters Dolgellau LtdCleaning companies
- Stocks Sparkling Service LtdCleaning companies
- MDT Structural Solutions UK LtdProperty developers
- Hendre Garage LimitedMechanics and garages
- Gwasanaethau Adeiladu Gwyrdd CyfProperty developers
- Adi Extra Services LtdBuilders
- Lowe Maintenance Services LtdPlumbers and heating engineers
What happens if Dysynni Developments Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2026 to 30 Apr 2026 | £150 |
| 1 to 3 months late | 1 May 2026 to 30 Jun 2026 | £375 |
| 3 to 6 months late | 1 Jul 2026 to 30 Sep 2026 | £750 |
| More than 6 months late | From 1 Oct 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2026 | £200 |
| 3 months late | 30 Sep 2026 | another £200 |
| 6 months late | 30 Dec 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2027 | 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
- 13480948
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2021 (5 years ago)
- Registered office
- Bryn Rhedyn, Llanelltyd, Dolgellau, LL40 2SU
- 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 2024
- Last confirmation statement
- 7 March 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
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
Other active building contractors.
Frequently asked questions
When are Dysynni Developments Ltd's accounts due?
Dysynni Developments Ltd's accounts were due at Companies House on 31 March 2026 and the register shows them as overdue.
When is Dysynni Developments Ltd's CT600 due?
The CT600 for the period to 30 June 2025 is due at HMRC by 30 June 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2026.
Is Dysynni Developments Ltd still trading?
Dysynni Developments 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 Dysynni Developments Ltd do?
Dysynni Developments Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Dysynni Developments Ltd?
Dysynni Developments Ltd was incorporated on 28 June 2021, 5 years ago.
What is the penalty if Dysynni Developments 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 Dysynni Developments 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.