Tanat Valley Developments Limited
- Company number
- 04217375
- Incorporated
- 15 May 200125 years trading
- Registered office
- The Well House, Coed Llan Lane, Llanfyllin, Powys, SY22 5BP
- Nature of business
- Construction of domestic buildings
Tanat Valley Developments Limited is a 25-year-old private limited company registered in Llanfyllin, company number 04217375, one of the UK's building contractors. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £6,153 (+8.1%) on the year before, to £82K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £195K against £190K owed within a year: 1.0 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £82K | £195K | £190K | 3 | |
| 31 May 2024 | £76K | £214K | £186K | 2 | |
| 31 May 2023 | £82K | £235K | £181K | 2 | |
| 31 May 2022 | £133K | £286K | £168K | 2 | |
| 31 May 2021 | £167K | £78K | £147K | 1 | |
| 31 May 2020 | £192K | £437K | £58K | 2 | |
| 31 May 2019 | £178K | £157K | £96 | 3 | |
| 30 May 2019 | £171K | £157K | £11K | ||
| 30 May 2018 | £208K | £225K | £51K | ||
| 31 May 2017 | £162K | £250K | £118K |
Where Tanat Valley Developments Limited is registered
The registered office is in Llanfyllin (SY22), in the Powys local authority area, Wales. Show SY22 5BP on a map.
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What happens if Tanat Valley 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 04217375
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 May 2001 (25 years ago)
- Registered office
- The Well House, Coed Llan Lane, Llanfyllin, Powys, SY22 5BP
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 14 June 2026
- Charges (mortgages)
- 1 outstanding of 1 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 Tanat Valley Developments Limited's accounts due?
Tanat Valley Developments Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Tanat Valley Developments Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Tanat Valley Developments Limited still trading?
Tanat Valley 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 Tanat Valley Developments Limited do?
Tanat Valley Developments Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Tanat Valley Developments Limited?
Tanat Valley Developments Limited was incorporated on 15 May 2001, 25 years ago.
What is the penalty if Tanat Valley 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 Tanat Valley 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.