- Company number
- 15904298
- Incorporated
- 19 Aug 20242 years trading
- Registered office
- Broadway House 9-10, Upper Clifton Street, Cardiff, CF24 1PU
- Nature of business
- Construction of domestic buildings; Plastering; Other building completion and finishing
TZ Builders Limited is a 2-year-old private limited company registered in Cardiff, company number 15904298, one of 361 building contractors in Cardiff. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for TZ Builders LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Where TZ Builders Limited is registered
The registered office is in Cardiff (CF24), in the Cardiff local authority area, Wales. Show CF24 1PU on a map.
Other trade companies in CF24
- New Capital Tyres LtdMotor traders
- Beza Home Climate LtdPlumbers and heating engineers
- Jafa Construction LtdBuilders
- A R Lawn Care & Garden Services LtdLandscapers and gardeners
- RK Asset & Trading Co LtdMotor traders
- ZCC Garage LtdMechanics and garages
- Szot LtdPlasterers
- Oceanway Tyres LtdMechanics and garages
Also registered at this address
2 other companies use the same registered office as TZ Builders Limited.
- L&I Life Builders LimitedProperty developers
- Ultimate Repair Services LimitedMechanics and garages
What happens if TZ Builders 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15904298
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 August 2024 (2 years ago)
- Registered office
- Broadway House 9-10, Upper Clifton Street, Cardiff, CF24 1PU
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plastering (SIC 43310)
Other building completion and finishing (SIC 43390) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 21 November 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 Cardiff
Other active building contractors registered in Cardiff.
- Ubv Builders Ltd2025
- Uc Property Solutions Ltd2026
- Umbra Building Services Limited2016
- Umbrella Homes Construction Limited2016
- Vale Developments SW Ltd2025
- Vale Homes Limited1978
- Vale Property Maintenance Sew Ltd2026
- Vanguard Veritas Ltd2025
All building contractors in Cardiff · All trades in Cardiff · Builders across the UK
Frequently asked questions
When are TZ Builders Limited's accounts due?
TZ Builders Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is TZ Builders Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is TZ Builders Limited still trading?
TZ Builders 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 TZ Builders Limited do?
TZ Builders Limited is registered under Construction of domestic buildings (SIC 41202); Plastering (SIC 43310); Other building completion and finishing (SIC 43390).
How old is TZ Builders Limited?
TZ Builders Limited was incorporated on 19 August 2024, 2 years ago.
What is the penalty if TZ Builders 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 TZ Builders 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.