- Company number
- 15145051
- Incorporated
- 18 Sep 20233 years trading
- Registered office
- Lindenmuth House 37 Greenham Business Park, Greenham, Thatcham, Berkshire, RG19 6HW
- Nature of business
- Construction of domestic buildings
Allfarthing Ltd is a 3-year-old private limited company registered in Thatcham, company number 15145051, one of 26 building contractors in Thatcham. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 30 September 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2024
From the balance sheet at 30 September 2024, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Allfarthing Ltd is registered
The registered office is in Thatcham (RG19), in the West Berkshire local authority area, South East. Show RG19 6HW on a map.
Other trade companies in RG19
- Envision Autos LtdMechanics and garages
- Mra Road Logistics LtdMechanics and garages
- Civic Contracting Group LimitedElectricians
- Kingston Home & Property Care LtdInstallers
- Jewels Brickwork LtdBuilders
- Notelppa Capital Group LtdProperty developers
- Adal Studio LtdLandscapers and gardeners
- Clean Start Solutions LtdCleaning companies
Also registered at this address
2 other companies use the same registered office as Allfarthing Ltd.
- M&D Heating & Ventilation LimitedBuilders
- Oje Autoservices LtdMechanics and garages
What happens if Allfarthing 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15145051
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 September 2023 (3 years ago)
- Registered office
- Lindenmuth House 37 Greenham Business Park, Greenham, Thatcham, Berkshire, RG19 6HW
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2024
- Last confirmation statement
- 17 September 2026
- Charges (mortgages)
- 3 outstanding of 3 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 in Thatcham
Other active building contractors registered in Thatcham.
- Ascot & Rose Limited2020
- B&A Construction Berkshire Ltd2025
- British Estate Services Limited1934
- D Gilmore Property Services Limited2013
- D'urberville Limited1998
- Eggleton Construction Ltd2016
- Groom Estates ( Berkshire) Limited2013
- Haines Property Limited2021
All building contractors in Thatcham · All trades in Thatcham · Builders across the UK
Frequently asked questions
When are Allfarthing Ltd's accounts due?
Allfarthing Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Allfarthing Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 September 2025, due by 30 September 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Allfarthing Ltd still trading?
Allfarthing Ltd 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 Allfarthing Ltd do?
Allfarthing Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Allfarthing Ltd?
Allfarthing Ltd was incorporated on 18 September 2023, 3 years ago.
What is the penalty if Allfarthing 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 Allfarthing Ltd 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.