- Company number
- 16761617
- Incorporated
- 3 Oct 20251 year trading
- Registered office
- Flat 13, Nurbury House Frazer Nash Close, Isleworth, Middlesex, TW7 5FU
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
A.T Construction No.1 Ltd is a 1-year-old private limited company registered in Isleworth, company number 16761617, one of 132 building contractors in Isleworth. Its next accounts are due at Companies House on 3 July 2027, and its first CT600 is due at HMRC on 2 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns A.T Construction No.1 Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** T*** | Director | Oct 2025 |
Person with significant control
Where A.T Construction No.1 Ltd is registered
The registered office is in Isleworth (TW7), in the Hounslow local authority area, London. Show TW7 5FU on a map.
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What happens if A.T Construction No.1 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 3 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Jul 2027 to 3 Aug 2027 | £150 |
| 1 to 3 months late | 4 Aug 2027 to 3 Oct 2027 | £375 |
| 3 to 6 months late | 4 Oct 2027 to 3 Jan 2028 | £750 |
| More than 6 months late | From 4 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16761617
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 October 2025 (1 year ago)
- Registered office
- Flat 13, Nurbury House Frazer Nash Close, Isleworth, Middlesex, TW7 5FU
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 29 September 2026
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 Isleworth
Other active building contractors registered in Isleworth.
- Aa Apartment Services Limited2022
- Adrian Building Ltd2022
- Aiden Construct Ltd2025
- Aidicose Construction Ltd2025
- Alg Decorators Ltd2023
- Alphaville Construction Ltd2019
- Am Electrics Etc Ltd2014
- Am Screeds Ltd2023
All building contractors in Isleworth · All trades in Isleworth · Builders across the UK
Frequently asked questions
When are A.T Construction No.1 Ltd's accounts due?
A.T Construction No.1 Ltd's next accounts are due at Companies House by 3 July 2027 (in 263 days), covering the period to 31 October 2026.
When is A.T Construction No.1 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 2 October 2026, due by 2 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is A.T Construction No.1 Ltd still trading?
A.T Construction No.1 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 A.T Construction No.1 Ltd do?
A.T Construction No.1 Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is A.T Construction No.1 Ltd?
A.T Construction No.1 Ltd was incorporated on 3 October 2025, 1 year ago.
Who runs A.T Construction No.1 Ltd?
A.T Construction No.1 Ltd has 1 active director, the longest-serving appointed in Oct 2025. Their names and service addresses are on the Companies House register.
Who owns A.T Construction No.1 Ltd?
One person or company has significant control of A.T Construction No.1 Ltd: an individual (owns 75% or more of the shares).
What is the penalty if A.T Construction No.1 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 A.T Construction No.1 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.