- Company number
- 16415178
- Incorporated
- 29 Apr 20251 year trading
- Registered office
- Ground Floor Office 2 Carnegie Court, Farnham Common, Slough, SL2 3GQ
- Nature of business
- Construction of domestic buildings
Sub Build Ltd is a 1-year-old private limited company registered in Slough, company number 16415178, one of 683 building contractors in Slough. Its next accounts are due at Companies House on 29 January 2027, and its first CT600 is due at HMRC on 28 April 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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Where Sub Build Ltd is registered
The registered office is in Slough (SL2), in the Buckinghamshire local authority area, South East. Show SL2 3GQ on a map.
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Also registered at this address
11 other companies use the same registered office as Sub Build Ltd.
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What happens if Sub Build 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 29 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jan 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 29 Apr 2027 | £375 |
| 3 to 6 months late | 30 Apr 2027 to 29 Jul 2027 | £750 |
| More than 6 months late | From 30 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 16415178
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2025 (1 year ago)
- Registered office
- Ground Floor Office 2 Carnegie Court, Farnham Common, Slough, SL2 3GQ
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 28 April 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 Slough
Other active building contractors registered in Slough.
- Subfox Limited2024
- Suhavi Bricklaying and Construction Ltd2026
- Sukhdev Singh1 Ltd2024
- Sukhmani Drylining Limited2022
- Sukhraj Brickwork Ltd2021
- Sumeetpal Plumbing & Build Ltd2025
- Sun&Kai Ltd2020
- Sunny Construction Line Ltd2019
All building contractors in Slough · All trades in Slough · Builders across the UK
Frequently asked questions
When are Sub Build Ltd's accounts due?
Sub Build Ltd's next accounts are due at Companies House by 29 January 2027 (in 109 days), covering the period to 30 April 2026.
When is Sub Build 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 28 April 2026, due by 28 April 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sub Build Ltd still trading?
Sub Build 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 Sub Build Ltd do?
Sub Build Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Sub Build Ltd?
Sub Build Ltd was incorporated on 29 April 2025, 1 year ago.
What is the penalty if Sub Build 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 Sub Build 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.