- Company number
- 17476684
- Incorporated
- 23 Sep 2026
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings
Seu Builders Ltd is a newly incorporated private limited company registered in London, company number 17476684, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 23 June 2028, and its first CT600 is due at HMRC on 22 September 2028.
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 Seu Builders Ltd is registered
The registered office is in London (N1), in the Hackney local authority area, London. Show N1 7GU on a map.
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Shared registered office
1,583 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Seu Builders 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 23 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Jun 2028 to 23 Jul 2028 | £150 |
| 1 to 3 months late | 24 Jul 2028 to 23 Sep 2028 | £375 |
| 3 to 6 months late | 24 Sep 2028 to 23 Dec 2028 | £750 |
| More than 6 months late | From 24 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | 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
- 17476684
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2026
- Registered office
- 20 Wenlock Road, London, N1 7GU
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 London
Other active building contractors registered in London.
- Sev Building Ltd2026
- Sev Tiling Ltd2023
- Sevcenco Ltd2022
- Seven Sisters Residential Limited2024
- Seven Sparks Electrical Ltd2026
- Seventeen Builders Ltd2019
- Sevices247 Ltd2023
- Sevo Property and Investment Limited2020
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Seu Builders Ltd's accounts due?
Seu Builders Ltd's next accounts are due at Companies House by 23 June 2028 (in 620 days), covering the period to 30 September 2027.
When is Seu Builders 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 22 September 2027, due by 22 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seu Builders Ltd still trading?
Seu Builders 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 Seu Builders Ltd do?
Seu Builders Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Seu Builders Ltd?
Seu Builders Ltd was incorporated on 23 September 2026, less than a year ago.
What is the penalty if Seu Builders 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 Seu Builders 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.