- Company number
- 16607945
- Incorporated
- 25 Jul 20251 year trading
- Registered office
- 286B Chase Road, Southgate, London, N14 6HF
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Hotels and similar accommodation; Residents property management
Sinotech (London) Ltd is a 1-year-old private limited company registered in Southgate, company number 16607945, one of 36 building contractors in Southgate. Its next accounts are due at Companies House on 25 April 2027, and its first CT600 is due at HMRC on 24 July 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 Sinotech (London) Ltd is registered
The registered office is in Southgate (N14), in the Enfield local authority area, London. Show N14 6HF on a map.
Other trade companies in N14
- S & N Construction LtdBuilders
- Ekia Solutions LtdElectricians
- S&N Finishes LtdBuilders
- Soley London Group LtdElectricians
- Interior Build 1 LtdFinishing trades
- Niclons Engineering and Management LtdFinishing trades
- Kevlar Heating LimitedPlumbers and heating engineers
- Neonova Investments LtdProperty developers
Shared registered office
94 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 Sinotech (London) 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 25 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Apr 2027 to 25 May 2027 | £150 |
| 1 to 3 months late | 26 May 2027 to 25 Jul 2027 | £375 |
| 3 to 6 months late | 26 Jul 2027 to 25 Oct 2027 | £750 |
| More than 6 months late | From 26 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16607945
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2025 (1 year ago)
- Registered office
- 286B Chase Road, Southgate, London, N14 6HF
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Hotels and similar accommodation (SIC 55100)
Residents property management (SIC 98000) - Year end
- 31 July (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 Southgate
Other active building contractors registered in Southgate.
- Sovrexia Ltd2026
- UK Pro Building Ltd2024
- V&B Constructions Ltd2012
- Xpand Construction Solutions Ltd2020
- 1ST Choice Brothers Ltd2014
- 317 Finchley Road Construction Co Limited2019
- A S Management & Building Consultancy Ltd2023
- A&G Constructions (London) Ltd2019
All building contractors in Southgate · All trades in Southgate · Builders across the UK
Frequently asked questions
When are Sinotech (London) Ltd's accounts due?
Sinotech (London) Ltd's next accounts are due at Companies House by 25 April 2027 (in 194 days), covering the period to 31 July 2026.
When is Sinotech (London) 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 24 July 2026, due by 24 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sinotech (London) Ltd still trading?
Sinotech (London) Ltd is listed as active on the Companies House register (checked 13 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 Sinotech (London) Ltd do?
Sinotech (London) Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Hotels and similar accommodation (SIC 55100); Residents property management (SIC 98000).
How old is Sinotech (London) Ltd?
Sinotech (London) Ltd was incorporated on 25 July 2025, 1 year ago.
What is the penalty if Sinotech (London) 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 Sinotech (London) Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.