- Companies
- Property developers
- London
- Sek Investment Limited
Sek Investment Limited
- Company number
- 17139524
- Incorporated
- 7 Apr 2026
- Registered office
- 338A Regents Park Road, Office 3 and 4, London, N3 2LN
- Nature of business
- Development of building projects; Other building completion and finishing; Buying and selling of own real estate; Other letting and operating of own or leased real estate
Sek Investment Limited is a newly incorporated private limited company registered in London, company number 17139524, one of 14,100 property development companies in London. Its next accounts are due at Companies House on 7 January 2028, and its first CT600 is due at HMRC on 6 April 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 Sek Investment Limited is registered
The registered office is in London (N3), in the Barnet local authority area, London. Show N3 2LN on a map.
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- WS Cleaning Services LtdCleaning companies
- Landfall Projects LimitedProperty developers
Shared registered office
52 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 Sek Investment Limited 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 7 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Jan 2028 to 7 Feb 2028 | £150 |
| 1 to 3 months late | 8 Feb 2028 to 7 Apr 2028 | £375 |
| 3 to 6 months late | 8 Apr 2028 to 7 Jul 2028 | £750 |
| More than 6 months late | From 8 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17139524
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 April 2026
- Registered office
- 338A Regents Park Road, Office 3 and 4, London, N3 2LN
- Nature of business
- Development of building projects (SIC 41100)
Other building completion and finishing (SIC 43390)
Buying and selling of own real estate (SIC 68100)
Other letting and operating of own or leased real estate (SIC 68209) - Year end
- 30 April (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 2 July 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in London
Other active property development companies registered in London.
- Sekgro Groups Ltd2026
- Sela Homes Limited2025
- Selborne One Limited2001
- Selborne Two Limited2001
- Selbourne (Northwest) Limited2009
- Selbourne Developments Ltd2017
- Selbourne Estates Limited2017
- Selbourne the Pines Limited2025
All property development companies in London · All trades in London · Property developers across the UK
Frequently asked questions
When are Sek Investment Limited's accounts due?
Sek Investment Limited's next accounts are due at Companies House by 7 January 2028 (in 451 days), covering the period to 30 April 2027.
When is Sek Investment Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 6 April 2027, due by 6 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sek Investment Limited still trading?
Sek Investment Limited 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 Sek Investment Limited do?
Sek Investment Limited is registered under Development of building projects (SIC 41100); Other building completion and finishing (SIC 43390); Buying and selling of own real estate (SIC 68100); Other letting and operating of own or leased real estate (SIC 68209).
How old is Sek Investment Limited?
Sek Investment Limited was incorporated on 7 April 2026, less than a year ago.
What is the penalty if Sek Investment Limited 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 Sek Investment Limited 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.