- Companies
- Property developers
- Leigh on Sea
- Blok 663 Limited
Blok 663 Limited
- Company number
- 15095798
- Incorporated
- 25 Aug 20233 years trading
- Registered office
- Leigh Marina, High Street, Leigh on Sea, Essex, SS9 2ES
- Nature of business
- Development of building projects
Blok 663 Limited is a 3-year-old private limited company registered in Leigh on Sea, company number 15095798, one of 68 property development companies in Leigh on Sea. Companies House shows its accounts as overdue: they were due on 25 May 2025.
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 Blok 663 Limited is registered
The registered office is in Leigh on Sea (SS9), in the Southend-on-Sea local authority area, East of England. Show SS9 2ES on a map.
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- Alexander Hall Real Estate LtdProperty developers
- Britannia Roofing & Dampproofing LtdRoofers
- Elite Build & Co (Essex) LtdBuilders
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- MTS Piling LimitedSpecialist contractors
- Install & Transport LimitedMachinery repair and installation
Also registered at this address
4 other companies use the same registered office as Blok 663 Limited.
- 27 Leigh Park Road LimitedProperty developers
- Blok 841 LimitedProperty developers
- Essex Property Improvements LimitedFinishing trades
- Okaa Property LimitedBuilders
What happens if Blok 663 Limited files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 May 2025 to 25 Jun 2025 | £150 |
| 1 to 3 months late | 26 Jun 2025 to 25 Aug 2025 | £375 |
| 3 to 6 months late | 26 Aug 2025 to 25 Nov 2025 | £750 |
| More than 6 months late | From 26 Nov 2025 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2025 | £200 |
| 3 months late | 30 Nov 2025 | another £200 |
| 6 months late | 28 Feb 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2026 | 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
- 15095798
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 August 2023 (3 years ago)
- Registered office
- Leigh Marina, High Street, Leigh on Sea, Essex, SS9 2ES
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 August 2025
- Charges (mortgages)
- 4 outstanding of 4 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 Leigh on Sea
Other active property development companies registered in Leigh on Sea.
- Blok 841 Limited2023
- Brunco Construction Ltd2025
- Chambers Building & Interiors Limited2014
- Charlstair Limited1997
- Cherrytree Projects Ltd2010
- Cjoc Limited2021
- Crump Building Services Limited2006
- D.A.I. City Drywall Ltd2016
All property development companies in Leigh on Sea · All trades in Leigh on Sea · Property developers across the UK
Frequently asked questions
When are Blok 663 Limited's accounts due?
Blok 663 Limited's accounts were due at Companies House on 25 May 2025 and the register shows them as overdue.
When is Blok 663 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 24 August 2024, due by 24 August 2025, and one for the period to 31 August 2024, due by 31 August 2025. Corporation tax is payable 9 months and 1 day after the end of each.
Is Blok 663 Limited still trading?
Blok 663 Limited is listed as active on the Companies House register (checked 12 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 Blok 663 Limited do?
Blok 663 Limited is registered under Development of building projects (SIC 41100).
How old is Blok 663 Limited?
Blok 663 Limited was incorporated on 25 August 2023, 3 years ago.
What is the penalty if Blok 663 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 Blok 663 Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.